摘要
本文叙述了石油探矿与开采时测量温度所需要的仪器。为了解决在现场实际应用中测温距离远、外界干扰大的问题,应用了线性较好的铂电阻传感器,采用恒流源消除了外界干扰和解决了信号传输问题,应用双臂桥路增大了输出信号,仪器误差≤±1℃。
This paper reported the temperature measuring instrument used in petroleum prospecting and production. In order to overcome the difficulties of long distance and strong external interference in the worksite application, platinum resistor whose linearlity is quite good is ured as senor, persistent current source is used to eliminate the external interference and to solve the problem of signal transmission, double-arm bridge circuit is designed to increase the output signal. Accuracy of the instrument:≤±1℃.
出处
《红外技术》
CSCD
1992年第1期25-27,共3页
Infrared Technology
关键词
井温测试仪
恒流源
铂电阻
油井
Measuring instrument for the oil well temperature
Persistent current source
v Platinum resistor
