Life detectors are mainly used for natural and after disasters (earthquakes, fires, mining accidents, building collapses, mudslides, landslides, terrorist attacks, etc.) are used to detect survivors under collapsed buildings.

Generally speaking, the life detector is based on the principles of physics such as electromagnetic waves, sound waves, and light waves, and it can search, detect, and convert the physical signals into electrical signals through a dedicated sensor, and then filter and amplify and output visible or audible signals. Life-seeking equipment. Life detectors mainly have the following categories:

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

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

3 . Radar life detectors ( including imaging detectors, non-imaging detectors ) ;

4 . Gas sensitive life detector ( such as carbon dioxide detector ) ;

5 . Other forms of life detector ( such as magnetic field form ) .

Searchers and rescuers are also different in their choice of life detectors in the face of natural disasters or human-made disasters. Here are two examples:

1 , gas sensitive life detector ( such as carbon dioxide detector ) based on the principle of human exhaled carbon dioxide, the search site when the gas concentration in a fixed space rose to 1100ppm (1 1 % ) or more, you can detect the presence of human or animal signals For a narrow, relatively closed space search for life, it cannot be used at the scene of a fire accident and cannot be used in an open space.

2. Infrared video life detector ( usually referred to as thermal imager ) can only detect people or objects with fever source, can't block objects, use a narrow range, and other types of life detectors are relatively rare. Introduction. 2004 Fourth Military Medical University, developed a radar life detector, detection range of 30 - 50 meters, the penetration entity brick walls up to 2-3 meters.

According to different environments and conditions, we have to choose different life detectors. Here are some of the better life detectors on the market for your reference.

1, radar life detector: American Life (Radford) Locator radar life detector

American Radford Radar Life Detector adopts new advanced UWB technology, and combines advanced UWB + WIFI science and technology applications. Applying the latest decryption of aerospace wireless communication technology, more rescued personnel gain new life. After being tested and tested by the United States national rescue department, it proved that its function and operation have completely met the requirements of using CE in poor rescue environment .

The Radford Radar Life Detector of the United States does not need any additional electric cables or long rods. It can search and locate trapped people under the rubble. The use of the latest advanced wireless transmission technology, with fast moving, light equipment, simple operation, anti-jamming, etc., suitable for harsh rescue environment characteristics. Can be detected within 30 seconds within the range of movement of persons in distress and breath, can penetrate obstacles (e.g., concrete brick, asphalt layer, caused by landslides and avalanches of snow) for detecting, from the background sound and The impact of noise. The sensor can send out signals containing the specified information of the target, so that the detection activity can be faster and more accurate. It also makes the first aid, safety and military personnel involved in the rescue more secure.

Uses: earthquakes, terrorist attacks, mine disasters, building collapses, tunnel collapses, mudslides or landslides, mudslides

2 , gas detector: Finland Environics ChemProHT handheld full-function chemical detector

In Victoria in 2012 the company launched a new site can be used to detect chemical agents and toxic industrial handheld chemical detector. It has industry-leading detection sensitivity, low false positives, user-friendly design, and low maintenance requirements. The ChemProHT Handheld Chemical Detector employs an array design with multiple detection technologies that can be used for simultaneous detection, classification and measurement of a wider range of chemicals. ChemProHT is a truly orthogonal design detector. One of its core technologies is the open ion mobility spectrum sensor unique to Iveco . The simultaneous application of other sensors significantly improves the detection performance, which is mainly reflected in the increase in the number of toxic industrial products detected and the greatly reduced rate of false alarms. Ivermectin by company C hem P ro external detection module, ChemProHT may be expanded to the detection of nuclear, biological and chemical detection system versatile.

Scope of use: fire and rescue, petrochemical power, emergency rescue, military and police anti-terrorism

3 , infrared thermal imager: HAWK STUART Hawker E80 infrared thermal imager

The E80's overall design is ergonomic: 1/3 weight distribution, V- shaped handles, 66 ° viewing angle, lifebuoy protection, and one-button operation make it easy to operate with one hand. 3.5 -inch TFT high-definition LCD screen, 50Hz real-time imaging, 65mk high sensitivity, rich point-to-point temperature analysis function, sound color high temperature dual alarm, 40 seconds voice annotation, a variety of temperature range is optional, 3 lenses are freely interchangeable , 10 language operation menu, professional analysis software gives E80 extremely high price/performance ratio. The E80 is an economical infrared thermal imager that is suitable for infrared detection in most industries and is equipped to meet your different inspection needs.

Use range: fire fighting, petrochemical power, mine rescue, emergency rescue

For more life detector parameters and descriptions, click here. This article is edited by China Rescue Equipment Network. Please indicate the link.