本文介绍的粮堆微风速测量仪,采用传感器埋入粮堆,可测量各点微气流风速,或通风时粮堆内各点风速。经使用表明,灵敏度高,具有较强的推广应用价值。一电路原理本电路主要由信号放大部分、信号峰值检波器和信号表头显示三部分组成。电路见图一。 This article describes the grain heap breeze velocity measuring instrument, the use of sensors embedded in the grain heap, can measure the micro-air flow at each point of wind speed, ventilation or wind speed at various points within the grain piles. The use of that high sensitivity, with strong promotion and application value. A circuit principle The circuit mainly by the signal amplification part, the signal peak detector and signal header display three parts. Circuit shown in Figure one.