Design of a New Passive Liquid Level Sensor for Mine-used Diesel Vehicle

In allusion to problems that liquid level sensor for mine-used diesel vehicle cannot dynamically adjust alarm height of remaining water level of tank and has poor reliability, the paper proposed a design scheme of a new passive liquid level sensor. The sensor uses passive devices such as reed switch and resistor arrays to realize continuous monitoring of water level of tank, which can set the alarm depth and has good reliability and high temperature performance.