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Detailed Introduction of sonar transducer and ultrasonic transducer

Views: 3     Author: Site Editor     Publish Time: 2020-04-28      Origin: Site

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Sonar transducer and underwater acoustic transducers are two kinds of detection devices that are often heard. Many people think that these are a kind of ultrasonic sensor. What is the difference between these two transducers?


The sonar transducer directly detects and recognizes the objects in the underwater and the outline of the bottom. The sonar transducer sends out a sound wave signal, which will be reflected back when it encounters the object. It calculates its distance and position according to the reflection time and wave mode. The piezoelectric ultrasonic transducer uses ultrasound sensor has been developed based on its characteristics. Ultrasound is a mechanical wave with a vibration frequency higher than that of sound waves. It is generated by the vibration of the transducers chip under the excitation of voltage. It has high frequency, short wavelength and small diffraction phenomenon, especially good directivity and can be oriented by rays. They are dissemination and other characteristics. Sonar transducers are mainly used to detect organisms, such as detecting which organisms are underwater and how large the organism. The device you often hear about detecting monsters is a sonar transducer.


Ultrasonic waves have a great ability to penetrate liquids and solids, especially in the solids that are opaque to sunlight, it can penetrate a depth of tens of meters. Ultrasonic waves are encountering impurities or interfaces will produce significant reflections and form reflections into echoes, and touching moving objects can produce the doppler effect. Therefore, ultrasonic testing is widely used in the industrial, national defense, biomedical and other fields.underwater ultrasonic depth transducer are sensors developed by using the characteristics of ultrasound. In the industry, the typical applications of ultrasound are non-destructive testing of metals and ultrasonic thickness measurement. The application of ultrasonic sensors in medicine is mainly to diagnose diseases, and it has become an indispensable diagnostic method in clinical medicine.


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