一种基于电容传感器的液体密度测量电路的设计

A design for liquid density measurement circuit based on the capacitance sensor

设计了一种基于电容传感器的液体密度测量电路,介绍了设计思想和各部分的工作原理,给出了总的测量电路图.利用本电路测量相对误差在0.5%以内,具有测量准确度高、测量速度快、数字显示直读、使用简单的特点.

A sensor-based liquid density measurement circuit is designed in this paper, the design concept and part of the working principle are introduced, and the circuit diagram is given. The relative error of the measurement circuit is less than 0. 5% , and the present circuit has high accuracy and fast speed of measurement. The figures can be read directly and used simply.