Description
Mud water interface measurement is carried out by an ultrasonic sensor installed in water, which emits a beam of ultrasonic pulse to the underwater mud surface. This pulse signal is reflected back when it encounters the mud surface and can be received by the sensor again; The time from ultrasonic emission to re reception is proportional to the distance from the sensor to the surface of the measured object; The instrument detects the time and calculates the distance from the surface of the measured object to the sensor (i.e. liquid level distance) based on the current temperature (measured by the sensor) and the speed of sound underwater, and further converts the mud level value. The liquid level distance W on the surface of the mud level is directly proportional to the travel time T of the sound wave: W=V × T/2 (where V is the velocity of the sound wave in water). The user sets the height H from the probe to the bottom of the pool, and the instrument automatically converts the pulse travel time T into the corresponding spatial distance value W, and then calculates the difference between H and W to obtain the measured value L.