Traditional ultrasonic level meters have a large blanking area below the probe, making them difficult to measure at the top of high-level containers or in small spaces. QYL-U03-M Mini type high-precision ultrasonic tank level sensor with a small blanking area utilizes advanced acoustic wave focusing technology and intelligent echo processing algorithms to significantly reduce this blind spot to 6-15cm while maintaining high measurement accuracy within a deviation of 1-1.5 mm.
Principle of the mini-type Ultrasonic Tank Level Sensor
Install height G: ( probe to the height of the tank bottom)
Liquid level H: ( level or material level height)
Air distance L: (probe to test surface area)
Blanking distance C: (a small area below the sensor)
Instrument range d: (generally from zero to the highest plane, only linearly corresponding to output P)
Formula：
1、Ranging：L=S*T/2； S=331.45+0.61*n℃
2、Level：H=G-L
3、Output： P=H/d*16+4 or P=L/d*16+4 （Note: P output current in mA）
