Overview and application of infrared water detector

    Most of the earth is made of water, and water is the main theme on the earth's surface. Therefore, most of the earth's materials are also made of water. Some engineering materials have higher requirements for water content, so infrared water detectors are needed. Geological bodies are emitting infrared energy to the outside at all times and forming infrared radiation fields. When a geological body emits infrared radiation from the inside to the outside, it will inevitably transmit the geological information inside the geological body in the form of infrared electromagnetic fields.

　　When the medium in front of the tunnel and the surrounding area is relatively uniform and there is no hidden disaster source, the top plate, bottom plate, left wall and right wall are detected outward along the direction of the tunnel, and the infrared detection curve obtained has the characteristics of a normal field. When there is a hidden disaster source in front of the tunnel section or in any space outside the tunnel, the disaster field generated by the hidden disaster source will definitely be superimposed on the normal field, causing a certain section of the curve in the normal field to be distorted. The distorted section is called infrared anomaly. Infrared detection is to determine the existence of hidden disaster sources based on infrared anomalies. Hidden disaster sources refer to water-bearing faults, water-bearing caves, and underground rivers. The HW-304 infrared detector is a step forward based on the 303 model. It can store the detection field strength data in the instrument . After connecting it to the microcomputer with a communication cable, the detection data can be directly transmitted to the microcomputer to achieve fast and accurate mapping.

　　Infrared water detector use

　　Under complex geological conditions, especially in karst areas, hidden water bodies or water-bearing structures relative to tunneling may appear above the roof, below the floor, and outside the walls on both sides, in addition to appearing in front of the tunneling. In view of the complex hydrogeological characteristics, infrared detectors can achieve full-space and all-round detection. The specific geological forecast content is as follows:

　　1. Through advance detection, it is possible to predict whether there are water-bearing faults and caves within 30 meters ahead of excavation.

　　2. By detecting above the roof, it can be determined whether there are aquifers or water-bearing structures within 30 meters above the tunnel.

　　3. By detecting under the bottom plate, we can understand whether there are water-containing structures underneath to prevent delayed water inrush.

　　4. Conduct detection on the outside of both walls to find out whether there are water-bearing bodies or water-bearing faults within a range of 30 meters to prevent water-bearing faults from intersecting with the tunnel in front and causing large water inrush.