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本文介绍一种简单而经济的相敏检波电路。它采用一个由方波驱动的同步整流器。这种电路是为应用电阻温度检测原理的大面积热流传感器研制的。它具有优良的线性度。分辨力和抗外界及内部噪声的能力。
This article describes a simple and economical phase sensitive detector circuit. It uses a square wave driven synchronous rectifier. This circuit is developed for large-area heat flow sensors using the principle of resistance temperature sensing. It has excellent linearity. Resolution and resistance to external and internal noise.