스캐팅 유닛 사용 시 스트레인 게이지 측정 중 열에 의해 발생하는 에러를 피하는 방법

제품의 신호 변화와 측정 에러를 발생시키는 열의 원인인 스트레인 게이지 여자 전압 적용.

This paper shows the most important results of many measurements which had to be taken to determine the amplitudes and time constants of these shifts of signals for different strain gage types, excitation voltages, adhesives and construction materials.

In its second part the paper discusses methods of avoiding measuring errors due to heat effects and describes a scanning unit which allows to take measurements almost insen-sitive towards heat effects, voltage drops across the measuring leads and switching elements, or induced error voltages.