Einloggen

Thematische Bibliographien / Measurement / Zeitschriftenartikel

Zeitschriftenartikel zum Thema „Measurement“

Um die anderen Arten von Veröffentlichungen zu diesem Thema anzuzeigen, folgen Sie diesem Link: Measurement.

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 8. Juni 2024

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit Top-50 Zeitschriftenartikel für die Forschung zum Thema "Measurement" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Sehen Sie die Zeitschriftenartikel für verschiedene Spezialgebieten durch und erstellen Sie Ihre Bibliographie auf korrekte Weise.

1

Oleniacz, Grzegorz, Izabela Skrzypczak und Tomasz Świętoń. „ACCURACY OF RTN MEASUREMENT IN VARIOUS MEASUREMENT CONDITIONS“. Zeszyty Naukowe Uniwersytetu Zielonogórskiego / Inżynieria Środowiska 166, Nr. 46 (03.07.2017): 16–24. http://dx.doi.org/10.5604/01.3001.0010.6029.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Series of GNSS receiver tests allowed to determine real accuracy of RTN measurements. Repeated measurements allowed to estimate accuracy in function of used navigation satellite system, duration of measurements and field conditions on measurement site which are related to horizon visibility by obstacles (bushes). Research results indicate no dependency between the technology used and the measurement accuracies obtained and significant impact of the conditions on set-up on the measurement's results.

2

Łętocha, Aneta, Tatiana Miller und Janusz Kalisz. „Influence of measurement areas selection on roughness parameters in burnished surfaces measurements“. Mechanik, Nr. 5-6 (Mai 2016): 552–53. http://dx.doi.org/10.17814/mechanik.2016.5-6.82.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

3

Oberrecht, Stephen P., James G. Kohl und Duane L. Simonson. „OS7-14 Dynamic Complex Shear Modulus Measurements of Silicone Elastomers Containing Coated Clay Particles Using an Experimental Linear Rheometer(Stress and strain measurement IV,OS7 Stress and strain measurement,MEASUREMENT METHODS)“. Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2015.14 (2015): 105. http://dx.doi.org/10.1299/jsmeatem.2015.14.105.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

4

Buchholz, F. I., W. Kessel und F. Melchert. „Noise power measurements and measurement uncertainties“. IEEE Transactions on Instrumentation and Measurement 41, Nr. 4 (1992): 476–81. http://dx.doi.org/10.1109/19.155910.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

5

Judish, R. M. „Quality control of measurements—Measurement assurance“. Proceedings of the IEEE 74, Nr. 1 (1986): 23–25. http://dx.doi.org/10.1109/proc.1986.13394.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

6

Parekh, S. V. „The measurements column (antenna gain measurement)“. IEEE Antennas and Propagation Magazine 32, Nr. 2 (April 1990): 41–44. http://dx.doi.org/10.1109/74.80503.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

7

KIDO, Ryo, und Kozo TAGUCHI. „Cellular Temperature Measurement by Dielectrophoretic Impedance Measurement Method“. Journal of the Japan Society of Applied Electromagnetics and Mechanics 23, Nr. 3 (2015): 601–5. http://dx.doi.org/10.14243/jsaem.23.601.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

8

Kroc, Edward. „Generalized measurement error: Intrinsic and incidental measurement error“. PLOS ONE 18, Nr. 6 (29.06.2023): e0286680. http://dx.doi.org/10.1371/journal.pone.0286680.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

In this paper, we generalize the notion of measurement error on deterministic sample datasets to accommodate sample data that are random-variable-valued. This leads to the formulation of two distinct kinds of measurement error: intrinsic measurement error, and incidental measurement error. Incidental measurement error will be recognized as the traditional kind that arises from a set of deterministic sample measurements, and upon which the traditional measurement error modelling literature is based, while intrinsic measurement error reflects some subjective quality of either the measurement tool or the measurand itself. We define calibrating conditions that generalize common and classical types of measurement error models to this broader measurement domain, and explain how the notion of generalized Berkson error in particular mathematicizes what it means to be an expert assessor or rater for a measurement process. We then explore how classical point estimation, inference, and likelihood theory can be generalized to accommodate sample data composed of generic random-variable-valued measurements.

9

Gowda S.L., Girish, Jayanth Kumar H.V., Anand Kuriyan Mathew, Veeresh G.S. und Cholenahally Nanjappa Manjunath. „Intraoperative Flow Measurement of Saphenous Vein Graft: Transit Time Flowmetry Measurement Versus Free Flow Measurement“. Journal of Cardiovascular Medicine and Surgery 5, Nr. 1 (2019): 11–14. http://dx.doi.org/10.21088/jcms.2454.7123.5119.2.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

10

Su, Fei, und Xiaoxu Pan. „OS7-2 Stress measurement for ferromagnetic specimen using magnetoacoustic emission(Stress and strain measurement I,OS7 Stress and strain measurement,MEASUREMENT METHODS)“. Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2015.14 (2015): 93. http://dx.doi.org/10.1299/jsmeatem.2015.14.93.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

11

Lingamdenne, Peter Ericson, und Pavani Marapaka. „MEASUREMENT AND ANALYSIS OF ANTHROPOMETRIC MEASUREMENTS OF THE HUMAN SCAPULA IN TELANGANA REGION, INDIA“. International Journal of Anatomy and Research 4, Nr. 3.2 (31.08.2016): 2677–83. http://dx.doi.org/10.16965/ijar.2016.302.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

12

Ishikawa, Shigemi, Kazutoshi Furukawa, Sozo Itoh, Tokiko Nakasato, Fumiko Nemoto, Riichiro Sato, Atsushi Yamagishi et al. „Fundamental study in measurement of gingival color. Measurement apparatus and conditions of measurements.“ Nihon Hotetsu Shika Gakkai Zasshi 32, Nr. 2 (1988): 462–70. http://dx.doi.org/10.2186/jjps.32.462.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

13

Fuzak, Corey. „Sound level measurement accessories“. INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, Nr. 1 (24.06.2022): 552–59. http://dx.doi.org/10.3397/nc-2022-772.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Measurement standards provide sound level measurement methods and the information to be recorded. There are also many documents about the best practices utilized for completing the measurements. The current paper provides examples of some useful sound level measurement accessories. Luggage, safety equipment, hand tools, and tripods are some of the accessories covered. The accessories help accomplish the measurements.

14

Johannsen, K. G. „Measurement of satellite communication parameters-transponder measurements“. IEEE Transactions on Instrumentation and Measurement 37, Nr. 1 (März 1988): 121–26. http://dx.doi.org/10.1109/19.2679.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

15

Lopez-Sanchez, Ana, und Lester W. Schmerr. „Ultrasonic Nondestructive Measurement Systems – Models and Measurements“. Key Engineering Materials 321-323 (Oktober 2006): 1–5. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

The electroacoustic measurement model is an explicit model of an entire ultrasonic measurement system, including the pulser/receiver, cabling, and transducers. A summary is given of the measurement procedures needed for characterizing all the system elements contained in this measurement model, including a description of a new pulse-echo method for obtaining the sensitivity and impedance of an ultrasonic transducer. It is demonstrated that these models and measurement procedures can be combined to accurately simulate the measured voltage of a pulseecho immersion system.

16

Gerhardt, J., und H. J. Schlaak. „Sinusoidal vibration measurements using optimal measurement intervals“. Measurement 34, Nr. 2 (September 2003): 133–41. http://dx.doi.org/10.1016/s0263-2241(03)00030-7.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

17

Levin, S. F. „Providing unified measurements in calibrating measurement sensors“. Measurement Techniques 49, Nr. 7 (Juli 2006): 639–47. http://dx.doi.org/10.1007/s11018-006-0162-0.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

18

Emms, Grant, und Tony Walther. „Flanking Transmission Measurements: Part 1- Measurement Techniques“. Building Acoustics 17, Nr. 1 (Januar 2010): 15–33. http://dx.doi.org/10.1260/1351-010x.17.1.15.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

19

Morrison, Malcolm. „Measurement - Which Measurement?“ Journal of Orthopaedic Medicine 29, Nr. 1 (Januar 2007): 9. http://dx.doi.org/10.1080/1355297x.2007.11736310.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

20

Angevine, Peter D., und Michael G. Kaiser. „RADIOGRAPHIC MEASUREMENT TECHNIQUES“. Neurosurgery 63, suppl_3 (01.09.2008): A40—A45. http://dx.doi.org/10.1227/01.neu.0000320425.55569.21.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

ABSTRACT THE EVALUATION AND treatment of spinal deformities begins with the accurate measurement of appropriate spinal parameters. The surgeon must ensure that the patient is positioned properly for all necessary x-ray scans and that the proper studies are completed. The relevant measurements must be identified and recorded for each study. Understanding the proper measurement techniques will increase the accuracy and reliability of the measurements. From these precise measurements the surgeon can begin to determine key characteristics of the deformity and develop an appropriate treatment plan.

21

Matsuo, Noboru, und Peter Maimon Ross. „Accurate measurement of psoralen-crosslinked DNA: Direct biochemical measurements and indirect measurement by hybridization“. Archives of Biochemistry and Biophysics 266, Nr. 2 (November 1988): 351–68. http://dx.doi.org/10.1016/0003-9861(88)90267-6.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

22

Unsal, Bulent, Dimosthenis Trimis und Franz Durst. „On-line Instantaneous Mass Flow Rate Measurements Through Injection Nozzles of Internal Combustion Engines(Measurement)“. Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2005 (2005): 653–58. http://dx.doi.org/10.1299/jsmeicjwsf.2005.653.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

23

Varney, Esther J., Ashley M. Van Drunen, Emily F. Moore, Kristen Carlin und Karen Thomas. „Blood Pressure Measurement Error in Children: Lessons in Measurement Reliability“. Journal of Nursing Measurement 27, Nr. 1 (01.04.2019): 114–25. http://dx.doi.org/10.1891/1061-3749.27.1.114.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Background and PurposeBlood pressure measurement represents the pressure exerted during heart ejection and filling. There are several ways to measure blood pressure and a valid measure is essential. The purpose of this study was to evaluate the approach to noninvasive blood pressure measurement in children.MethodsBlood pressure measurements were taken using the automatic Phillips MP30 monitor and compared against Welch Allyn blood pressure cuffs with Medline manual sphygmomanometers.ResultsA total of 492 measurements were taken on 82 subjects, and they demonstrated comparability between automatic and manual devices.ConclusionsAlthough our study indicated acceptable agreement between automatic and manual blood pressure measurement, it also revealed measurement error remains a concern, with sample size, study protocol, training, and environment all playing a role.

24

Michalkova, Lucia, und Katarina Frajtova Michalikova. „Credit risk measurement“. New Trends and Issues Proceedings on Humanities and Social Sciences 3, Nr. 4 (22.03.2017): 168–74. http://dx.doi.org/10.18844/gjhss.v3i4.1562.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

25

ONO, Yuichi. „OS7-17 Stress Measurement Using EBSD Analysis of Grown Grains in Electrodeposited Nickel Foil(Stress and strain measurement V,OS7 Stress and strain measurement,MEASUREMENT METHODS)“. Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2015.14 (2015): 108. http://dx.doi.org/10.1299/jsmeatem.2015.14.108.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

26

Otrusinová, Lenka, L. Čepová und Lenka Petřkovská. „Measurement of Deviation of Roundnes“. Technological Engineering 10, Nr. 1 (01.12.2013): 21–24. http://dx.doi.org/10.2478/teen-2013-0006.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Abstract For the measurement of roundness deviations are used different measuring methods and measuring Instruments from universal to high-precision measuring Instruments. Recently, optical measurement Instruments have irreplaceable role and get to the forefront due simpler process of measurement, accelerate measuring and large possibility to storage obtained data. Nowadays more and more successful optical measurements above touch measurement, but touch measurement still has an important role in companies. Therefore, in the experiment were measured the deviations of the roundness on devices measuring by touch method, and by the optical devices. The values of these measurements allowed their comparison and stastical evaluation.

27

Fischer, Andreas. „Limiting Uncertainty Relations in Laser-Based Measurements of Position and Velocity Due to Quantum Shot Noise“. Entropy 21, Nr. 3 (08.03.2019): 264. http://dx.doi.org/10.3390/e21030264.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

With the ongoing progress of optoelectronic components, laser-based measurement systems allow measurements of position as well as displacement, strain and velocity with unbeatable speed and low measurement uncertainty. The performance limit is often studied for a single measurement setup, but a fundamental comparison of different measurement principles with respect to the ultimate limit due to quantum shot noise is rare. For this purpose, the Cramér-Rao bound is described as a universal information theoretic tool to calculate the minimal achievable measurement uncertainty for different measurement techniques, and a review of the respective lower bounds for laser-based measurements of position, displacement, strain and velocity at particles and surfaces is presented. As a result, the calculated Cramér-Rao bounds of different measurement principles have similar forms for each measurand including an indirect proportionality with respect to the number of photons and, in case of the position measurement for instance, the wave number squared. Furthermore, an uncertainty principle between the position uncertainty and the wave vector uncertainty was identified, i.e., the measurement uncertainty is minimized by maximizing the wave vector uncertainty. Additionally, physically complementary measurement approaches such as interferometry and time-of-flight positions measurements as well as time-of-flight and Doppler particle velocity measurements are shown to attain the same fundamental limit. Since most of the laser-based measurements perform similar with respect to the quantum shot noise, the realized measurement systems behave differently only due to the available optoelectronic components for the concrete measurement task.

28

Li, Guoli, Jinsong Shen, Edward Smith und Chetna Patel. „Development of a Manual Measurement Device for Measuring Hallux Valgus Angle in Patients with Hallux Valgus“. International Journal of Environmental Research and Public Health 19, Nr. 15 (26.07.2022): 9108. http://dx.doi.org/10.3390/ijerph19159108.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Background: Hallux valgus (HV) is one of the most common forefoot deformities, and its prevalence increases with age. HV has been associated with poor foot function, difficulty in fitting footwear and poor health-related quality of life. The aims of this study were to design and develop an easy-to-use measurement device for measuring hallux valgus angle (HVA) in patients with HV and to assess the measurement reliability of the newly designed measurement device. Methods: A manual measurement device for measuring HVA was designed and developed to test on patients with HV. Two measuring methods, i.e., test–retest and intra-observer measurements, were used to evaluate the repeatability and reliability of the newly designed measurement device. In the test–retest measurements, a total of 42 feet from 26 patients with HV were repeatedly measured by the same researcher using the manual measurement device every 3 weeks over a period of 12 months. The measurement reliability of the newly designed measurement device was analysed based on the collected HVA data. In the intra-observer measurements, a total of 22 feet from the same group of HV patients were measured by the same researcher using the manual measurement device and by a consultant using X-ray measurement for comparison. The intraclass correlation coefficient (ICC) was used to determine the correlation of measurements between the manual measurement device and X-ray measurement. Results: The mean of the difference between the two repeat measurements of HVA using the newly designed manual device was 0.62°, and the average of ICC was 0.995, which indicates excellent reliability. The ICC between X-ray and the average of twice-repeated manual measurements was 0.868, with 95% CI (0.649, 0.947) (p = 0.000). When the relationship in HVA between X-ray measurement and manual measurement using the new device was regressed as a linear relationship, the regression equation was y = 1.13x − 4.76 (R2 = 0.70). Conclusions: The newly designed measurement device is easy to use, with low-cost and excellent reliability for HVA measurement, with the potential for use in clinical practice.

29

Senanayake, Muditha, Amar Raheja und Yuhan Zhang. „Automated human body measurement extraction“. International Journal of Clothing Science and Technology 30, Nr. 2 (16.04.2018): 175–94. http://dx.doi.org/10.1108/ijcst-01-2017-0002.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

PurposeThe purpose of this paper is to develop an automated human body measurement extraction system using simple inexpensive equipment with minimum requirement of human assistance. This research further leads to the comparison of extracted measurements to established methods to analyze the error. The extracted measurements can be used to assist the production of custom-fit apparel. This is an effort to reduce the cost of expensive 3-D body scanners and to make the system available to the user at home.Design/methodology/approachA single camera body measurement system is proposed, implemented, and pilot tested. This system involves a personal computer and a webcam operating within a space of controlled lighting. The system will take two images of the user, extract body silhouettes, and perform measurement extraction. The camera is automatically calibrated using the software each time of scanning considering the scanning space. The user will select a front view and a side view among the images captured, and specify the height. In this pilot study, 31 subjects were recruited and the accuracy of 8 human body measurements were compared with the manual measurements and measurements extracted from a commercial 3-D body scanner.FindingsThe system achieved reasonable measurement performance within 10 percent accuracy for seven out of the eight measurements, while four out of eight parameters obtained a performance similar to the commercial scanner. It is proved that human body measurement extraction can be done using inexpensive equipment to obtain reasonable results.Originality/valueThis study is aimed at developing a proof-of-concept for inexpensive body scanning system, with an effort to benchmark measurement accuracy, available to an average user providing the ability to acquire self-body measurements to be used to purchase custom-fit apparel. This system can potentially boost the customization of apparel and revolutionize online shopping of custom-fit apparel.

30

Bezdíček, Vladimír, Rostislav Dandoš, Miroslav Konečný, Juraj Kotrbanec, Tomáš Král und Andrea Wlochová. „ORIENTATION MEASUREMENT WITH GYROTHEODOLITE“. Geodesy and cartography 44, Nr. 3 (16.10.2018): 100–105. http://dx.doi.org/10.3846/gac.2018.2683.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

The article deals with the principle of using gyrotheodolite in connection and orientation measurements. It describes orientation measurements with gyrotheodolite, provides basic information about the device and explains how it works. The first part describes gyrotheodolite and methods of determining astronomical true north. The workflow for measurement and subsequent data processing is described below. In the second part, two orientation measurements are described and processed. Finally, the accuracy achieved and the possibility to use the device for activities other than mine measurement are assessed.

31

Koga, Harumichi, Katsuhiko Taki und Ayano Masugi. „Efficient Measurement Method: Development of a System Using Measurement Templates for an Orthodontic Measurement Project“. Software 2, Nr. 2 (12.05.2023): 276–91. http://dx.doi.org/10.3390/software2020013.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

We have developed a new system for measuring dental, gnathic, and facial areas with cephalogram-equivalent images created from computed tomographic imaging data. An advantage of this collaborative system is that a measurement template and automated processing are used. First, experienced orthodontists were provided with the measurement templates; they then moved the measurement markers to the specified landmarks on the cephalogram in the template. Subsequently, the program automatically detected the coordinates of the markers and calculated the distance between those coordinates. The appropriate use of this system leads to highly accurate results in large quantities of measurements in a short time by means of both manual and automatic processing. The system was developed to contribute to worldwide research into dental and craniofacial measurements; the research involved 500 patients, and the system worked successfully.

32

Norin, Veniamin. „Statistical processing of multiple measurements results“. E3S Web of Conferences 389 (2023): 07004. http://dx.doi.org/10.1051/e3sconf/202338907004.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

The product quality is determined by improvements of equipment, technologies, and production arrangement, which directly depends on the accuracy of measurement information. To achieve high measurement accuracy, it is reasonable to automate measurement processes. In case of automation, some functions are performed by equipment computer programs. The processing of direct comprehensive measurements is a complicated process including multiple algorithms of computation and various hypothesis tests. Taking into account the complexity and duration of statistical processing of results of multiple measurements, this paper is intended to develop a software measurement suite to process direct multiple measurements. The software measurement suite is a number of tools and software programs operating together to accomplish the tasks related with acquisition of required parameters and measurement results. To achieve this goal, it was required to address the following issues: implementation of the advanced measurement technologies into the developed software measurement suite; using wireless transmission of observation findings; ensuring compatibility of the developed software with the proprietary software of the used measurement instruments; improving the quality of measurements; improving the quality of processing measurement results by minimising the human factor effects on the processing quality; minimising the time spend for processing of the obtained measurement results.

33

Magdziak, Marek. „Selection of the Best Model of Distribution of Measurement Points in Contact Coordinate Measurements of Free-Form Surfaces of Products“. Sensors 19, Nr. 24 (04.12.2019): 5346. http://dx.doi.org/10.3390/s19245346.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

The article presents a new method for determining the distribution of measurement points, which can be used in the case of contact coordinate measurements of curvilinear surfaces of products. The developed method is based on multi-criteria decision analysis. In the case of the new method, the selection of the distribution of measurement points on free-form surfaces is carried out based on the analysis of five different criteria. The selection of the best model of the distribution of measurement points results from the accuracy of coordinate measurements, the time needed to complete measurement tasks, the number of measurement points, the accuracy of the substitute surface representing the measured free-form surface and the area where measurement points are located. The purpose of using the developed method of the distribution of measurement points is to increase the performance of coordinate measurements primarily by increasing the automation of strategy planning of measurements of curvilinear surfaces and improving the accuracy of measurements of free-form surfaces of products. The new method takes into account various aspects of coordinate measurements to determine the final model of the distribution of measurement points on measured surfaces of products, thereby increasing the probability of the proper determination (i.e., identifying the highest deviations of a product) of the location of measurement points on the surfaces of a measured object. The paper presents an example of the application of the created method, which concerns the selection of the best model of the distribution of measurement points on a selected free-form surface. This example is based on, among others, the results of experimental investigations, which were carried out by using the ACCURA II coordinate measuring machine equipped with the VAST XXT measuring probe and the Calypso measurement software. The results of investigations indicate a significant reduction in time of coordinate measurements of products when using the new method for determining the distribution of measurement points. However, shortening the time of coordinate measurements does not reduce their accuracy.

34

Pillarz, Marc, Axel von Freyberg, Dirk Stöbener und Andreas Fischer. „Gear Shape Measurement Potential of Laser Triangulation and Confocal-Chromatic Distance Sensors“. Sensors 21, Nr. 3 (30.01.2021): 937. http://dx.doi.org/10.3390/s21030937.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

The demand for extensive gear shape measurements with single-digit µm uncertainty is growing. Tactile standard gear tests are precise but limited in speed. Recently, faster optical gear shape measurement systems have been examined. Optical gear shape measurements are challenging due to potential deviation sources such as the tilt angles between the surface normal and the sensor axis, the varying surface curvature, and the surface properties. Currently, the full potential of optical gear shape measurement systems is not known. Therefore, laser triangulation and confocal-chromatic gear shape measurements using a lateral scanning position measurement approach are studied. As a result of tooth flank standard measurements, random effects due to surface properties are identified to primarily dominate the achievable gear shape measurement uncertainty. The standard measurement uncertainty with the studied triangulation sensor amounts to >10 µm, which does not meet the requirements. The standard measurement uncertainty with the confocal-chromatic sensor is <6.5 µm. Furthermore, measurements on a spur gear show that multiple reflections do not influence the measurement uncertainty when measuring with the lateral scanning position measurement approach. Although commercial optical sensors are not designed for optical gear shape measurements, standard uncertainties of <10 µm are achievable for example with the applied confocal-chromatic sensor, which indicates the further potential for optical gear shape measurements.

35

Puzovic, Slavisa, Branko Koprivica, Alenka Milovanovic und Milic Djekic. „Analysis of measurement error in direct and transformer-operated measurement systems for electric energy and maximum power measurement“. Facta universitatis - series: Electronics and Energetics 27, Nr. 3 (2014): 389–98. http://dx.doi.org/10.2298/fuee1403389p.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Analysis of error in measuring electric energy and maximum power within direct and half-indirect measurement system at the voltage of 0.4kV is presented in the paper. The analysis involved all the elements of the measurement system, i.e. calibration and testing of the transformer-operated and direct digital energy meters and measuring current transformers. This equipment was also used for measurements in the transformer substation aiming at error analysis at measurements made under the real conditions. The results obtained show significant negative measurement error introduced by the energy meters under overload conditions. Energy meters have lower values of both the consumed electric energy and maximum power in this operating mode, which can be interpreted as a loss.

36

Kamimoto, Takeyuki, Masanori Kobayashi und Mikiya Hamano. „Dynamic Measurements of Diesel Soot Particles by Extinction and Scattering Methods(Measurement, PM in Exhaust I)“. Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines 2004.6 (2004): 327–33. http://dx.doi.org/10.1299/jmsesdm.2004.6.327.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

37

Schroeder, Stefan, Sebastian Jaeger, Jonas Schwer, Andreas Martin Seitz, Isabell Hamann, Michael Werner, Christoph Thorwaechter et al. „Accuracy measurement of different marker based motion analysis systems for biomechanical applications: A round robin study“. PLOS ONE 17, Nr. 7 (11.07.2022): e0271349. http://dx.doi.org/10.1371/journal.pone.0271349.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Introduction Multiple camera systems are widely used for 3D-motion analysis. Due to increasing accuracies these camera systems gained interest in biomechanical research areas, where high precision measurements are desirable. In the current study different measurement systems were compared regarding their measurement accuracy. Materials and methods Translational and rotational accuracy measurements as well as the zero offset measurements of seven different measurement systems were performed using two reference devices and two different evaluation algorithms. All measurements were performed in the same room with constant temperature at the same laboratory. Equal positions were measured with the systems according to a standardized protocol. Measurement errors were determined and compared. Results The highest measurement errors were seen for a measurement system using active ultrasonic markers, followed by another active marker measurement system (infrared) having measurement errors up to several hundred micrometers. The highest accuracies were achieved by three stereo camera systems, using passive 2D marker points having errors typically below 20 μm. Conclusions This study can help to better assess the results obtained with different measurement systems. With the focus on the measurement accuracy, only one aspect in the selection of a system was considered. Depending on the requirements of the user, other factors like measurement frequency, the maximum analyzable volume, the marker type or the costs are important factors as well.

38

Moffat, R. J. „The measurement chain and validation of experimental measurements“. ACTA IMEKO 3, Nr. 1 (07.05.2014): 16. http://dx.doi.org/10.21014/acta_imeko.v3i1.196.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

<p>This is a reissue of a paper which appeared in ACTA IMEKO 1973, Proceedings of the 6th Congress of the International Measurement Confederation, "Measurement and instrumentation", 17.-23.6.1973, Dresden, vol. 1, pp. 45-53.</p><p>The paper witnesses the sophisticated discussion that, well before the publication of the Guide to the Expression of Uncertainty in Measurement (GUM), was active in the measurement science community around the subject of error and uncertainty, and its consequences on the structure of the measuring process and the way it is performed.</p>

39

Nonaka, Kyoya, Tadashi Koshizuka und Kunihiko Hidaka. „Current Measurement at Prospective Transient Recovery Voltage Measurements“. IEEJ Transactions on Power and Energy 140, Nr. 9 (01.09.2020): 700–704. http://dx.doi.org/10.1541/ieejpes.140.700.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

40

Vulevic, Branislav, Cedomir Belic und Luka Perazic. „Measurement uncertainty in broadband radiofrequency radiation level measurements“. Nuclear Technology and Radiation Protection 29, Nr. 1 (2014): 53–57. http://dx.doi.org/10.2298/ntrp1401053v.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

For the evaluation of measurement uncertainty in the measurement of broadband radio frequency radiation, in this paper we propose a new approach based on the experience of the authors of the paper with measurements of radiofrequency electric field levels conducted in residential areas of Belgrade and over 35 municipalities in Serbia. The main objective of the paper is to present practical solutions in the evaluation of broadband measurement uncertainty for the in-situ RF radiation levels.

41

Gustavsen, Bjorn. „Eliminating Measurement Cable Effects From Transformer Admittance Measurements“. IEEE Transactions on Power Delivery 31, Nr. 4 (August 2016): 1609–17. http://dx.doi.org/10.1109/tpwrd.2016.2536704.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

42

Johannsen, K. G. „Measurement of satellite communication parameters: satellite antenna measurements“. IEEE Transactions on Instrumentation and Measurement 37, Nr. 2 (Juni 1988): 285–91. http://dx.doi.org/10.1109/19.6068.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

43

Okamoto, T., und T. Tanaka. „Novel Partial Discharge Measurement Computer-Aided Measuremnet Systems“. IEEE Transactions on Electrical Insulation EI-21, Nr. 6 (Dezember 1986): 1015–19. http://dx.doi.org/10.1109/tei.1986.349017.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

44

Zheng, Huaixiu, Arpit Dua und Liang Jiang. „Measurement-only topological quantum computation without forced measurements“. New Journal of Physics 18, Nr. 12 (31.07.2017): 123027. http://dx.doi.org/10.1088/1367-2630/aa50bb.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

45

Leitnaker, Mary G. „COMPARING MEASUREMENT PROCESSES: IN-LINE VERSUS ANALYTICAL MEASUREMENTS“. Quality Engineering 13, Nr. 2 (Dezember 2000): 293–98. http://dx.doi.org/10.1080/08982110108918652.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

46

Wittmann, R. C., B. K. Alpert und M. H. Francis. „Near-field antenna measurements using nonideal measurement locations“. IEEE Transactions on Antennas and Propagation 46, Nr. 5 (Mai 1998): 716–22. http://dx.doi.org/10.1109/8.668916.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

47

Bernstein, Johannes, und Albert Weckenmann. „Measurement uncertainty evaluation of optical multi-sensor-measurements“. Measurement 45, Nr. 10 (Dezember 2012): 2309–20. http://dx.doi.org/10.1016/j.measurement.2011.10.032.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

48

Tsvetkov, �. I. „Scaling errors in measurements by processor measurement devices“. Measurement Techniques 33, Nr. 4 (April 1990): 291–94. http://dx.doi.org/10.1007/bf00867807.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

49

GUO, YU. „MEASUREMENT-INDUCED NONLOCALITY OVER TWO-SIDED PROJECTIVE MEASUREMENTS“. International Journal of Modern Physics B 27, Nr. 16 (07.06.2013): 1350067. http://dx.doi.org/10.1142/s0217979213500677.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Annotation:

Measurement-induced nonlocality (MIN), introduced by Luo and Fu [Phys. Rev. Lett.106, 120401 (2011)], is a kind of quantum correlation which is different from entanglement and quantum discord (QD). MIN is defined over one-sided projective measurements. In this paper, we introduce a MIN over two-sided projective measurements. The nullity of this two-sided MIN is characterized, a formula for calculating two-sided MIN for pure states is proposed, and a lower bound of (two-sided) MIN for maximally entangled mixed states is given. In addition, we find that (two-sided) MIN is not continuous. Both finite- and infinite-dimensional cases are considered.

50

Niemiec, Jan M., Paul C. Shang und Stephan Schreppler. „Intermediate scale measurement system for underwater acoustic measurements“. Journal of the Acoustical Society of America 117, Nr. 4 (April 2005): 2481. http://dx.doi.org/10.1121/1.4787686.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen