论文部分内容阅读
现有的记录电容变化的装置是多种部件结构,这种结构要求采用复杂的电子设备,例如频率偏差测量仪。本文介绍一种能保证小位移电容传感器工作的线路,他不要求辅助设备,可简化传感器结构并减小外形尺寸。图中示出上述装置的原理。它以双平衡平方面积频率—调制检波原理作为其工作基础。这样能够在一个КЛ4УР3型集成微电路上制作整个装置。探测信号发生器用高频微电路放大器制成。为了激励电振荡,高频放大器输出
Existing devices that record capacitance changes are a variety of component structures that require the use of complex electronic devices such as frequency deviation gauges. This article describes a circuit that can guarantee the operation of a small displacement capacitive sensor. He does not require auxiliary equipment, which simplifies the sensor structure and reduces the overall size. The figure shows the principle of the above device. It is based on double-balanced square-area frequency-modulation detection principle as its working basis. This makes it possible to build the entire device on a single integrated circuit КЛ4УР3. Detection signal generator made of high-frequency micro-circuit amplifier. In order to stimulate electric oscillation, high-frequency amplifier output