Ultrasonic transducers transmit and receive waves for numerous types of sensing. They convert the high frequency sound wave energy into an ultrasonic range. When these sound waves are focused on a target, the echo is read by these sensors.
Ultrasonic transducers determine a specific variable like speed, distance level or proximity in applications such as counting, security applications, non-destructive evaluation, web break detection, and welding and cutting. They operate at a resonant frequency with numerous construction options, power levels and beam patterns.
Some important specifications of ultrasonic transducers
The ultrasonic transducers have numerous important specifications. Transmitting frequency is the functional frequency range of the device. The bandwidth is actually the difference between high and low operational frequency limits.
Rated signal power of ultrasonic transducers are other important specifications. Transmit sensitivity of the ultrasonic transducers is the ratio of sound pressure created to input voltage. On the other hand, receive sensitivity is the ratio of the output voltage that is produced over the sensed sound pressure.
The beam angle is the completely incorporated angle of the ultrasonic beam. A lower frequency transducer usually produces a wider beam whereas a high frequency ultrasonic transducer produces a narrow beam. The beam angle of the ultrasonic transducer can be influenced using a transducer housing construction.
The angle beam ultrasonic transducer comprises of mounted transparent angle blocks which are used for flaw detection and weld inspection. They use refracted shear waves for detecting faults throughout the depth of connect areas.
Ultrasonic transducers are available in different configurations used for connecting one or more transducers in a parallel or series.
