摘要
介绍利用干簧管阵列 ,通过类似键盘扫描方式检测干簧管接点位置 ,开发了一种集LCD显示、RS 4 85通信及 4～ 2
A low-cost and small-scale liquid level sensor with a LCD display,a RS-485 communication interface and a 4～20 mA current output is successfully developed by a method similar to keybord scanning of using an array of contacts of tongue tube.
出处
《测控技术》
CSCD
2002年第8期13-15,共3页
Measurement & Control Technology
