The working principle of ultrasonic horn making mouse repeller

    The circuit principle diagram of the ultrasonic loudspeaker is shown below. The 555 time-base integrated circuit is connected to the sweeping frequency ultrasonic generator. The sweeping frequency signal is taken from the 50Hz power frequency signal of the secondary side of the transformer T and added to the control pin 5 of the 555 time-base integrated circuit through R3, so as to achieve the purpose of changing the output pulse frequency. Using the data shown in the figure, the output frequency varies from 32 to 62kHz, and the electrical signal radiates ultrasonic waves to space through the ultrasonic transducer B. It is reported that the ultrasonic waves can make mice feel agitated and can drive away mice within 16 meters, but the actual effect needs to be verified by amateur experiments.

Ultrasonic rodent control:

In the hotel, home and any place to kill rats, it is recommended to use the invincible pioneer mouse repeller, ultrasonic electronic mouse repeller, mouse killer using modern high-tech electronic technology, acoustic mouse killer, can emit an ultrasonic wave, so that the mouse's brain and optic nerve are affected, causing disorder, until death. The ultrasonic rodent exterminator above 30 KHZ developed in our country has a very good effect on rodent extermination. The cockroach repellent is combined into one, through the stimulation of ultra-high frequency waves generated by multiple vocal bodies at the same time, interfering with the nervous, auditory and reproductive system of mice and cockroaches, so that it can escape quickly.