Fast synchronous AC-DC-transfer with thermal converters

Author

Mohns, Enrico ; Ihlenfeld, Waldemar G Kürten

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

Volume

54

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

791

Lastpage

794

Abstract

A technique for significantly reducing the time of alternating to direct current (ac-dc) transfer measurements is proposed in which a thermal converter is synchronously switched with the ac input signal. The technique facilitates the use of thermal converters in routine AC-DC transfer calibrations making them less time consuming and more attractive in calibration laboratories. A fast AC-DC transfer measurement system using this technique and a synchronous sampling system will be presented.

Keywords

calibration; electric current measurement; thermoelectric devices; transfer standards; AC-DC transfer calibrations; AC-DC transfer measurement system; fast synchronous AC-DC transfer; synchronous sampling system; thermal converters; thermal time constant; transfer measurements; Calibration; Current measurement; Energy measurement; Frequency measurement; Sampling methods; Switches; Switching converters; Temperature sensors; Time measurement; Voltage; AC–DC transfer; root mean square (rms); thermal converters; thermal time constant;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.843111

Filename

1408290