Title :
An accurate AC-Dc voltage transfer standard test system using the differential and the dual-channel method
Author :
Takahashi, K. ; Sasaki, H. ; Klonz, M. ; Endo, T.
Author_Institution :
Japan Electric Meters Inspection Corp., Tokyo, Japan
fDate :
4/1/1993 12:00:00 AM
Abstract :
In the Electrotechnical Laboratory (ETL) the accuracy of the AC-DC voltage transfer difference was improved for the voltage range of 1-20 V in the frequency range from 10 Hz to 100 kHz. At the same time, the AC-Dc transfer standards and the measurement system which is used in the Japan Electric Meter Inspection Corporation (JEMIC) were also improved. The system is realized by applying an improved differential and a dual-channel method. The test repeatability is better than 1 ppm for nominal test voltages. The voltage and frequency measurement ranges are extended up to 200 V and up to 1 MHz. The whole system is controlled by a desktop computer with an optically isolated GP-IB bus system
Keywords :
automatic test equipment; frequency measurement; measurement standards; microcomputer applications; voltage measurement; 1 to 20 V; 10 Hz to 100 kHz; 100 kHz to 1 MHz; 20 to 200 V; AC-Dc voltage transfer standard; ATE; Electrotechnical Laboratory; Japan Electric Meter Inspection Corporation; desktop computer; differential method; dual-channel method; frequency measurement; optically isolated GP-IB bus; test repeatability; voltage measurement; Electric variables measurement; Frequency; Inspection; Laboratories; Measurement standards; Optical computing; System testing; Time measurement; Voltage; Watthour meters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
