Calibration and testing facility for resistance welding current monitors

Author

Destefan, Dennis E.

Author_Institution

Precision Joining Center, EG&G Rocky Flats Inc., Golden, CO, USA

Volume

45

Issue

2

fYear

1996

fDate

4/1/1996 12:00:00 AM

Firstpage

453

Lastpage

456

Abstract

The lack of uniform and traceable measurement of pulsed high currents (1-200 kA) utilized in the resistance welding process has long been a problem in the welding community. A testing facility utilizing equipment and knowledge gained in the Department of Energy programs is being made available to the American welding industry to solve these problems. Problems in making these measurements traceable to national standards and proposed solutions are presented. Test equipment and methods are described that will be used to evaluate current-sensing coils and weld-current monitors. Comparison of positional errors for various current-sensing coils is presented, including a recently developed, machinable Rogowski coil

Keywords

calibration; coils; electric current measurement; electric sensing devices; electric welding; magnetic sensors; measurement errors; measurement standards; resistance welding; test equipment; test facilities; welding equipment; 1 to 200 kA; Faraday cage; calibration; current-sensing coils; machinable Rogowski coil; national standards; positional errors; pulsed high currents; resistance welding current monitors; testing facility; traceable measurement; Calibration; Coils; Current measurement; Electrical resistance measurement; Manufacturing; Measurement standards; NIST; Pulse measurements; Testing; Welding;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.492766

Filename

492766