What are the principle and advantages of ultrasonic liquid level meter?

Today, I will explain to you the principle of ultrasonic level meter, what advantages and disadvantages it has.

First of all, the principle of ultrasonic level meter is similar to sonar, after the transducer emits a pulse ultrasonic wave to reach the liquid level, it is reflected, and after the reflected sound wave is collected by the sensor, the distance between the two can be calculated by calculating the time difference in the middle, but the liquid level obtained in the measurement is the distance from the installation position to the pool minus the measured distance.

So what are the advantages and disadvantages of ultrasonic level meter?

Advantages

1. It does not need to be in contact with the medium, has a long service life, and can even be used for 5-10 years without problems if properly maintained.

2. High degree of electronization, strong signal processing.

3. The structure is more simple and easy to understand, and the use cost is low.

Disadvantages

1. Where acoustic waves of dust mist cannot penetrate.

2. Where the foam debris page is incomplete.

3. Seal areas where pressurized plastic cannot be carried.

4. It is difficult to collect stirring signals.