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Journal articles on the topic 'Optical equipment'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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1

Savage, Neil. "Optical polishing equipment." Nature Photonics 4, no. 12 (December 2010): 880–81. http://dx.doi.org/10.1038/nphoton.2010.273.

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2

INAGAKI, YUJI. "Optical information processing equipment." Review of Laser Engineering 21, no. 1 (1993): 178–81. http://dx.doi.org/10.2184/lsj.21.178.

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3

Zhao, Wei Ling, Can Zhao, Jun Ting Cheng, and Hai Yan Yue. "Accuracy Verification Method about Optical Three-Dimensional Measuring Instrument." Advanced Materials Research 142 (October 2010): 204–8. http://dx.doi.org/10.4028/www.scientific.net/amr.142.204.

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Three-dimensional measuring instrument has high precision, high efficiency, convenience, and the stability characteristics, and is widely used in many manufacturing industries. In the process of equipment purchases and transportation, there is the need for precision test equipment. Reference to the VDI/VDE 2634 standard developed by German and equipments of other manufacturers, make reasonable accuracy test method, according to measurement data maximum error, minimum error, average error, standard deviation concept, calculate the measurement comprehensive system error, and calculate its accuracy for foreign equipment.
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4

TAKAYAMA, Kazuyoshi. "Flow visualization equipment for optical measurements." JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN 5, no. 16 (1985): 23–30. http://dx.doi.org/10.3154/jvs1981.5.23.

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5

Belyaev, B. I., L. V. Katkovskyi, Yu A. Krot, A. V. Rogovets, V. A. Sosenko, and A. D. Khomitsevich. "Optical equipment for the space experiment «Diagnostics»." Kosmìčna nauka ì tehnologìâ 16, no. 2 (March 30, 2010): 35–40. http://dx.doi.org/10.15407/knit2010.02.035.

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6

Nordin, R. A., W. R. Holland, and M. A. Shahid. "Advanced optical interconnection technology in switching equipment." Journal of Lightwave Technology 13, no. 6 (June 1995): 987–94. http://dx.doi.org/10.1109/50.390216.

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7

Giglio, M., G. Martines, G. Mura, S. Podda, and M. Vanzi. "An automated lifetest equipment for optical emitters." Microelectronics Reliability 42, no. 9-11 (September 2002): 1311–15. http://dx.doi.org/10.1016/s0026-2714(02)00141-5.

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8

Tang, Zhifei, Junshi Gao, Tianpu Yang, Dongmei Liu, and Guangchong Dai. "Smart OLT equipment of optical access network." Optoelectronics Letters 19, no. 3 (March 2023): 159–63. http://dx.doi.org/10.1007/s11801-023-2146-6.

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9

Zhekov, Zhivko. "METHOD AND SPECTROPHOTOMETRIC EQUIPMENT FOR WATER RESEARCH." Journal scientific and applied research 5, no. 1 (May 5, 2014): 70–75. http://dx.doi.org/10.46687/jsar.v5i1.111.

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Modem measurement equipment must feature high measurement precision, swift operation, high sensitivity and reliability. The designing of such equipment includes coordination of the operation of optical, mechanical, and electronic assemblies and units, introduction of microprocessor systems and communication interface equipment etc. Therefore, the design, implementation, calibration etc. requirements for such equipment feature an ever growing variety strictness.
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10

Liu, Ming Bo, Guang Shun Zhang, Hong Chao Gao, and Qi Li. "The Design and Implementation of Testing System for Network Equipment Configuration Status and Light Power." Advanced Materials Research 950 (June 2014): 155–59. http://dx.doi.org/10.4028/www.scientific.net/amr.950.155.

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This article explains the design idea and implementation method of network equipment configuration status review and optical power detection system by remotely logging on network equipment, gives the comparative analysis result of the two methods of obtaining network equipment parameters, detailed introduces the design method and implementation process to get parameters of network equipments by remotely telnet logging on. System is tested in the practical application. Testing shows that system works stably, has good Real-Time property and high data precision. The system satisfies the requirement and is provided with some popularization and applied value.
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11

Ciupe, Valentin, Erwin Christian Lovasz, and Corina Mihaela Gruescu. "High Quality Document Digitization Equipment." Applied Mechanics and Materials 162 (March 2012): 589–96. http://dx.doi.org/10.4028/www.scientific.net/amm.162.589.

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The paper describes an equipment specialized in digitization of single documents, journal-type documents and books. The equipment is designed and assembled at Politehnica University of Timisoara and works in a station developed within the European project thinkMOTION. The optical calculus aimed optimal illumination of two symmetrical areas and high quality of captured images. The object of scanning is printed matter, which exists exclusively in paper form and originates from different periods of scientific evolution. The mechanical design was based on criteria such as: flatness of active surfaces, quick placement and removal of the original document, mechanical raw focusing facilities, adjustment regarding the thickness of the original document and finding constructive solutions so that no damage is inflicted upon the original document, which may be one of a kind and, hence, historically very valuable. An original software was created in order to control the scanning process, to organize files and folders, which stock captured images in different stages of processing. The effective efficiency of the equipment is 10 12 pages/minute.
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12

DivyaJha, Bimlendu Shahi, Suresh D, and Dushyanth N D. "ROLE OF EQUIPMENT MANAGEMENT IN OPTICAL TRANSPORT NETWORK." International Journal of Research -GRANTHAALAYAH 5, no. 4RACEEE (April 30, 2017): 155–60. http://dx.doi.org/10.29121/granthaalayah.v5.i4raceee.2017.3338.

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The ever-developing interest of present day society for information with enhanced execution over longer separations have made the system complex in terms of architecture, technologies, Network Elements, communication between Network Elements, security and signaling control. Equipment Management as a segment of Network Management System gives administrators the capacity to control general operation of the NEs, superintend interaction among NEs and to upper layer administration framework, thus automating the task of managing complex network. This paper presents the role of Equipment Management in Optical Transport Network and some of its challenges.
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13

Li, Shen, Junyu Wei, Shaojing Su, and Zhen Zuo. "Design and Implementation of Optical Fiber Test Equipment." Optics and Photonics Journal 10, no. 06 (2020): 105–10. http://dx.doi.org/10.4236/opj.2020.106010.

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14

Mennens, J., L. Van Tichelen, G. Francois, and J. J. Engelen. "Optical recognition of Braille writing using standard equipment." IEEE Transactions on Rehabilitation Engineering 2, no. 4 (1994): 207–12. http://dx.doi.org/10.1109/86.340878.

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15

Yang, Zhi Qiang, Zhong Da Guo, and Wei Guo Liu. "Clitella Magnetorheological Finishing Method and Equipment." Key Engineering Materials 552 (May 2013): 227–33. http://dx.doi.org/10.4028/www.scientific.net/kem.552.227.

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Clitella magnetorheological finishing is a processing ultra-smooth surface method, which has high processing efficiency and relatively low precision machine tool mechanical structure. This paper introduced processing methods that use a clitella magnetorheological finishing technology to achieve an arbitrary radius of curvature of the spherical optical parts. The paper design the device and use this device to process experiments. The experimental results have shown that this method can process optical parts.
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16

Lai, Wen Qin, Zhi Hua Yang, and Chun Yu Liu. "The Power Cable Online Monitor and Protect in Application System." Applied Mechanics and Materials 742 (March 2015): 221–25. http://dx.doi.org/10.4028/www.scientific.net/amm.742.221.

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】 The solution of power optical cable online monitoring and cable protection equipment roasted the perfect combination of applications,which can be solved for fiber optic cable line protection, fault location and reduce equipment loss, improve security. Through optical protection equipment improvement, it can increase light protected internal OTDR monitoring channel to achieve the protection of optical communication services and the safeguard of the route line monitoring standby position, and the loss from the original equipment involved 7dB down 3dB, which effectively improve safety and quality of electric power communication optical fiber communication network, and improve management of power optical fiber communication network.
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17

Iskandarov, U. U. "ANALYZES THE MEANING OF THE APPLICATION TESTING SOFTWARE OF THE FIBRE OPTICAL SYSTEMS." International Journal of Advance Scientific Research 02, no. 12 (December 1, 2022): 121–24. http://dx.doi.org/10.37547/ijasr-02-12-17.

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In this article, we analyze the testing processes of optical communication systems and their fibre test aspects. There is considered the meaning and functions of the software applications. Optical communication systems have their equipment, fibres, and software applications. They have to work, in coordination. Therefore testing of equipment and other parts is completed by software applications.
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18

XUE Dan, 薛丹. "Optical Equipment Subsystem Tentative Project Research for Passive UAV's Optical Auto-landing System." OME Information 28, no. 2 (2011): 7–11. http://dx.doi.org/10.3788/omei20112802.0007.

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19

Zhao, Ming. "Research on Maintenance Platform of Video Optical Detection." Applied Mechanics and Materials 733 (February 2015): 730–33. http://dx.doi.org/10.4028/www.scientific.net/amm.733.730.

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In avionics equipment maintenance, electronic equipment failure or mal function caused by PCB that happens frequently. Due to the complexity of large circuit network cross linking, it is hard to solve such a troubleshooting by point to point. Advanced avionics, such as GNS430, VHF155A, G1000 integrated avionics system are using SMT technology. Because of PCB’s greatly fine line and the ultra-fine pitch components, it is highly difficult for electronic equipment test. Video optical detection technology for PCB detection technology is developed rapidly in recent years. It gradually began to replace the original visual detection and electrometric method, and it has a high fault resolution.
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20

Koubek, Jan, Stepan Chladek, Jiri Sveda, and Ivan Divis. "OPTICAL EQUIPMENT FOR MEASURING DEFORMATION OF MACHINE TOOL COMPONENTS." MM Science Journal 2016, no. 02 (June 8, 2016): 907–11. http://dx.doi.org/10.17973/mmsj.2016_06_201612.

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21

WANG Su-hua, 王素华, 沈湘衡 SHEN Xiang-heng, and 叶露 YE Lu. "Calibration of contrast for adjustable contrast optical target equipment." Optics and Precision Engineering 20, no. 5 (2012): 949–56. http://dx.doi.org/10.3788/ope.20122005.0949.

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22

YAMAGUCHI, Tatsushi. "Application for Power Equipment of Optical Fiber Current Sensors." Review of Laser Engineering 41, no. 5 (2013): 320. http://dx.doi.org/10.2184/lsj.41.5_320.

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23

Holwill, Ian L., and Andy T. Martin. "Ultrasonic standing waves to enhance optical particle sizing equipment." Journal of the Acoustical Society of America 105, no. 2 (February 1999): 1076. http://dx.doi.org/10.1121/1.424510.

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24

Tae Young Kim, K. S. Suh, Jin Ho Nam, and T. Takada. "Acoustic monitoring of HV equipment with optical fiber sensors." IEEE Transactions on Dielectrics and Electrical Insulation 10, no. 2 (April 2003): 266–70. http://dx.doi.org/10.1109/tdei.2003.1194109.

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25

Barajas, C., J. de Vicente, J. Caja, P. Maresca, and E. Gómez. "Considerations to the hardness Brinell measurement using optical equipment." Procedia Manufacturing 13 (2017): 550–57. http://dx.doi.org/10.1016/j.promfg.2017.09.089.

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26

Montes-Robles, Roberto, Andy Hernández, Javier Ibáñez, Rafael Masot-Peris, Cristina de la Torre, Ramón Martínez-Máñez, Eduardo García-Breijo, and Rubén Fraile. "Design of a low-cost equipment for optical hyperthermia." Sensors and Actuators A: Physical 255 (March 2017): 61–70. http://dx.doi.org/10.1016/j.sna.2016.12.018.

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27

Tanabe, T., A. Ushirogawa, and M. Takashima. "Highly accurate measuring equipment for the optical connector ferrule." Measurement 4, no. 1 (January 1986): 23–27. http://dx.doi.org/10.1016/0263-2241(86)90025-4.

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28

Laborelli, Louis. "Equipment for the optical playback of analog phonographic records." Journal of the Acoustical Society of America 128, no. 3 (2010): 1560. http://dx.doi.org/10.1121/1.3490350.

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29

Kurganovich, A. M., V. A. Stasilovich, I. P. Shishkin, and A. P. Shkadarevich. "Stand Equipment and Test Methods of Modern Optical Sights." Devices and Methods of Measurements 13, no. 3 (October 24, 2022): 165–71. http://dx.doi.org/10.21122/2220-9506-2022-13-3-165-171.

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Manufacture of sights with high output characteristics is a prerequisite for achieving the necessary ac- curacy when shooting. The aim of the work was to analyze the influence of pancratic optical sights’ main parameters on their output performance characteristics.It is shown that in order to achieve the quality level of the world’s best samples, high image quality – no drop in contrast by no more than 30 % of the calculated value, careful manufacturing and control of both mechanical and optical parts, as well as components of the assembly units of products, the technological pro- cess of assembly and alignment is necessary.Bench equipment and test methods which made it possible significantly increase the level of serial pro- duction are described, also some characteristics of GS3-12×50, GS3-24×56, GS5-25×56 “NTC “LEMT” BelOMO” are presented.
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30

Lei, Bo, and Harry Hofmann. "Energy consumption and low power design of optical equipment." Bell Labs Technical Journal 15, no. 2 (August 23, 2010): 169–74. http://dx.doi.org/10.1002/bltj.20447.

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31

Lepore, Maria, and Ines Delfino. "Intralipid-Based Phantoms for the Development of New Optical Diagnostic Techniques." Open Biotechnology Journal 13, no. 1 (December 11, 2019): 163–72. http://dx.doi.org/10.2174/187407070190130163.

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Intralipid is a material widely employed for the preparation of phantoms for optical imaging and biophotonics applications in medical field. The development of new optical diagnostic equipment in these fields requires the use of well-designed phantoms with optical properties (including scattering and absorption) mimicking those of biological tissues in all the pre-clinical stages of investigations. For this reason, great research effort has been devoted to optically characterize Intralipid and at preparing optimal phantoms. In this short review, we summarize the principal physico-chemical characteristics of Intralipid and the main contributions in the assessment of its scattering and absorption properties. In addition, the most largely used Intralipid-based homogeneous and non-homogeneous phantoms are discussed. Even though other materials are available for the preparation of phantoms, the use of Intralipid still offers an inexpensive and easy-to-use method for preparing phantoms with finely tuned optical properties.
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32

Liu, Lu. "Research on a Fully Digital Simulation Training System for Power Communication EPON Equipment." Journal of Safety Science and Engineering 1, no. 2 (June 2024): 20–25. http://dx.doi.org/10.62517/jsse.202408204.

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With the continuous application of EPON (Ethernet Passive Optical Network) technology in the power communication network, communication operation and maintenance personnel urgently need to carry out equipment practical training and skill drills regularly. In response to the problems of high investment and maintenance costs, low training implementation efficiency, and difficulty in efficient practical exercises for equipment operation and fault handling in EPON training equipment, this article designs a solution for a fully digital EPON equipment simulation training system, and proposes simulation methods for software functions of EPON equipment such as OLT (Optical Line Terminal) and ONU (Optical Network Unit). It also proposes simulation methods for hardware appearance and interactive operation of the equipment, and further proposes a synchronization mechanism for software function and hardware feature simulation. The simulation training system developed based on this scheme not only comprehensively simulates the hardware interaction characteristics and communication logic characteristics of the equipment, but also has the ability to organize and implement large-scale, scenario based, and efficient skill training, fully supporting EPON equipment skill training and drills, and achieving rapid improvement of communication operation and maintenance personnel's skill level and work ability.
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33

He, Nailong, Yuning Zhang, Yishi Weng, Lan He, and Baoping Wang. "50.3: Main Optical Performance Measurement Method of Near‐Eye‐Display Device Based on Binocular Camera." SID Symposium Digest of Technical Papers 54, S1 (April 2023): 361–64. http://dx.doi.org/10.1002/sdtp.16304.

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Optical measurement of display equipment has always been the most important means to evaluate its performance, and AR/VR and other Near‐Eye‐Display (NED) is a new type of display equipment. In recent years, its optical performance measurement methods and measuring equipment have been introduced, but the operation is complicated, the cycle is long and the cost is expensive. Therefore, this paper designs a method of measuring the main optical performance parameters of near eye display device based on binocular camera. According to the optical correlation principle of the display device, the derivation modeling, system design and calibration experiments were carried out, so as to realize the convenient, rapid and low‐cost measurement of the main optical performance parameters of the NED device.
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34

Lan, Lintao, Fangwu Hua, Fang Fang, and Wei Jiang. "Active Compensation Technology for the Target Measurement Error of Two-Axis Electro-Optical Measurement Equipment." Sensors 24, no. 4 (February 9, 2024): 1133. http://dx.doi.org/10.3390/s24041133.

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For two-axis electro-optical measurement equipment, there are many error sources in parts manufacturing, assembly, sensors, calibration, and so on, which cause some random errors in the final measurement results of the target. In order to eliminate the random measurement error as much as possible and improve the measurement accuracy, an active compensation technique for target measurement error is proposed in this paper. Firstly, the error formation mechanism and error transfer model establishment of the two-axis electro-optical measurement equipment were studied, and based on that, three error compensation and correction methods were proposed: the least square (LS)-based error compensation method, adaptive Kalman filter(AKF)-based error correction method, and radial basis function neural network (RBFNN)-based error compensation method. According to the theoretical analysis and numerical simulation comparison, the proposed RBFNN-based error compensation method was identified as the optimal error compensation method, which can approximate the random error space surface more precisely, so that a more accurate error compensation value can be obtained, and in order to improve the measurement accuracy with higher precision. Finally, the experimental results proved that the proposed active compensation technology was valid in engineering applicability and could efficiently enhance the measurement accuracy of the two-axis electro-optical measurement equipment.
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35

Entz, Michael, D. Ryan King, and Steven Poelzing. "Design and validation of a tissue bath 3-D printed with PLA for optically mapping suspended whole heart preparations." American Journal of Physiology-Heart and Circulatory Physiology 313, no. 6 (December 1, 2017): H1190—H1198. http://dx.doi.org/10.1152/ajpheart.00150.2017.

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With the sudden increase in affordable manufacturing technologies, the relationship between experimentalists and the designing process for laboratory equipment is rapidly changing. While experimentalists are still dependent on engineers and manufacturers for precision electrical, mechanical, and optical equipment, it has become a realistic option for in house manufacturing of other laboratory equipment with less precise design requirements. This is possible due to decreasing costs and increasing functionality of desktop three-dimensional (3-D) printers and 3-D design software. With traditional manufacturing methods, iterative design processes are expensive and time consuming, and making more than one copy of a custom piece of equipment is prohibitive. Here, we provide an overview to design a tissue bath and stabilizer for a customizable, suspended, whole heart optical mapping apparatus that can be produced significantly faster and less expensive than conventional manufacturing techniques. This was accomplished through a series of design steps to prevent fluid leakage in the areas where the optical imaging glass was attached to the 3-D printed bath. A combination of an acetone dip along with adhesive was found to create a water tight bath. Optical mapping was used to quantify cardiac conduction velocity and action potential duration to compare 3-D printed baths to a bath that was designed and manufactured in a machine shop. Importantly, the manufacturing method did not significantly affect conduction, action potential duration, or contraction, suggesting that 3-D printed baths are equally effective for optical mapping experiments. NEW & NOTEWORTHY This article details three-dimensional printable equipment for use in suspended whole heart optical mapping experiments. This equipment is less expensive than conventional manufactured equipment as well as easily customizable to the experimentalist. The baths can be waterproofed using only a three-dimensional printer, acetone, a glass microscope slide, c-clamps, and adhesive.
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36

Yao, Hai, Guanyong Hu, and Xiaofei Wang. "Design of Amplifier Circuit of Optical Fiber Sensor and Its Application in Cloud Computing of Mechanical Vibration Fault." Journal of Nanoelectronics and Optoelectronics 18, no. 2 (February 1, 2023): 202–9. http://dx.doi.org/10.1166/jno.2023.3378.

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Photoelectric detection technology has been widely used in industry, agriculture, medicine, and other fields. The signal collected by photoelectric signal detection equipment is weak and vulnerable to noise interference. Therefore, a preamplifier circuit with good performance is needed to amplify the original signal effectively. Firstly, considering that a single-mode fiber coupler is more sensitive to the length of the coupling region, a coupled optical fiber vibration sensor is designed. Secondly, the appropriate operational amplifier (Op-amp) is chosen based on the photodetector. By listing and selecting the OPA656 Op-amp produced by TI Company, the basic current and voltage conversion circuit of photoelectric detection equipment is analyzed. In addition, a basic trans-impedance circuit with a phase compensation function is proposed and the calculation method of optimal phase compensation capacitance is derived. Finally, in the process of monitoring the vibration data of equipment, cloud computing technology (fuzzy C-means clustering algorithm+MapReduce model) is used for distributed processing of mechanical vibration data. In the test, the coupled optical fiber vibration sensor designed with an amplifier circuit and moving coil vibration sensor are placed on the ship equipment at the same time, and the rubber hammer is employed to hit the surface of the ship machinery. The test results of the two sensors are the same, which proves that the optical fiber sensor designed in this study meets the requirements of vibration measurement.
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37

Wang, Li Hui, Jian Sun, and Jian Fei Ji. "Optical Current Sensor Technology in Power System." Key Engineering Materials 562-565 (July 2013): 242–46. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.242.

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With power voltage and capacity improved greatly, power transmission system put a higher demand on reliability and safe operation of electrical equipments. Electromagnetic sensors and other conventional detection equipment can no longer meet the needs of the power system, and new sensing measurement techniques led to optical current and voltage sensing technology. As their unique advantages, optical current sensing technology is get in-depth study and attention, and gradually used in power system engineering applications. Combined with domestic and foreign research progress of optical current sensor, we analyzed the basic principles of the photoelectric sensing technology and problems faced in power system applications and key technologies. Focused on sensing characteristic differences of photoelectric sensors and electromagnetic sensor, we analyzed the effects of photoelectric sensor on protection, monitoring and control, measurement systems in data processing and data transmission, and study the corresponding key technology. Combined with the development of modern power system, we prospect optical current sensor sensing technology opportunities and challenges in smart grid.
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38

Кулиш, О. А. "PULSE SIGNAL LOSS ESTIMATION TECHNIQUE IN SWITCHING EQUIPMENT AUTHENTICATION SUBSYSTEM." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 1 (April 19, 2021): 68–73. http://dx.doi.org/10.36622/vstu.2021.17.1.010.

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Для аутентификации коммутаторов второго уровня можно использовать код аутентификации, переданный отправителем информации получателю с помощью модуля аутентификации, встроенного в коммутатор. Для формирования кода аутентификации используется оптический импульс, энергия которого равна энергии фотона. При передаче оптического импульса актуальной является оценка потерь энергии в оптических устройствах модуля аутентификации. Разработана методика оценки потерь оптического импульса на изгибах интегрально-оптических волноводов. Новая методика получена в результате модификации расчета потерь оптической энергии на изгибах волноводов для непрерывного лазерного излучения. Используется классическое моделирование распространения оптического импульса гауссовой формы, при этом для замены изогнутого волновода эквивалентным прямолинейным волноводом применяется метод конформного отображения. С помощью метода конформного отображения изменен профиль показателя преломления прямолинейного волновода и преобразовано волновое уравнение для электрического поля. В результате применения новой методики выведена формула для расчета отношения энергетической мощности оптического импульса к мощности постоянного оптического сигнала. На основе графика полученной зависимости сделан вывод, что для импульсов длительностью 10 фс потери оптического импульса сильно отличаются от потерь непрерывного лазерного излучения, для импульсов длительностью 100 фс это отличие несущественно. Таким образом, для коротких импульсов при расчете потерь оптического сигнала в устройствах подсистем аутентификации необходимо использовать методику решения волнового уравнения с процедурой конформного отображения To authenticate L2 switches, you can use the authentication code transmitted by the sender of information to the recipient using the authentication module built into the switch. To generate the authentication code, an optical pulse is used, the energy of which is equal to the photon energy. When transmitting an optical pulse, it is important to estimate the energy losses in the optical devices of the authentication module. A technique was developed for assessing the loss of an optical pulse at bends in integrated optical waveguides. The new technique was obtained as a result of a modification of the calculation of optical energy losses at bends of waveguides for continuous laser radiation. The classical simulation of the propagation of a Gaussian optical pulse was used, while the conformal mapping method was used to replace a curved waveguide with an equivalent rectilinear waveguide. Using the conformal mapping method, the profile of the refractive index of a rectilinear waveguide was changed and the wave equation for the electric field was transformed. As a result of applying the new technique, a formula was derived for calculating the ratio of the energy power of an optical pulse to the power of a constant optical signal. On the basis of the plot of the obtained dependence, it was concluded that for pulses with a duration of 10 fs, the loss of an optical pulse differs greatly from the loss of continuous laser radiation; for pulses with a duration of 100 fs, this difference is insignificant. Thus, for short pulses, when calculating the loss of an optical signal in devices of authentication subsystems, it is necessary to use the method for solving the wave equation with the conformal mapping procedure
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39

Chen, Ping, Jin Miao, Yin Gu, Fen Huang, Xinyang Zhou, Zhaoyun Leng, Jiefeng Wan, and Chen Li. "Comparative Study on Characteristics of Partial Discharge Optical Pulse and UHF Pulse in Switch Equipment." Journal of Physics: Conference Series 2136, no. 1 (December 1, 2021): 012024. http://dx.doi.org/10.1088/1742-6596/2136/1/012024.

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Abstract The article explores the performance of the new silicon photoelectric sensor in partial discharge detection, and compares the measured optical pulse with the traditional UHF pulse. Through optical and electrical synchronous partial discharge experiments, the article analyzes and discusses the detection performance, working characteristics and statistical characteristics of various sensors, and explores the advantages and feasibility of silicon photoelectric partial discharge sensors in actual discharge monitoring; In addition, the statistical performance of the two physical phenomena of partial light radiation and electromagnetic radiation was obtained through the analysis of optical and electrical synchronous monitoring data. Compared with UHF sensor, silicon photoelectric sensor under the optimal working voltage has a higher signal-to-noise ratio (SNR); Under the electromagnetic interference of the high-frequency motor, silicon photoelectric sensor exhibits better anti-electromagnetic interference ability; Discharge phase interval and characteristics reflected by the PRPD obtained by two detection methods maintain good consistency; Pulse repetition rate has the same trend with applied voltage, but statistical frequency of optical pulses obtained is higher than that of electromagnetic pulses because silicon photoelectric sensor has a higher SNR and single-photon sensitivity.
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40

Golygin, N. Kh, D. D. Komarov, and P. A. Cherepanov. "Checking And Calibrating the Modern Optical-And-Electronic Surveying Equipment." Geodesy and Cartography 870, no. 13 (December 31, 2012): 139–43. http://dx.doi.org/10.22389/0016-7126-2012-139-143.

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41

ZHANG Jian-guo, 张建国, and 刘元山 LIU Yuan-shan. "Development of Ultra-wide Bandwidth All-optical Sampling Oscilloscope Equipment." ACTA PHOTONICA SINICA 40, no. 4 (2011): 487–504. http://dx.doi.org/10.3788/gzxb20114004.0487.

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42

Lei, WANG, XU Rongguo, YIN Wanhong, JIANG Changlu, KANG Dengkui, and WANG Shengyun. "Testing method and equipment for residual polarization of optical lens." Journal of Applied Optics 42, no. 6 (2021): 1080–85. http://dx.doi.org/10.5768/jao202142.0603004.

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43

Loparev, V. A., S. S. Kiselev, and M. M. Shilin. "Features of machinery equipment for complex winding of optical fiber." Izvestiâ vysših učebnyh zavedenij. Priborostroenie 62, no. 1 (January 24, 2019): 78–85. http://dx.doi.org/10.17586/0021-3454-2019-62-1-78-85.

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Hong, Sung-Mok, Hee-Nam Kim, Jae-Heung Jo, Yun-Woo Lee, Hoi-Youn Lee, Ho-Soon Yang, In-Won Lee, and Jin-Ho Jung. "MTF Measuring Equipment of Optical System for LCD Substrate Inspection." Hankook Kwanghak Hoeji 18, no. 1 (February 25, 2007): 37–43. http://dx.doi.org/10.3807/hkh.2007.18.1.037.

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Yuan, C. M., and A. J. Strojwas. "Modeling optical equipment for wafer alignment and line-width measurement." IEEE Transactions on Semiconductor Manufacturing 4, no. 2 (May 1991): 99–110. http://dx.doi.org/10.1109/66.79722.

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Chen, Benjamin K., and Fouad A. Tobagi. "Optical network design to minimize switching and transceiver equipment costs." Optical Switching and Networking 6, no. 3 (July 2009): 171–80. http://dx.doi.org/10.1016/j.osn.2009.02.002.

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47

Houston, R. J. F., Y. A. B. D. Wickramasinghe, and P. Rolfe. "Synchronisation of pulsed optical measuring equipment to avoid signal interference." Medical & Biological Engineering & Computing 32, no. 3 (May 1994): 355–56. http://dx.doi.org/10.1007/bf02512538.

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48

Filonov, I. P., A. S. Kozeruk, Y. L. Malpica, M. I. Filonova, V. O. Kuznechik, and R. O. Dias Gonsalez. "MATHEMATICAL SIMULATION OF TECHNOLOGICAL EQUIPMENT FOR PROCESSING OF OPTICAL PARTS." Science & Technique 16, no. 5 (October 5, 2017): 367–75. http://dx.doi.org/10.21122/2227-1031-2017-16-5-367-375.

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Cai, Hubo, Osama Abudayyeh, Ikhlas Abdel-Qader, Upul Attanayake, Joseph Barbera, and Eyad Almaita. "Bridge Deck Load Testing Using Sensors and Optical Survey Equipment." Advances in Civil Engineering 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/493983.

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Bridges are under various loads and environmental impacts that cause them to lose their structural integrity. A significant number of bridges in US are either structurally deficient or functionally obsolete, requiring immediate attention. Nondestructive load testing is an effective approach to measure the structural response of a bridge under various loading conditions and to determine its structural integrity. This paper presents a load-test study that evaluated the response of a prefabricated bridge with full-depth precast deck panels in Michigan. This load-test program integrates optical surveying systems, a sensor network embedded in bridge decks, and surface deflection analysis. Its major contribution lies in the exploration of an embedded sensor network that was installed initially for long-term bridge monitoring in bridge load testing. Among a number of lessons learned, it is concluded that embedded sensor network has a great potential of providing an efficient and accurate approach for obtaining real-time equivalent static stresses under varying loading scenarios.
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Kornilov, Victor G., Vladimir M. Lipunov, Evgeny S. Gorbovskoy, Aleksander A. Belinski, Dmitry A. Kuvshinov, Natalia V. Tyurina, Nikolai I. Shatsky, et al. "Robotic optical telescopes global network MASTER II. Equipment, structure, algorithms." Experimental Astronomy 33, no. 1 (December 16, 2011): 173–96. http://dx.doi.org/10.1007/s10686-011-9280-z.

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