Sound wave generator for trapping bighead carp

Abstract

Provided is a sound wave generator used for trapping bighead carp, comprising a transformer, a capacitor and triodes. The output terminal of the oscillation coil of the transformer is serially connected with a capacitor and the center tap of the control coil of the transformer is connected with the cathode of the power supply and the emitter electrodes of the triodes through resistors, and the other two ends of the control coil are connected with the base electrodes of the triodes through diodes. The center tap of the power coil of the transformer is connected with the anode of the power supply through an ammeter shunt and a switch. One end of the power coil is connected with the collector electrode of one triode and the other end is connected with the collector electrode of another triode and then grounded. A voltmeter is connected in parallel with the input end of power supply and an ammeter is connected in parallel with the ammeter shunt. The fish trapping device enjoys simple structure, small volume and is easy to operate. Its oscillating wave is in resonance with the sleep frequency of bighead carp so that the bighead carp can be trapped while sleeping, thereby the life habits of the bighead carp are not disrupted and labor intensity of fishing can be lowered.

Description

technical field [0001] The invention relates to a sonic fishing device, in particular to a sonic generator for trapping bighead carp. The invention belongs to the technical field of acoustic vibration sensing electronics. Background technique [0002] Bighead carp is also called silver carp, black carp, Baotou fish, fat boy and loose fish. Bighead carp inhabit the middle and upper layers of the water and have the habit of migrating in rivers and lakes. They usually live in rivers and lakes with a certain flow rate. Mild temperament, little jumping, slow action. The feeding habits of bighead carp are different from that of silver carp. It mainly eats zooplankton in the water, such as rotifers, cladozoa, copepods and protozoa, and also eats a variety of planktonic algae. [0003] At present, when people fish in large rivers, large lakes or large areas of water, they generally use dragnets and cast nets. Bighead carp cannot be exclusively caught, and the fishing efficiency ...

AI Technical Summary

Problems solved by technology

Bighead carp cannot be exclusively caught, and the fishing efficiency of casting nets is low in a wider water surface. Fishing with dragnets is labor-intensive, and it is very inconvenient to catch fish. When using caster nets or dragnets, the caught fish are easily injured Fish that escape due to injury or missed catch will be frightened, thus affecting the normal growth of fish and the occurrence of various fish diseases; There are many aquatic plants and rocks at the bottom, it is difficult to use the net, and the efficiency of catching bighead carp is low

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