High-sensitivity composite gas detector

• Main Authors: OUYANG LIRONG, WANG HUIFANG
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: DETECTING MASSES OR OBJECTS; EARTH DRILLING; FIXED CONSTRUCTIONS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MINING; PHYSICS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; TESTING

The utility model discloses a composite gas detector with high sensitivity in the technical field of gas detection, which comprises a support and a detector body, and the detector body comprises a central processing unit, a light source driving module, a pyroelectric sensor, a signal amplification module, a signal processor, a display screen, a control keyboard and an alarm. The top of the support is fixedly connected with a shell. The detector body, the hyperspectral camera and the visual camera can observe the internal structure of a drilling well, gas in the drilling well can be detected in time through the design of the detection port, and through the design of the light source driving module and the pyroelectric sensor, the gas in the drilling well can be detected in time. Differential amplification output can be formed through two transistors, a signal of the differential amplification output is sent to a two-stage operational amplifier composed of LM358 for signal adjustment, the preceding stage of the