[Lindsay] has a wonderful writeup about a new toy in the shop, an ultrasonic transducer. The 28kHz, 70W bolt-clamped Langevin transducer by itself is not much use, you need a power supply ...

Fish finding systems are critical for maritime fishers, and the transducer is what makes these devices work. To get the best results from a transducer, though, you need to put it in an optimal ...

Bandwidth is the difference between low and high operational frequency limits. Rated signal power available from the transducer is another important specification. Transmit sensitivity is the ratio of ...

While spherical and ring sources are omnidirectional in at least one plane, the piston-type transducer generally projects sound into one direction with a directionality that depends on its size ...