Home > NEWS > Industry Information > Frequency of ultrasonic mosquito repellent

Frequency of ultrasonic mosquito repellent

2018-09-16 22:30 admin
Insect ecology has shown that female mosquitoes bite people and animals during reproduction. Since natural female mosquitoes try to avoid disturbance by male mosquitoes during reproduction, electronic mosquito repellents make use of this nature to produce sound waves with a frequency of about 6000HZ to imitate the sound of male mosquitoes and eliminate ovipositing female mosquitoes. Animal harmless, electronic mosquito repellent suitable for indoor and outdoor use, just put in two 1.5 volt batteries, you can use. Effective range is 20 square meters, this product is non-chemical, can operate day and night, suitable for indoor, garden, camping, weeding, fishing and other activities.

Engineers at the Acoustic Research Institute of the Chinese Academy of Sciences said, "In theory, ultrasound may repel mosquitoes, but the actual effect is minimal." Different species of mosquitoes perceive different frequency bands of ultrasound, even if a single mosquito repellent has a weak effect, can only affect a single species of mosquitoes, with acoustic mosquito repellent almost useless.

Otolaryngologists said that the ear for a long time in the "drop" and other monotonic sound, easy to produce irritability and physical discomfort, especially in infants with weak tolerance, may cry and other situations, should avoid putting sound source products near the ears of infants.

Yao Chengyi, Ph.D. in plant and Entomology at Wuhan University, said it would have a certain mosquito repellent effect, but should not be used for a long time. The principle of the "ultrasonic mosquito killer" is mainly to use mosquitoes to fear natural enemies bats, mosquito killers simulate the sound of bats to scare away mosquitoes. But long-term use, mosquitoes will produce a habit of this sound wave, so no longer afraid, mosquito killer will be invalid. At the same time, whether the ultrasound is harmful to the human body is not easy to say. It takes a long time to test. It is suggested that citizens should not wear them for long.
Many young people play with "mobilephone mosquito repellent software", claiming that when the software is turned on, the mobile phone can emit sound waves that imitate the shaking of bat wings to repel mosquitoes. Experts say that this kind of mobile mosquito repellent software is "very ridiculous".

Xu Zaifu, a professor in the Department of Insects at South China Agricultural University, called the mosquito repellent software "very absurd" and "mobile phone repellent software" not "Wanjin Oil". Female mosquitoes do not mate after conception, he said, but most mosquitoes mate many times, and mostly female mosquitoes make courtship sounds, so even if the shaking sound of the male's wings is simulated, the female mosquitoes do not repel. And different mosquitoes emit different sound waves, a software can only imitate a sound wave, for other different sound waves of mosquitoes, can not play a preventive role, "such as the U. S. made mosquito repellent software, but the Guangzhou mosquito has no effect."

The acoustics Institute of China explained that some manufacturers have studied the use of sound waves to repel mosquitoes, but in China, there is no formal scientific research institutions to verify its effect, "technically, mobile phones and computers can be designed to emit sound waves, but I doubt whether the sound of mobile phones can respond to the frequency of ultrasound. "." He said that special products are usually needed to emit ultrasound. In addition, he cautioned that this kind of ultrasound is not beneficial to the human body, the frequency of software issued on the human body how much harm, there is still no authoritative evaluation, use should be careful.

Frequency of ultrasonic mosquito repellent

Original address:https://www.ultra-piezo.com/news/piezoceramic-ultrasonic/76.html

author:UCESONIC

TAG ultrasonic: ultrasonic Frequency cleaning mahcine