The working principle of ultrasonic level meter is that the transducer (probe) sends out ultrasonic pulse, when the pulse meets the surface of the measured medium is reflected back, part of the reflected sound wave is received by the same transducer, and converted into electrical signals. The ultrasonic pulse travels at the speed of sound waves, and the time interval from the pulse transmission to reception is proportional to the distance from the transducer to the surface of the medium to be measured. The relationship between the distance value D and the sound velocity S and the time interval T can be expressed by the formula: D=S×T/2 The L2000C radio frequency admittance controller uses the Princo anti-adhesion circuit design to detect the real object position and eliminate the influence of the false object position signal sticking and hanging around the probe. We also independently adopt foreign advanced design and production technology, so that electronic circuit parameters more stable, reliable, longe

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