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Journal articles on the topic 'Measurement of transmission parameters'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Vlahinic, Sasa, Dubravko Frankovic, Marijana Zivic Durovic, and Nino Stojkovic. "Measurement Uncertainty Evaluation of Transmission Line Parameters." IEEE Transactions on Instrumentation and Measurement 70 (2021): 1–7. http://dx.doi.org/10.1109/tim.2021.3070600.

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2

Shcherbyna, Olga, Maksym Zaliskyi, Yuliia Petrova, and Olena Kozhokhina. "INSTRUMENTAL ERRORS OF TRANSMISSION LINE PARAMETERS METER." Science-based technologies 53, no. 1 (2022): 22–30. http://dx.doi.org/10.18372/2310-5461.53.16505.

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The article is devoted to the construction of the instrumental errors dependences of the transmission line parameters meter on the parameters of the physical or structural hardware components of the meter. For this, when constructing a mathematical model, only the main functional connections between the structural links of the measuring device were selected, neglecting the influence of external factors on the stability of the structural elements parameters. As is know, each measuring instrument must have a certain set of metrological characteristics. According to these characteristics, measuri

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3

Vydmysh, Andriy, Oleksandr Voznyak, and Mykhailo Zamrii. "DEVELOPMENT OF A METHOD FOR DETERMINING THE MAXIMUM ACHIEVABLE GAIN (TRANSMISSION) KmS." Vibrations in engineering and technology, no. 3(98) (October 30, 2020): 25–31. http://dx.doi.org/10.37128/2306-8744-2020-3-3.

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Increasing the level of semiconductor devices, improving their characteristics significantly affects the potential stability in a wide range of frequencies. Classical methods and standard measuring equipment are not designed to measure the parameters of potentially unstable transistors. Measuring systems are excited uncontrollably, which increases the measurement error. Therefore, today there is an urgent task of measuring the parameters of both transistors in particular and quadrupoles in general, in the frequency range of potential instability. The clock frequency at which modern computer eq

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4

Xu, Minhu, Yun Guo, Yubo Shen, et al. "Measurement and Analysis of 220kV Overhead Transmission Line Parameters." Journal of Physics: Conference Series 1754, no. 1 (2021): 012078. http://dx.doi.org/10.1088/1742-6596/1754/1/012078.

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5

Li, Ming, Rony E. Amaya, Robert G. Harrison, and N. Garry Tarr. "X-Parameter Measurement of Pulse-Compression Nonlinear Transmission Lines." Journal of Electrical and Computer Engineering 2010 (2010): 1–5. http://dx.doi.org/10.1155/2010/415315.

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X-parameters provide a powerful and eminently practical solution for interoperable measurement, modeling, and simulation of nonlinear microwave and RF components. UsingX-parameters to do large-signal measurements has been brought into the spotlight. This paper introduces a newX-parameter application: measuring large-signal behaviour of pulse-compression nonlinear transmission lines (NLTLs). A specially configured Nonlinear Vector Network Analyzer (NVNA) was used to measure theX-parameters in the frequency-domain, and then the measured data was transformed into a nonlinear time-domain waveform.

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Jin, Lianhua, Sota Mogi, Tsutomu Muranaka, Eiichi Kondoh, and Bernard Gelloz. "Characterization of thin films from reflection and transmission ellipsometric parameters." Japanese Journal of Applied Physics 61, no. 1 (2022): 018004. http://dx.doi.org/10.35848/1347-4065/ac42af.

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Abstract Spectroscopic ellipsometry is a powerful tool for the characterization of thin films/surfaces. To simultaneously extract optical constant and film thickness from ellipsometric parameters ψ and Δ, dispersion models of material’s refractive index and spectroscopic ellipsometry measurement have been often required. In this work, we propose an extraction method of optical parameters of thin films from the reflection and transmission ellipsometric parameters. This method necessitates neither spectroscopic information of ψ and Δ, nor dispersion models. Verification measurements were carried

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7

Staszek, Kamil, Slawomir Gruszczynski, and Krzysztof Wincza. "Tunable multiport system for measurement of two-port scattering parameters." International Journal of Microwave and Wireless Technologies 9, no. 1 (2015): 99–112. http://dx.doi.org/10.1017/s1759078715001312.

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A novel multiport system, allowing for measurements of scattering parameters in over-two-octave frequency range is proposed. It is composed of two directional couplers and a standard 4 × 4 Butler matrix, and does not require any isolators. The presented system features a uniform power distribution providing the high precision of measurements, which can be further enhanced by a simple adjustment of the system's parameters. A comprehensive analysis of the proposed system configurations, a fully analytical calibration for transmission coefficient measurement, and the estimation of maximum measure

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8

Sochan, Arkadiusz. "Relations between ATM traffic parameters and quality of multimedia transmission - an experimental approach." Journal of Telecommunications and Information Technology, no. 2 (June 30, 2002): 14. http://dx.doi.org/10.26636/jtit.2002.2.128.

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In the paper, we present the results of research of MPEG-2 streams transmission through CBR and VBR channel in ATM network. We applied not only experimental and measurement methods but analytical ones as well. A description of the proposed measurement station includes: installed hardware, created software and prepared experimental data. Next, we present the applied measurement method. In the following section, we define a term of the quality of multimedia transmission. The measurement results were compared with the results of the analytical station model. We proposed a functional description o

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Skierucha, W., A. M Wilczek, and R. T Walczak. "Application of smart sensors in the measurement of soil physical parameters ." Research in Agricultural Engineering 50, No. 3 (2012): 96–102. http://dx.doi.org/10.17221/4933-rae.

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The study presents the project and partial implementation of a modern monitoring system for the measurement of soil physical parameters. It is provided with smart sensors equipped with signal conversion electronics, individual identification and communication means decreasing the complexity of the measurement system and also the measurement errors that can appear during analog signal transmission along the cables from the sensors to the measuring unit. The applied wireless communication system operates in the 433MHz ISM (Industrial, Scientific, Medical) licence free frequency band for transmis

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10

Santisteban, Javier Roberto, A. Steuwer, L. Edwards, P. J. Withers, and M. E. Fitzpatrick. "Mapping of unstressed lattice parameters using pulsed neutron transmission diffraction." Journal of Applied Crystallography 35, no. 4 (2002): 497–504. http://dx.doi.org/10.1107/s0021889802009044.

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Stress measurement by neutron diffraction depends critically on knowledge of the unstressed lattice parameter (a0) of the specimen under study. As a result, measurement of stress profiles in components wherea0is not homogeneous throughout the sample, such as welds or carburized surfaces, can be particularly difficult. An efficient solution to this problem is proposed based on the pulsed neutron transmission diffraction technique. This technique exploits the sharp steps in intensity, the so-called Bragg edges, appearing in the transmitted neutron spectra of polycrystalline materials, such steps

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11

Knyazev N. S., Malkin A. I., and Chechetkin V. A. "Losses measurement method for transmission lines at mmWave." Technical Physics Letters 48, no. 3 (2022): 34. http://dx.doi.org/10.21883/tpl.2022.03.52880.18981.

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An experimental method was developed to determine losses in microstrip and coplanar transmission lines for devices operating in the frequency range of 77-81 GHz. The parameters of the scattering matrices are obtained using a vector network analyzer and frequency upconverters. The calculation of losses in waveguide-coplanar and coplanar-microstrip adapters is made. Keywords: losses, attenuation, microstrip line, coplanar waveguide, electrodynamic parameters.

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12

Wang, Moqian. "Overview of Wide-Frequency Measurement Technology for Electrical Parameters in Distribution Substations." Applied and Computational Engineering 125, no. 1 (2025): 88–101. https://doi.org/10.54254/2755-2721/2025.20177.

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The rapid development of modern transmission and distribution systems requires transformers with wide bandwidth and high accuracy to meet the measurement needs of new characteristics in distribution substations, including wide dynamic ranges in the time-frequency domain and multi-parameter measurements. This paper outlines the measurement principles and structural design of new wide-frequency voltage and current measurement technologies. Based on the current status and measurement demands of distribution substations, an analysis of the economic, safety, and reliability aspects of these technol

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13

Remond, Didier, and Jarir Mahfoudh. "From Transmission Error Measurements to Angular Sampling in Rotating Machines with Discrete Geometry." Shock and Vibration 12, no. 2 (2005): 149–61. http://dx.doi.org/10.1155/2005/205291.

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The benefits of angular sampling when measuring various signals in rotating machines are presented and discussed herein. The results are extracted from studies on transmission error measurements with optical encoders in the field of power transmissions and can be broadened to include phase difference measurements, such as torsional vibrations, and applied to control, monitoring and measurement in rotating machines with discrete geometry. The main conclusions are primarily that the use of angular sampling enables the exact location of harmonics and, consequently, the obtaining of spectral ampli

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14

Lezaca, Jorge E., Patrick Quéffélec, and Alexis Chevalier. "Broadband permeability measurement method for ferrites at any magnetization state: direct problem." International Journal of Microwave and Wireless Technologies 3, no. 3 (2011): 289–94. http://dx.doi.org/10.1017/s1759078711000341.

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A broadband permeability measurement method based on the full-wave electromagnetic (EM) analysis of a non-reciprocal transmission line is presented. The dispersion diagram for the first significant modes inside the ferrite loaded section of the line is obtained. The presence of magnetostatic modes generated by the magnetized ferrite inside the line is verified. Using a mode matching technique, the theoretical scattering parameters (S-parameters) of the transmission line are calculated. The full-wave analysis is validated with measurements of material properties in limit cases.

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15

Pawar, V. P., N. M. More, and S. C. Mehrotra. "Measurement of Transmission Line Parameters using the Time Domain Technique." IETE Technical Review 17, no. 6 (2000): 347–49. http://dx.doi.org/10.1080/02564602.2000.11416927.

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16

Tao, Lin, Lin Zhang, Xin Wang, Xianguang Fan, and Hua Shi. "Dynamic Screw Lead Accuracy Measurement: Research on the Compensation of the Workpiece Placed Away from the Ideal Position." Sensors 24, no. 21 (2024): 6829. http://dx.doi.org/10.3390/s24216829.

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The screw, a critical element in a variety of transmission mechanisms, significantly influences the performance of the transmission process. Accurate measurement of screw lead is crucial for ensuring the quality of transmission equipment. However, the measurement process can be affected by the precision limits of the measuring instruments and the challenges of manual fine adjustments. This can lead to the screw being misplaced, introducing errors due to the off-center positioning of the workpiece. Such errors can hinder the achievement of high-precision measurements. This research aims to redu

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17

Wu, Fan, Aiqin Li, Saihua He, Mohammad Ikbal, and Mohamed A. Sharaf Eldean. "Research on Measurement and Control System of Common Parameters of Agricultural Equipment Based on Wireless Transmission." International Journal of Agricultural and Environmental Information Systems 12, no. 2 (2021): 73–86. http://dx.doi.org/10.4018/ijaeis.20210401.oa6.

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To resolve the limited transmission and complicated layout, the common parameter measurement and control system of agricultural equipment use virtual instrument technology and embedded technology. The research results show that the wireless transmission data of the system is accurate and reliable. The linearity errors of acquisition divestiture (AD) and frequency counting (FI) channel measurements are only 0.38% and 0.006%, respectively, and the resolution is 0.01V and 1 Hz. This performance evaluation fully meets equipment detection in agricultural use. The system is integrated with various w

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18

Silkis, E. G., E. G. Silkis, A. S. Stankevich, V. N. Krasheninnikov, Yu A. Repeev, and D. V. Novikov. "MEASUREMENT OF PARAMETERS OF BROADBAND EMISSION USING MINI-SPECTROMETERS." NAUCHNOE PRIBOROSTROENIE 31, no. 4 (2021): 102–9. http://dx.doi.org/10.18358/np-31-4-i102109.

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On the basis of mini-spectrometers, a reference lamp of the SIRSH type with a known color temperature, and line spectrum sources, an inexpensive hardware complex has been created for measuring the emission parameters of heterodiodes and interference filters. Examples of recording the emission of heterodiodes (full width at half maximum is 17–30 nm) with a maximum of emission in the region of 659 and 764 nm and measurement of an interference filter (FWHM of the bandwidth is 12 nm) with a maximum transmission of 727 nm are given. The emission parameters of the SIRSH standard lamp are introduced

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19

Gimpilevich, Yu B., and S. E. Zebek. "QUADRATURE MEASUREMENT METHOD FOR COMPLEX PARAMETERS OF MICROWAVE TWO-POLES." Journal of the Russian Universities. Radioelectronics, no. 1 (February 28, 2019): 29–38. http://dx.doi.org/10.32603/1993-8985-2019-22-1-29-38.

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A new method based on direct frequency conversion is developed for measuring complex reflection coefficient of microwave two-poles. The method is based on the use of quadrature synchronous detection of the signal branched by omnidirectional probe with subsequent quadrature processing of the detected signal components. Such approach makes it possible to solve measuring task by simultaneously analyzing both amplitude and phase distribution of the field in transmission line which leads to redundancy. In addition, the use of direct frequency conversion provides the detection linearity in considera

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20

Yang, Hai, and Hangyu Zhang. "Research on On-line Measurement Accuracy Improvement Technology of Drilling Fluid Rheological Parameters." Frontiers in Sustainable Development 5, no. 3 (2025): 321–32. https://doi.org/10.54691/pavvj838.

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Drilling fluid plays an irreplaceable role in drilling operations, serving functions such as cuttings transportation, signal transmission, and wellbore stability maintenance. The measurement of drilling fluid rheological parameters is crucial for optimizing hydraulic rock breaking, precisely controlling bottom-hole pressure and wellbore stability, and ensuring wellbore cleanliness. Currently, manual measurement methods such as the Marsh funnel and six-speed rotational viscometer are commonly used on-site, but they suffer from long measurement cycles and significant human interference. The onli

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21

Cheng, Jia, Yi Wang, and Chuan Jin Cui. "Finite Element Dynamic Analysis of the Shafting of Transmission-Laser-Scanning-Emitter." Advanced Materials Research 694-697 (May 2013): 190–93. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.190.

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The transmission laser-scanning diameter-measurement system uses the parallel laser-scanning principle to achieve high-precision measurements of radial dimensions of shaft parts. The transmission laser-scanning emitter is a mechanical scanning device of which scanning accuracy has a significant impact on stability of the measurement system. The dynamic model of the emitter's shaft rotor is established. Dynamic performances according to variant parameters are derived by finite element analysis simulation. Characteristics of high-speed-rotors with different structures, such as vibration mode and

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22

Wang, Kaibai, Zihao Zhang, Xingwei Xu, et al. "A New Method for Anti-Interference Measurement of Capacitance Parameters of Long-Distance Transmission Lines Based on Harmonic Components." Electronics 13, no. 10 (2024): 1982. http://dx.doi.org/10.3390/electronics13101982.

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In the context of strong electromagnetic interference environments, the measurement accuracy of the capacitance parameters of transmission lines under power frequency measurement methods is not high. In this paper, a capacitance parameter anti-interference measurement method for transmission lines based on harmonic components is proposed to overcome the impact of power frequency interference. When applying this method, it is first necessary to open-circuit the end of the line under test. Subsequently, apply voltage to the head end of the tested line through a step-up transformer. Due to the sa

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23

Dreiling, Dmitrij, Dominik Itner, Tim Hetkämper, Carolin Birk, Hauke Gravenkamp, and Bernd Henning. "A pulse-echo measurement setup to determine viscoelastic material parameters." Journal of Physics: Conference Series 2822, no. 1 (2024): 012169. http://dx.doi.org/10.1088/1742-6596/2822/1/012169.

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Abstract Due to their versatility, the application of polymers in research and industry continues to increase. Since the majority of design processes are simulation-aided, precise material parameters are required to obtain realistic results. The quasi-statically and destructively measured material parameters provided by manufacturers for this purpose are usually insufficient. An acoustic method is generally capable of measuring the frequency-dependent viscoelastic material parameters in a non-destructive manner. In particular, an ultrasonic transmission measurement setup for determining these

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24

Ge, Jinming, Yibo Yin, and Wei Wang. "Lightning Current Measurement Form and Arrangement Scheme of Transmission Line Based on Point-Type Optical Current Transducer." Sensors 23, no. 17 (2023): 7467. http://dx.doi.org/10.3390/s23177467.

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Lightning strikes are the main cause of transmission line faults, and the accurate lightning current number is an important basis to guide scientific lightning protection. The use of sensors with excellent sensing performance to carry out lightning current monitoring on transmission lines is beneficial to the accumulation of key parameters of original lightning strikes, so it is necessary to study the lightning current measurement structure of transmission lines. In this paper, an optical current-sensing unit is used to monitor the lightning current on transmission lines. A measuring structure

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25

Huo, Xiao Di, and Zhi Rui Liang. "Study on Mixed-Measurement of Zero-Sequence Parameters of Two Parallel Coupled Transmission Lines." Applied Mechanics and Materials 530-531 (February 2014): 127–30. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.127.

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Based on WAMS technology and the demand of real projects, a method of mixed measurement of zero-sequence parameters for two parallel coupled transmission lines is proposed. The principles and specific methods of mixed measurement mainly based on the incremental method are explained in details.The mathematical model is given and a digital simulation of coupled transmission lines with different zero-sequence parameters is conducted to verify the method.

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26

Samoylov, A. G., and O. A. Friedman. "Measuring setup for determining the parameters of materials that absorb radio waves." Journal of Physics: Conference Series 2373, no. 2 (2022): 022023. http://dx.doi.org/10.1088/1742-6596/2373/2/022023.

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Abstract A measuring complex for determining the coefficients of reflection and transmission of electromagnetic radiation through radio-absorbing materials has been developed and manufactured. Measurements are made by the direct method by comparison with a reference material. When measuring the transmission of radio waves through an absorbing material, the standard is air, and when measuring the reflection of radio waves, a sheet of steel is used as the standard. When measuring the transmission of radio waves through an absorbing material, the standard is air, and when measuring the reflection

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27

Men, Xiuhua, Fangzhen Song, and Haiyan Shao. "Investigation on transmission parameters of vibration measurement on high temperature environment." Procedia Engineering 15 (2011): 5531–35. http://dx.doi.org/10.1016/j.proeng.2011.08.1026.

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28

Mann, Kulwinder Singh, and Sukhmanjit Singh Mann. "Investigation of Gamma-Ray’s Transmission Geometries for the Measurement of Attenuation Coefficients." Zeitschrift für Naturforschung A 73, no. 12 (2018): 1083–90. http://dx.doi.org/10.1515/zna-2018-0282.

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AbstractFor the measurement of attenuation parameters of any material for gamma (γ)-rays, the narrow-beam transmission geometry is one of the essential requirements. Linear attenuation coefficient (μ, cm−1), half value layer thickness and mean free path are some fundamental parameters used for the analysis of γ-ray attenuation behaviour of any material. The complete experimental setup used to measure these parameters is termed as γ-ray transmission geometry. The geometrical parameters such as the size of collimator aperture, thickness of sample (absorber), source to absorber (SA) distance, abs

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29

Tong, Zhi Min, Li Hong Rong, and Cao Jun Huang. "Grain Moisture Content Measurement System Based on Time-Domain Transmission Technology." Applied Mechanics and Materials 241-244 (December 2012): 214–17. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.214.

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To measure the grain moisture content with time-domain transmission technology (TDT), electromagnetic wave propagation characteristics was studied to find the relationship of electromagnetic wave propagation and the dielectric parameters of grain. Basic structure of measurement sensor was designed to be coaxial transmission line based on TDT theories. The main parameters of the sensor were calculated. The measurement circuit was designed based on processing theories of high frequency electromagnetic signals. Grain samples with different moisture contents were measured by both TDT system and th

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30

Rakov, Aleksei, Vladimir Zhukov, Artem Kukanov, and Vladimir Ukhandeev. "Set of measuring test fixtures for PCB materials research." ITM Web of Conferences 30 (2019): 07003. http://dx.doi.org/10.1051/itmconf/20193007003.

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Designed and manufactured set of measuring test fixtures for printed circuit board (PCB) materials research and characterization is described in this article. Attention is paid to special designed test vehicle “General board” which includes six types of transmission lines that are used for PCB materials characterization by two measurement methods. Measurements of the frequency dependencies of the dielectric constant and dielectric loss for a number of the most widely used PCB substrates are presented. The comparison of the measurement results made by two measurement methods is also shown. The

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31

Hollaus, Karl, Susanne Bauer, Michael Leumüller, and Christian Türk. "Measurement and modeling of effective cable parameters of unshielded conductors." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 41, no. 3 (2022): 1041–51. http://dx.doi.org/10.1108/compel-03-2021-0098.

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Purpose Cables are ubiquitous in electronic-based systems. Electromagnetic emission of cables and crosstalk between wires is an important issue in electromagnetic compatibility and is to be minimized in the design phase. To facilitate the design, models of different complexity and accuracy, for instance, circuit models or finite element (FE) simulations, are used. The purpose of this study is to compare transmission line parameters obtained by measurements and simulations. Design/methodology/approach Transmission line parameters were determined by means of measurements in the frequency and tim

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32

Kostrikov, Oleksandr L., Volodymyr S. Kupko, Andrii I. Shloma, et al. "Comparisons of national standards of the unit of length in the field of measurement of parameters of form deviation the flatness of optical surfaces COOMET.L-S15." Izmeritel`naya Tekhnika, no. 7 (2021): 60–64. http://dx.doi.org/10.32446/0368-1025it.2021-7-60-64.

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Precision interference measurement of parameters of form optical surfaces are one of the most important type of the measurement in the field of the geometrical values. In countries-participants of this comparisons the special primary standards in this field of measurements take part in reproduction and transmission the unit of length in this field of measurements ensuring high measuring and calibrating capabilities countries in this type of measurement. In this article presents the result of supplementary comparisons COOMET 570/UA-a/12. The result of comparisons allowed to declare to Belarus a

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He, Shu Qian, Chun Shi, and Zheng Jie Deng. "Adaptive Access Mechanism for WSNs of Eco-Environments." Advanced Materials Research 807-809 (September 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.3.

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To solve the data transmission of eco-environment monitor by using WSNs, a new adaptive access mechanism is presented. The adaptive access mechanism senses the channel status information and the events of data transmissions, success or collision in the channel. Based on the measurement of idle slot intervals between two data transmission, nodes adjust parameters of access mechanism, which can adapt to the dynamic network configurations. The analysis and computer simulation demonstrate the validity and good scalability of the proposed access mechanism.

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Sintiyah, Elisa Ayu, Ajesh Faizal, Sumber Sumber, and Singgih Yudha Setiawan. "Wireless Blood Pressure Monitor with Android Integration: Tracking Systolic and Diastolic Parameters." Jurnal Teknokes 17, no. 2 (2024): 107. http://dx.doi.org/10.35882/teknokes.v17i2.553.

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Blood pressure measurement plays a crucial role in detecting underlying diseases in the human body. It enables the identification of conditions like heart failure, kidney failure, liver damage, and stroke, underscoring the importance of regular measurements. To facilitate independent and routine blood pressure monitoring, the development of an automatic blood pressure measuring device is essential. This research aims to design and fabricate a digital sphygmomanometer that can transmit measurements to a smartphone through the Blynk application. The blood pressure measurement is conducted using

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I., V. ZHUKOVYTSKYY, and A. KLIUSHNYK I. "CHOICE OF THE OPTIMAL PARAMETERS OF MEASURING THE SHAFT ROTATION FREQUENCY OF THE HYDRAULIC TRANSMISSION OF THE LOCOMOTIVE USING MICROCONTROLLER." Science and Transport Progress, no. 2(68) (April 24, 2017): 36–45. https://doi.org/10.15802/stp2017/99945.

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<strong>Purpose.</strong> The article provides for finding solution to the problem of developing and improving the means for measuring tachometric data of the previously created information and measuring system for testing hydraulic locomotive transmission by substantiating the optimal sensor design and signal processing algorithms. At the same time first of all it is necessary to start from the possibility of modifying the already existing test bench for hydraulic locomotive transmissions at the Dnipropetrovsk diesel locomotive repair plant «Promteplovoz». <strong>Method

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Liu, Yu, Yong Yang, Haobin Chen, et al. "Accurate Measurement Method for Distribution Parameters of Four-Circuit Transmission Lines with the Same Voltage Considering Earth Resistance." Energies 18, no. 7 (2025): 1805. https://doi.org/10.3390/en18071805.

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In response to the limitations of existing parameter measurement methods for four-circuit transmission lines of the same voltage—namely, the failure to account for earth resistance and the complexity of methods that hinder live-line measurements—this paper proposes a more accurate method for measuring the distribution parameters of such transmission lines, incorporating earth resistance. The paper derives the transmission equations, including earth resistance, from the standard transmission line equations for three-phase power lines. The symmetrical component method is employed to decouple the

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Глушков, А. Н., Ю. В. Литвиненко, А. В. Мандрыкин, and Е. В. Черноярова. "MEASUREMENT OF NAKAGAMI DISTRIBUTION PARAMETERS." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА 19, no. 5 (2023): 77–82. http://dx.doi.org/10.36622/vstu.2023.19.5.010.

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задача экспериментального определения параметров моделей каналов радиосвязи является актуальной в связи с развитием систем передачи информации. Помимо традиционных для радиотехники моделей с гауссовой помехой и релеевскими или райсовскими замираниями появляются другие варианты, учитывающие особенности новых средств связи. Модели на основе плотности распределения вероятностей Накагами возникают в многолучевых радиоканалах и описывают изменение уровня принимаемого сигнала (его замирания) в различных условиях приема и частотных диапазонах, и в различных его вариантах обобщают классические модели.

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Liu, Yu Wang, Yu Quan Leng, Hai Tao Luo, and Wei Jia Zhou. "The Optimization of Mechanical and Electrical Integration Linear Output Transmission System with Sensor Function." Advanced Materials Research 591-593 (November 2012): 1695–700. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1695.

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The new highly integrated mechanical and electrical integration linear output sensor system designed is used to solve the problems of movement conversion/transmission, force transmission/ measurement etc. Firstly, further theory study is presented and the function of sensing parameters and transmission parameters is deduced; Secondly, the key parameters of system design and the constrained conditions are shown based on the system structure and strength theory. At last through simulation to determine the optimal structure parameters meeting the specific conditions and establish the correspondin

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Li, Yifan, Qi Xiao, Lisha Peng, Songling Huang, and Chaofeng Ye. "A Precise Oxide Film Thickness Measurement Method Based on Swept Frequency and Transmission Cable Impedance Correction." Sensors 25, no. 2 (2025): 579. https://doi.org/10.3390/s25020579.

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Accurately measuring the thickness of the oxide film that accumulates on nuclear fuel assemblies is critical for maintaining nuclear power plant safety. Oxide film thickness typically ranges from a few micrometers to several tens of micrometers, necessitating a high-precision measurement system. Eddy current testing (ECT) is commonly employed during poolside inspections due to its simplicity and ease of on-site implementation. The use of swept frequency technology can mitigate the impact of interference parameters and improve the measurement accuracy of ECT. However, as the nuclear assembly is

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Schetelig, B., S. Parr, R. Rambousky, and S. Dickmann. "Simplified susceptibility analysis of shielded multiconductor transmission lines." Advances in Radio Science 10 (September 18, 2012): 221–25. http://dx.doi.org/10.5194/ars-10-221-2012.

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Abstract. In this contribution, a new kind of coupling parameters for shielded multiconductor transmission lines is presented. These parameters are easy to calculate and simplify the vulnerability analysis of shielded cables with multiple inner conductors. In this paper, the underlying theory is derived in detail. The gained insight is demonstrated with a sample measurement.

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Kucukonder, A., and S. Tekerek. "Measurement of Photon Matter Interaction Parameters for some Iodine Compounds." Journal of Biomedical Research & Environmental Sciences 1, no. 8 (2020): 421–26. http://dx.doi.org/10.37871/jbres1173.

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In this study, total atomic cross-section (σta), total moleculer cross-section (σtm) total electronic cross-section (σte), effective atomic number (Zeff), effective electron density (Neff) and Kerma (K) were determined both experimentally and theoretically values for some iodine compounds. Experimental mass attenuation coefficient (µ/ρ) values for some iodine compounds were calculated with the data obtained from the test results. The theoretical mass attenuation coefficient values of these compounds were calculated with the WinXCOM data program. Also, we have performed the measurements for the

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Kubas, Krzysztof. "Measurement of the friction parameters of a belt transmission under heavy load." Archives of Automotive Engineering - Archiwum Motoryzacji 95, no. 1 (2022): 18–31. http://dx.doi.org/10.14669/am.vol95.art2.

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This article presents the results of measurements of a belt transmission with a poly-V belt 5PK, most often used in the industry, especially in industrial drives, agricultural machines and in the automotive industry. The main goal of the works was to obtain the dependence of the belt slip value on the measured, relatively high values of resistance torque. For this purpose, a series of measurements were made using a specialised research stand consisting of two alternating current motors and attached pulleys. It considered four cases of the value of the belt pre-tensioning force. In each of the

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Brown, Jesse M., R. C. Block, A. Youmans, et al. "Validation of Unresolved Neutron Resonance Parameters Using a Thick-Sample Transmission Measurement." Nuclear Science and Engineering 194, no. 3 (2019): 221–31. http://dx.doi.org/10.1080/00295639.2019.1688087.

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Bol’shanin, G. A., L. Yu Bol’shanina, and E. G. Mar’yasova. "Indirect Measurement of Aggregate Primary Parameters of a Two-Wire Transmission Line." Measurement Techniques 59, no. 5 (2016): 521–25. http://dx.doi.org/10.1007/s11018-016-1001-6.

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Jeong, H. W., S. M. Seo, H. U. Hong, and Y. S. Yoo. "Characterization of the parameters relating adjacent grains using transmission electron microscopy." Journal of Applied Crystallography 43, no. 6 (2010): 1495–501. http://dx.doi.org/10.1107/s002188981004149x.

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A simple technique is presented for characterizing parameters such as the misorientation angle and the axis of rotation between two adjacent grains using transmission electron microscopy (TEM), without the need for an image of the Kikuchi pattern. The technique described makes use of the orthogonal relationship between the tilt axes used in TEM and the axes of the cubic crystal. The relationship was established using the well known triangulation method, in which the direction of the crystal parallel to the beam direction is determined from the measured tilt angles of the three zone axes. The e

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Su, Shujing, Min Yi, Wei Ji, Qing He, and Xiufeng Xie. "A Study of Transmission Control Method for Distributed Parameters Measurement in Large Factories and Storehouses." Journal of Electrical and Computer Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/290925.

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For the characteristics of parameters dispersion in large factories, storehouses, and other applications, a distributed parameter measurement system is designed that is based on the ring network. The structure of the system and the circuit design of the master-slave node are described briefly. The basic protocol architecture about transmission communication is introduced, and then this paper comes up with two kinds of distributed transmission control methods. Finally, the reliability, extendibility, and control characteristic of these two methods are tested through a series of experiments. Mor

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Krupka, Jerzy. "Microwave Measurements of Electromagnetic Properties of Materials." Materials 14, no. 17 (2021): 5097. http://dx.doi.org/10.3390/ma14175097.

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A review of measurement methods of the basic electromagnetic parameters of materials at microwave frequencies is presented. Materials under study include dielectrics, semiconductors, conductors, superconductors, and ferrites. Measurement methods of the complex permittivity, the complex permeability tensor, and the complex conductivity and related parameters, such as resistivity, the sheet resistance, and the ferromagnetic linewidth are considered. For dielectrics and ferrites, the knowledge of their complex permittivity and the complex permeability at microwave frequencies is of practical inte

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Adnan, Küçükönder1 and Saniye Tekerek2*. "Measurement of Photon Matter Interaction Parameters for some Iodine Compounds." Journal of Biomedical Research & Environmental Sciences 1, no. 8 (2020): 421–26. https://doi.org/10.37871/jbres1173.

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Abstract:

In this study, total atomic cross-section (σta), total moleculer cross-section (σtm) total electronic cross-section (σte), effective atomic number (Zeff), effective electron density (Neff) and Kerma (K) were determined both experimentally and theoretically values for some iodine compounds. Experimental mass attenuation coefficient (μ/ρ) values for some iodine compounds were calculated with the data obtained from the test results. The theoretical mass attenuation coeffi cient values of these compounds were calculated with the WinXCOM data program. Also, we have performe

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Mederos-Henry, Francisco, Sophie Hermans, and Isabelle Huynen. "Microwave Characterization of Metal-Decorated Carbon Nanopowders Using a Single Transmission Line." Journal of Nanomaterials 2019 (April 18, 2019): 1–11. http://dx.doi.org/10.1155/2019/3280461.

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This paper presents a novel approach for the characterization of microwave properties of carbon-based nanopowders, decorated or not with magnetic nanoparticles. Their microwave parameters, dielectric constant, electrical conductivity, and complex magnetic permeability are extracted from measurements performed using a single transmission line acting as a test cell. Two geometries of transmission line were tested, and successful results were obtained with each one of them. The measurement results are assessed by a phenomenological model enabling to fit the measurement of the dielectric constant

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Chen, Yong, and Wen Ming Yu. "Study of Portable Shaft Power Measurement System." Applied Mechanics and Materials 490-491 (January 2014): 1522–25. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1522.

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During the development of vehicle transmission system, in order to obtain operating state of transmission system, thoroughly study control scheme of transmission system, it needs to acquire, save, display parameters such as torque and speed of shaft. The measurement principles of torque and speed were analysed. A portable measurement system of torque and speed based on virtual instrument was designed, which can be used to measure toque and speed conveniently and accurately. Vehicle experiments were carried out using this system. It shows experimentally that the system has high accuracy and goo

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