Automatic inductive voltage divider bridge for operation from 10 Hzto 100 kHz

A bridge to calibrate programmable and manual inductive voltage dividers is described. The bridge is based on a programmable 30-b binary inductive voltage divider with terminal linearity of ±0.1 ppm in phase and ±2 ppm quadrature at 400 Hz. Measurements of programmable test dividers can be automated using software developed to align the bridge components and perform an automatic balance     

Calculation of the errors of an inductive voltage divider with a balancing winding

A procedure for calculating the errors of the transfer factor due to the fact that the parameters of the sections of an inductive voltage divider with a balancing winding are not identical is proposed. The results of experimental investigations are presented.Translated from Izmeritelnaya Tekhnika, No. 10, pp. 40–43, October, 2004.     

Constant cryogenic voltage divider

Translated from Izmeritel'naya Tekhnika, No. 10, pp. 40–43, October, 1991.     

一种不平衡-平衡转换式电阻分压器的设计

为了利用虚拟仪器进行交流220V/50Hz电网电力品质测量,需要能够与虚拟仪器硬件产品(PXI-4472B)的接口特性相匹配的电压传感器.在高频变压器和电压互感器不能满足测量准确性的情况下,经过多次试验,设计了一套不平衡-平衡转换式电阻分压器,该分压器具有体积小、重量轻、精度高、安全性好等特点,取得了很好的测试结果,并可扩展应用于其他接口特性的虚拟仪器硬件产品.     

An active voltage divider for higher frequencies

Conclusion The proposed method can be recommended for the design of single-section screened voltage dividers for voltages of up to several kilovolts, which are intended for use at higher frequencies in checking high-voltage equipment as well as for high-voltage measurements.     

Determination of DC voltage ratio of a self-calibrating DC voltage divider

This paper presents two techniques for determining the ratios of resistive dc voltage dividers up to 1 kV. The techniques are based on absolute calibration methods. The setup requires equipment commonly available in most standard laboratories and is capable of providing high-accuracy calibration under practical laboratory working conditions.     

D-dot电容分压器线性度测试方法

为解决脉冲功率装置中D-dot电容分压器在低电压下校准高电压下使用,不可避免地产生分压比线性度问题,提出此测试方法。基于D-dot电容分压器和RC积分器电压测试系统的分压原理,利用PSPice仿真软件建立冲击高压下的等效电路模型,将冲击高压试验装置中经过上级溯源的标准电容分压器作为100 k V以下D-dot线性度和分压比的量传标准。实验结果证明:该方法准确有效,能够解决100 k V以下D-dot分压器分压比线性度的测试问题。     

Electronic compensation of inductive voltage dividers and standardvoltage transformers

A new compensating system is proposed to reduce the ratio error and the phase error of inductive voltage dividers and standard voltage transformers, operating at no load. An electronic amplifier reduces the input current, which is the main cause of error in low-frequency applications, while at the same time the input impedance is greatly increased     

Inductive voltage divider of simple design for 120 V and 50 Hz to30 kHz

An inductive voltage divider (IVD) is presented, which-in spite of its simple design-meets the level of accuracy commonly needed in the field of ac-power measurement. The in-phase errors of about -(20±2) 10^-6 achieved at the power frequency of 60 Hz, -(130±5) 10^-6 at 4 kHz and +(70±35) 10^-6 at 32 kHz can be considered adequate, considering that the determination of the power factor implies greater uncertainties at higher frequencies. The achievement is due to the build-up of the IVD using two cores, a suitable capacitance distribution and a special technique of screening which reduces the stray inductance of the windings     

电磁式电压互感器谐波误差测量方法研究

为实现电磁式电压互感器在基波叠加谐波的实际波形下的计量误差测试,提出一种基于有源电子分压器的测量电磁式电压互感器谐波计量特性测量方法.以有源电容式分压器作为宽频比例标准装置,采用误差反馈技术,提高互感器二次转换单元测量准确度,基于LabVIEW和高精度数字化仪完成信号的测量和误差的计算,完成对4台电磁式电压互感器进行谐...     

Codable voltage divider for measuring the linearity of the transfer function of measuring instruments

This article examines aspexts of the development, certification, and practical use of a linearity meter based on a codable voltage divider. The unit is designed for metrological tests of precision instruments used to measure voltage, current, and resistance. Translated from Izmeritel'anya Tekhnika, No. 3, pp. 52–55, March. 1996.     

Interlaboratory comparison of Josephson voltage standards

An interlaboratory comparison of Josephson Voltage Standards (JVS) has been made among 16 national, industrial; and military standards laboratories in North America and one in Europe. The comparison was made at 10 V using a set of four traveling Zener reference standards. A pivot laboratory made measurements at the beginning, at the end, and at nine other times during the comparison. The measured differences and their uncertainties are reported and used to establish a table of equivalence between each participant and the pivot, and between each participant and the National Institute of Standards and Technology (NIST). All but two of the differences fall within two parts in 10⁸