Portable infrasound detector successfully developed and put into use

[China Instrument Network Instrument R&D] Recently, a portable infrasound detector jointly developed by the China Aerospace Science and Industry Corporation 207 Institute and the Institute of Acoustics of the Chinese Academy of Sciences has been successfully developed and put into use.

(Photo courtesy of the Second Institute of China Aerospace Science and Industry Corporation)

China Aerospace Science and Industry Corporation No. 2 Research Institute was established in 1970. It is the only professional research institute engaged in the study of the target and its environmental characteristics. The main research areas of the Institute are the application of science and technology, development of aerospace technology, research on the characteristics of targets and environments, research on the extraction and identification of target features, research on target detection and control, research on the spectral characteristics of satellite remote sensing, photoelectric detection and tracking research, and computer technology development. Laser anti-counterfeiting technology research. After more than 40 years of development, it has developed a road of integration of military-civilian integration, industrial management and capital operation.

The Institute of Acoustics of the Chinese Academy of Sciences was established in 1964 and is a comprehensive research institute engaged in the research of acoustics and information processing technologies. The Institute of Acoustics has developed the application foundation and high-tech development research of acoustics and information processing technology in the fields of marine, safety, energy, life and health, and information networks, and has become a first-rate national professional research institution in acoustics and information processing technology.

Sound waves with frequencies less than 20Hz are called infrasound waves. Infrasound waves are not easily attenuated and are not easily absorbed by water and air. The wavelength of the infrasound wave is often very long, so it can bypass the diffraction of some large obstacles. Some infrasound waves can orbit the earth for two to three weeks. The infrasound waves of certain frequencies are similar to or even the same as the vibration frequencies of human organs. They are easy to resonate with human organs and have a strong harm to the human body. When it is dangerous, it can cause death.

Due to the harm caused by infrasound, the China Aerospace Science and Industry Corporation 207 Institute and the Institute of Acoustics of the Chinese Academy of Sciences conducted in-depth cooperation, utilizing the accumulation of their respective products in the field of acoustic detection and integration of security and industrial monitoring, and jointly developed a A portable infrasound detector for rapid detection and early warning of "infrasound" contamination.

According to reports, the product design can directly display the sound pressure and audio curves, and use the color scale to display the infrasound accumulation in the environment. The detection accuracy is high. It can be used for the security monitoring tasks of the important resident and whether there is continuous in the detectable environment. , may endanger the health of the infrasound waves and give early warning. Up to now, the first set of portable infrasound detectors has been successfully used and the equipment is running well.

(Source: CCTV, China Aerospace Science and Industry Corporation, Institute of Acoustics, Chinese Academy of Sciences, Baidu Encyclopedia)