恒流制 constant-current system
- 分析说明了二线制变送器的恒流源设计及变送器的整机电路。
The design of the constant current source in two-wire transmitter and the integrated transmitter circuit are analysed. - 信号预处理系统还包括温度信号提取电路,通过铂热敏电阻实现对温度信号的提取,采用了三线制恒流源测量法。
The signal pre-processing system also has circuit to extract temperature signal via platinum thermistance, in which three-wire system and constant current measurement method are adopted.
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