Results 261 to 270 of about 1,462,796 (292)
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[The development of a residual voltage tester].
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation, 2003The paper introduces the key points of the residual voetage tester's designing and its circuit frame diagram.
X H, Zhang, H F, Chen, W T, Jiang
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A Theoretical Investigation of the Residual Voltage on Electrophotographic Plates
Japanese Journal of Applied Physics, 1982A numerical analysis of the residual voltage on an electrophotographic plate is presented for a photodischarge process characterized by carrier trapping and release parameters. The physical model is described by a set of one-dimensional transport equations with appropriate initial and boundary conditions.
Masahiro Okuda +4 more
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[Development of residual voltage testing equipment].
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation, 2015For the existing measurement methods of residual voltage which can't turn the power off at peak voltage exactly and simultaneously display waveforms, a new residual voltage detection method is put forward in this paper. First, the zero point of the power supply is detected with zero cross detection circuit and is inputted to a single-chip microcomputer
Xiaohui, Zeng +4 more
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[Residual voltage of terms and test method].
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation, 2012This paper describes 5 national standards related to the term on the residual voltage with different indicators. Compare the advantages and disadvantages of various test methods. Finally, give suggestions on improving the testing method.
Qiutao, Jiang, Li, Cao
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Conference on Electrical Insulation and Dielectric Phenomena, 2003
An approach is developed which can be used to calculate the sparking and residual voltages V/sub s/ and V/sub r/, or the ratio between them, from the corner values V/sub p/ and V/sub q/ in a parallelogram. From a theoretical analysis of the parallelogram method, which is used for partial-discharge measurement, the width of the parallelogram is equal to
null Ren Peiyu, null Zhong Guangming
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An approach is developed which can be used to calculate the sparking and residual voltages V/sub s/ and V/sub r/, or the ratio between them, from the corner values V/sub p/ and V/sub q/ in a parallelogram. From a theoretical analysis of the parallelogram method, which is used for partial-discharge measurement, the width of the parallelogram is equal to
null Ren Peiyu, null Zhong Guangming
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Enhancement of the SPD Residual Voltage at Apparatus Terminals in Low-Voltage Power Systems
IEEE Transactions on Power Delivery, 2007Surge protective devices (SPDs) are installed at the boundaries of lightning protection zones to damp the surges to the protection level of the SPD. If the circuit between the SPD and the apparatus to be protected is too long, the propagation of the surges leads to oscillation phenomenon.
Ibrahim A. Metwally, Fridolin H. Heidler
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Voltage-sensing residues in the S4 region of a mammalian K+ channel
Nature, 1991The ability of ion-channel proteins to respond to a change of the transmembrane voltage is one of the basic mechanisms underlying electrical excitability of nerve and muscle membranes. The voltage sensor has been postulated to be the fourth putative transmembrane segment (S4) of voltage-activated Na+, Ca2+ and K+ channels.
E R, Liman, P, Hess, F, Weaver, G, Koren
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2018 IEEE CPMT Symposium Japan (ICSJ), 2018
This paper evaluates the influence of common mode voltage in the floating voltage measurement with differential voltage probe, and proposes the procedure to compensate the influence of common mode voltage. The measured residual common mode voltage superimposed on differential voltage probe output is compensated with the measured residual common mode ...
Tsuyoshi Funaki, Kei Hayashi
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This paper evaluates the influence of common mode voltage in the floating voltage measurement with differential voltage probe, and proposes the procedure to compensate the influence of common mode voltage. The measured residual common mode voltage superimposed on differential voltage probe output is compensated with the measured residual common mode ...
Tsuyoshi Funaki, Kei Hayashi
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Measurement and calculation of surge-arrester residual voltages
Measurement, 2011Abstract This paper presents accurate measurement of residual voltages of surge arresters (SA) by two designed charge meters (D-dot probes) as well as simulation validation in the high-conduction regime. Simultaneous impulse voltage measurements were conducted by using two D-dot probes, two uncompensated commercial mixed resistive–capacitive (RC ...
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Residual voltages analysis in reclosing process for induction machine
2008 7th World Congress on Intelligent Control and Automation, 2008Induction motor required continuous running frequently comes with reclosing process due to interrupted supply in power frequency. However, large current and torque of the motor incidentally appear in the process. The paper firstly analyzes reclosing dynamic process of induction machine at the time of the absence supply and presence stator residual ...
Aiyuan Wang, Zhihao Ling, Wenbo Liu
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