超聲波液位計由聲波的發射和接收之間的時間來計算傳感器到被測物體的距離。無機械可動部分，可靠性高，安裝簡單、方便，屬于非接觸測量，且不受液體的粘度、密度等影響精度比較低，所以選擇。
Because, the ultrasonic liquid level meter calculates the distance between the sensor and the object to be measured by the time between the transmission and reception of the sound wave. There is no mechanical movable part, high reliability, simple and convenient installation. It belongs to non-contact measurement, and is not affected by the viscosity and density of liquid. The accuracy is relatively low, so it is selected.
超聲波液位計特點及工作原理
Characteristics and working principle of ultrasonic level gauge
超聲波液位計是由微處理器控制的液位數字儀表。在測量中超聲波脈沖由傳感器發出，聲波經液體表面放射后被傳感器接收，通過壓電晶體或磁致伸縮器件轉換成電信號，由聲波的發送和接收之間的時間來計算傳感器到被測液體表面的距離。超聲波液位計采用非接觸測量，對被測介質幾乎不受限制，可廣泛用于液體固體物料高度的測量。
Ultrasonic liquid level meter is a digital instrument controlled by microprocessor. In the measurement, the ultrasonic pulse is sent out by the sensor, and the sound wave is received by the sensor after being radiated by the liquid surface. The distance between the sensor and the measured liquid surface is calculated by the time between the sending and receiving of the acoustic wave. Ultrasonic liquid level meter adopts non-contact measurement, which is almost unlimited for the measured medium, and can be widely used to measure the height of liquid and solid materials.
超聲波液位計適于應用的環境
Application environment of ultrasonic level gauge
超聲波液位計是超聲波液位計和超聲波料位計的統稱，當用于測量液體液位時，通常稱為超聲波液位計；當用于測量固體料位時，通常稱為超聲波料位
Ultrasonic liquid level meter is the general name of ultrasonic liquid level meter and ultrasonic material level meter. When it is used to measure liquid level, it is usually called ultrasonic level meter; when it is used to measure solid material level, it is usually called ultrasonic material level meter.