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Shenzhen modern ultrasonic Industry Co., Ltd

Tel:0755-28169980 13828717982

Contact: Xie Xingyan

E-mail: mu-xxy@163.com

Address: Shenzhen Longhua Dalang Street Shiguan Hongde Industrial Park

27

2022

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07

Introduction to the application and principle of ultrasonic technology

Ultrasound is a mechanical wave with a very short wavelength, and the wavelength in the air is generally shorter than 2cm (centimeter). It must rely on a medium to propagate and cannot exist in a vacuum (like space).


Ultrasound is a mechanical wave with a very short wavelength, and the wavelength in the air is generally shorter than 2cm (centimeter). It must rely on a medium to propagate and cannot exist in a vacuum (like space). It travels farther in water than in air, but because of its short wavelength, it is very easy to lose and scatter in the air. It is not as far as audible sound and infrasound waves, but it is easier to obtain anisotropic sound energy with short wavelengths. For cleaning, gravel, sterilization, etc. There are many applications in medicine and industry.

The word "super" of ultrasonic waves comes from the fact that the lower limit of the frequency band exceeds the human hearing, but if analyzed from the perspective of wavelength, the wavelength of ultrasonic waves is actually shorter. Scientists call the distance between two adjacent peaks or troughs of a wave as wavelength, and the wavelength of mechanical waves that our human ears can hear is 2cm~20m (2cm~20m). Therefore, we call mechanical waves with wavelengths shorter than 2cm "ultrasonic". However, in practical applications, mechanical waves with a general wavelength below 3.4cm (above 10000hz) can be regarded as ultrasonic research. The wavelength of ultrasound usually used for medical diagnosis is 10 μm~350 μm.

Ultrasound is a kind of mechanical wave, it must rely on medium to propagate and cannot exist in vacuum (such as space), so we cannot use ultrasound in vacuum, but we can still use equipment related to electromagnetic waves (including radio waves, microwaves, infrared , visible light, ultraviolet rays, X-rays, gamma rays, etc.) to utilize electromagnetic wave technology.

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