Detection principle of nitrogen oxide detector
Detection principle of nitrogen oxide detector The key component of the nitrogen oxide detector is the gas sensor. Gas sensors can be divided into three categories in principle: A) Gas sensors using physical and chemical properties: such as semiconductor type (surface control type, volume control type, surface potential type), catalytic combustion type, solid thermal conductivity type, etc. B) Gas sensors using physical properties: such as thermal conduction type, optical interference type, infrared absorption type, etc.
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Introduction of Oxygen Concentration Detector
The oxygen concentration detector can perform continuous online concentration detection and on-site sound and light alarm, and play an early warning role for the safety of operation in dangerous sites. The oxygen concentration detector adopts imported electrochemical sensors and microcontroller technology, with stable signal and high precision. , good repeatability and other advantages, explosion-proof wiring is suitable for various hazardous places. The instrument is compatible with various control alarms, PLC, DCS and other control systems, and can realize on-site alarm and remote monitoring and alarm functions at the same time. Oxygen detection and alarm integrated machine is suitable for continuous online detection of oxygen concentration in various industrial environments and special environments and on-site sound and light alarms. It plays an early warning role in the operation safety of dangerous sites. It has the advantages of stable signal, high precision and good repeatability, and the explosion-proof wiring method is suitable for various dangerous places. The instrument is compatible with various control alarms, PLC, DCS and other control systems, and can realize on-site alarm and remote monitoring and alarm functions at the same time.
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Ozone Tester Circuit Principle
The ozone tester adopts the principle of ultraviolet absorption method, uses a stable ultraviolet light source to generate ultraviolet light, uses a light filter to filter out other wavelengths of ultraviolet light, and only allows the wavelength of 253.7nm to pass. After passing through the sample photoelectric sensor, and then through the ozone absorption cell, it reaches the sampling photoelectric sensor. The ozone concentration can be obtained by comparing the electrical signals of the sample photoelectric sensor and the sampling photoelectric sensor, and then through the calculation of the mathematical model.
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Industry News Precautions in the use of oxygen detectors
In the analysis of oxygen content, especially in the treatment of rheumatoid arthritis, since the oxygen content in the air is as high as 21% O2, it is very easy to contaminate and interfere with the sample if it is not handled properly, and the analysis result data will be incorrect. The main reason is the improper operation of the oxygen detector. Here are just a few factors that affect the measurement:
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The main products are gas emergency shut-off valves, gas alarms, insulating flanges for cathodic protection, insulating joints, gas pipeline safety self-closing valves, gas wall-hung boilers, lithium-ion batteries, etc.
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