论文部分内容阅读
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 0mA输出廉价的小量程液位传感器
Introduce the use of reed switch arrays to detect the location of reed contacts through a keyboard-like scanning method. A low-range liquid-level sensor with LCD display, RS485 communication and 4 ~ 20mA output has been developed