Ultrasonic Sludge Level Meter Working Principle Ultrasonic mud-water interface measurement is carried out by an ultrasonic sensor installed in the water, which emits a beam of ultrasonic pulses to the underwater mud surface. This pulse signal is reflected back after encountering the mud water 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 object being measured. The instrument detects this time and calculates the distance from the surface of the object being measured to the sensor (i.e., the spatial distance) based on the underwater sound speed at the current temperature (measured by the sensor). Then further converts the liquid level value. The empty underwater distance W of the liquid level surface is proportional to the travel time T of the sound wave: W=V×T/2 (where V is the speed of the sound wave in water). The user sets the height H from the probe to the bottom of the pool. The instrument automatically converts the pulse travel time T into the corresponding spatial distance value W. The difference between H and W is calculated as the measured value L. Ultrasonic Sludge Level Meter | Sino-Inst Ultrasonic sludge blanket level meter for wastewater — 0.2–12m, ±1%FS, submersible 316L probe IP68, dual 4–20mA, RS485 Modbus. Request a quote. Product SKU: Ultrasonic Sludge Level Meter-Sludge Blanket Detection Product Brand: Sino-Inst Product Currency: USD Product Price: 985 Price Valid Until: 2029-09-09 Product In-Stock: InStock Editor's Rating: 5
