阐述了电路原理和量程切换的方法。
The principle of circuit and range switch method are introduced.
提出并设计了一种适用于电压表的量程自动转换电路。
A kind of circuit for automatic range selection of voltmeters is introduced and designed.
通过对张力测试的分析及传感器的原理分析，介绍一种应用于测试微电子集成电路丝线张力的小量程张力测试机构的设计。
This paper introduces a design of machine in small range tension test which is applied to a field of micro-electronics integrate circuit, by analyzing tasting method and sensor theory.
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