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把非电量通过各种转换,变成测量方便的电量信号时,正在应用集成工艺。特别是采用集成压敏元件进行压力的测量。这类元件都为模拟输出信号,要进行远距离测量是困难的。本文研究一种频率输出信号的压力传感器,可离被监控物体10公里远处进行测量。压力传感器在结构上是一种模数装置,这种装置由集成桥式应变电阻结构的敏感元件、保护敏感元件和传递测量压力用充填变压器油的波纹管、集成电路电压一频率变换器以及不锈钢外壳所组成。由于传感器外壳的直径受到限制(因为它用在油井的深度测量仪器中),在由电压-频
The non-power through a variety of conversion, into a measurement of convenient power signal, is applying integrated technology. In particular the use of integrated pressure-sensitive components for pressure measurement. Such components are analog output signal, to make long-distance measurement is difficult. This paper studies a frequency output signal pressure sensor can be measured from the object 10 km away from the measured. The pressure sensor is structurally a modulo device consisting of a sensing element incorporating a bridge strain gage structure, a sensing element to protect the sensing element and a corrugated tube filled with transformer oil for measuring pressure, an integrated circuit voltage-to-frequency converter, and a stainless steel Shell composition. Due to the limited diameter of the sensor housing (as it is used in depth gauges for oil wells), the voltage-frequency