Gas detector advantages and disadvantages of the introduction of the description
A gas detector is an instrumentation tool for gas leakage concentration detection, mainly portable/handheld gas detectors. It mainly uses gas sensors to detect the type of gas present in the environment. Gas sensors are sensors that are used to detect the composition and content of gases. It is generally accepted that the definition of a gas sensor is based on the classification of the target to be detected, that is to say, any sensor used to detect the composition and concentration of a gas is called a gas sensor, regardless of whether it is used by a physical method, or by a chemical method. For example, sensors that detect gas flow are not regarded as gas sensors, but thermally conductive gas analysers are important gas sensors, even though they sometimes use broadly the same detection principle.
A gas detector is an instrumentation tool for gas leakage concentration detection, mainly portable/handheld gas detectors. Gas sensors are used to detect the type of gas present in the environment. Gas sensors are sensors that are used to detect the composition and content of a gas.
Benefits:
Semiconductor gas sensors can be effectively used to detect methane, ethane, propane, butane, alcohol, formaldehyde, carbon monoxide, carbon dioxide, ethylene, acetylene, vinyl chloride, styrene, acrylic acid and many other gases. In particular, these sensors are inexpensive and suitable for residential gas detection needs.
The following semiconductor gas sensors are successful: methane (natural gas, biogas), alcohol, carbon monoxide (city gas), hydrogen sulphide, ammonia (including amines, hydrazines). High-quality sensors for industrial detection needs
Disadvantages:
Less stable and more affected by the environment; in particular, the selectivity of each sensor is not unique and the output parameters cannot be determined. Therefore, it is not suitable for applications where metrological accuracy is required.
