Piezoceramic Applications: Ultrasonic Fish Finder

Ultrasonic fish finder device uses the ultrasonic cavitation effect to produce lethality, ultrasonic action in the liquid can produce a large number of small bubbles. The utility model relates to an ultrasonic fishing machine, which is used for controlling the transmission and driving circuit, and an isolating circuit, an ultrasonic sensor, and an integrated transducer which is provided with a receiving and sending device. The ultrasonic sensor is divided into two parts: transmitter and receiver. We combine it as an ultrasonic transducer, which is installed in the machine. One reason is that the local tensile stress in the liquid and the formation of negative pressure, reducing the pressure of the original dissolved in liquid gas supersaturation. Another reason is that the tensile stress of the liquid "tear" into a hole, called cavitation. Another gas, or even a vacuum, that is liquid vapor or dissolved in a liquid. The formation of small bubbles due to cavitation will continue to move with the vibration of the surrounding media, grow up or suddenly burst. When the liquid suddenly burst into the bubble burst, resulting in high temperature, high pressure, while the shock wave. The internal friction along with the cavitation can form the charge, and produce the light emission in the bubble. In addition the ultrasonic can also stimulate the brain when fish are poikilotherm, the acoustic oscillation frequency and the frequency of the external phase is close, it will produce resonance phenomenon, in a coma in a short period of time. To achieve the best capture effect, and can be deep animal that surfaced out any fishing (3 minutes after the resurrection), a large small, does not affect the reproduction, absolutely safe to human and animal blood.

Ultrasonic fish finder's sensor is made of piezoelectric ceramics. Ultrasonic fishing machine has the characteristics of perfect function, stable performance, long life and reliable work.