In the ariticle, the principle to read the temperature and humidity in capacitor type electronic yarn clearer of AT89C2051, AD7416 and CHS is introduced with the hardware and software designing of the reading system described.

• 介绍了利用AT89C2051、AD7416和CHS设计的电容式电子清纱器温湿度读取原理,并给出了读取系统的硬件及软件设计。