Measurement of the Current Transfer Function for Power Transducers of Current to Voltage; Applied Mechanics and Materials; Vol. 756 : Mechanical Engineering, Automation and Control Systems (MEACS2014)
| Parent link: | Applied Mechanics and Materials: Scientific Journal Vol. 756 : Mechanical Engineering, Automation and Control Systems (MEACS2014).— 2015.— [P. 615-621] |
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| Tác giả chính: | |
| Tác giả của công ty: | |
| Tác giả khác: | , |
| Tóm tắt: | Title screen Transducers of current to voltage, such as current shunts are widely used in control systems for the mechanical engineering. The shunt is required to determine the value of its resistance on DC and AC currents to determine the transfer ratio error in the wide frequency band in process of verification or calibration. Well-known methods for resistance measuring (by Thompson' double bridge; magnetic comparator, compensation technique, etc.) require a commerce resistance and difficult to implement for shunts with resistance less than 0.1 Ohms. The paper describes a procedure for measuring the complex impedance of transfer ratio of current shunts in the frequency band using the lock-in amplifier with the differential input. The experimental results of the proposed procedure for coaxial shunt with nominal resistance at DC 750 uOhm and 160 uOhm are described. Режим доступа: по договору с организацией-держателем ресурса |
| Ngôn ngữ: | Tiếng Anh |
| Được phát hành: |
2015
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| Loạt: | Control and Automation Systems, Manufacturing Applications |
| Những chủ đề: | |
| Truy cập trực tuyến: | http://dx.doi.org/10.4028/www.scientific.net/AMM.756.615 |
| Định dạng: | Điện tử Chương của sách |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641410 |
| Tóm tắt: | Title screen Transducers of current to voltage, such as current shunts are widely used in control systems for the mechanical engineering. The shunt is required to determine the value of its resistance on DC and AC currents to determine the transfer ratio error in the wide frequency band in process of verification or calibration. Well-known methods for resistance measuring (by Thompson' double bridge; magnetic comparator, compensation technique, etc.) require a commerce resistance and difficult to implement for shunts with resistance less than 0.1 Ohms. The paper describes a procedure for measuring the complex impedance of transfer ratio of current shunts in the frequency band using the lock-in amplifier with the differential input. The experimental results of the proposed procedure for coaxial shunt with nominal resistance at DC 750 uOhm and 160 uOhm are described. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.4028/www.scientific.net/AMM.756.615 |