The right way to choose ultrasonic transducer
Transducer as the core device of ultrasonic equipment, the choice of its characteristic parameters determine the performance of the whole equipment. The correct choice of ultrasonic transducer can make your measurement more accurate. Today we will talk about how to choose a transducer?
1. Understand the use of ultrasound equipment
Understand their needs, understand the use of ultrasound equipment, and understand the characteristics of the required ultrasonic transducer: such as the capacitance, power needed.
2. Select the frequency of the ultrasonic transducer
The frequency of ultrasound affects the propagation of ultrasound. Different ultrasound devices require different frequencies. For example , when used for ultrasonic welding, usually adopt frequency at 15Khz~70Khz. The higher the ultrasonic frequency, the more concentrated the energy, the better the directivity, but the higher the frequency, the greater the ultrasonic attenuation.
3. Select the angle of incidence of the ultrasonic transducer
The angle of incidence determines the installation position of the ultrasonic transducer. In order to ensure the selectivity of the signal received by the probe, the incident angle is selected to be larger than the first street corner and smaller than the second critical angle, with an angle between 28.7 ° and 60 ° .
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