Sound wave generator for trapping tilapia

Abstract

Provided is a sound wave generator used for trapping tilapia, 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 tilapia so that the tilapia can be trapped while sleeping, thereby the life habits of the tilapia are not disrupted and labor intensity of fishing can be lowered.

Description

technical field [0001] The invention relates to a sound wave fishing device, in particular to a sound wave generator for trapping tilapia. The invention belongs to the technical field of acoustic vibration sensing electronics. Background technique [0002] Tilapia, also known as African crucian carp, has miscellaneous feeding habits. It can eat phytoplankton and plants in the water, as well as peanut cakes, rice bran, wheat husks, bean cakes and combined granular bait, etc. The bait is easy to solve. Oni tilapia is the leader in the tilapia family. It not only has the excellent common characteristics of tilapia such as wide food habit, strong disease resistance, good stress resistance and easy breeding, but also overcomes the multiple breeding of ordinary tilapia. , The disadvantage of slow production, obvious heterosis. It has wide adaptability and can be cultured in various water bodies. It is suitable for ponds, sea water, lake fences, rice fields, net cages and factory...

AI Technical Summary

Problems solved by technology

Tilapia cannot be exclusively caught. It is inefficient to use a cast net to fish in a wider water surface. It is labor-intensive to use a pull net to fish, and it is very inconvenient to catch fish. When using a cast net or a pull net, the fish caught are easy Injured or missed catch, the 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; when using nets to catch tilapia in small rivers, due to the shallow water , there are many aquatic plants and rocks at the bottom of the river, it is difficult to use the net, and the efficiency of catching tilapia is low

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