Life detector is the most valuable instrument in an earthquake

In the earthquake rescue, the life detector is one of the frequently used equipment.

The life detector is based on the principles of physics such as electromagnetic waves, sound waves, and light waves, and converts physical signals into electrical signals through a dedicated sensor, and then filters and amplifies and outputs visible or audible signals. These sensors can search, detect, and search for life. equipment.

We generally classify life detectors into audio, video, and radar. The latest "Urban Fire Station Construction Standards" is based on this classification. The first two are special stations and the latter is optional. This is mainly classified by sensor type:

1. Audio life detector (including sound wave, shock wave)

2. Video life detector (including optical, fiber optic, infrared)

3. Radar life detector (including imaging, non-imaging)

4. Gas-sensing life detector (such as carbon dioxide detector)

5. Other types of life detectors (such as magnetic field form); if classified by detection function, they can be divided into direct life detectors and indirect life detectors; classified as active life detectors and passive life detectors according to detection methods; Divided into land exploration, underwater detection of life detectors.