1. Overview of Harmful Gas Sensing: A harmful gas sensor is a device that converts the harmful gas content in the air into an electrical signal. The electrical signals generated by the sensors are processed, amplified and used in the field by the electronic circuit, and are subjected to various harsh environments and atmospheres, especially the sensors of the stationary instruments, which have long-term continuous operation and limited explosion-proof and power supply capacity. The requirements for hazardous gas sensors are very strict. After the conversion, the display and alarm of harmful gas content are realized. It can be seen that the sensor is the basic and core component of the harmful gas detection alarm device, and its merits and demerits determine the quality and function indicators of the harmful gas detection alarm device. 2. Generally, the sensor has the following items: (1) detection range and resolution; (2) detection accuracy and repeatability; (3) stability and zero drift; (4) reaction speed; (5) selectivity and anti-interference ability; (6) anti-poisoning ability and life (7) Resistance to environmental (temperature and humidity); (8) Safety, explosion-proof performance; (9) Interchangeability and easy maintenance; (10) Small size and light weight; (11) Small current and good power saving. Concerned about surprises Tag: sensor harmful gas electrical signal alarm device function indicator Previous: Cavitation of Changyuan Centrifugal Pump Next: IKO Bearing Selection, Use, Disassembly, Lubrication
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Harmful gas sensor and its characteristics