Classification of gas sensors from detecting the type of gas

Classification of gas sensors from detecting the type of gas , the often divided into combustible gas sensor ( often using catalytic combustion , infrared, thermal conductivity , semiconductor type ) , toxic gas sensors ( generally using electrochemical , metal-semiconductor , photoionization , flame ionization type ), hazardous gas sensor ( often with infrared , ultraviolet , etc. ) , oxygen ( often using paramagnetic , zirconia ) and other type Camshaft Position Sensor; from the use of the instrument , into the portable and stationary ; obtained from the gas the way the sample is divided into diffuse ( i.e. sensor mounted directly on the object to be measured environment , the measured gas through natural diffusion in direct contact with Position Sensor element ) , suction ( suction pump is through the use of other means , to be tested gas is introduced into the Positioning Sensor sensing element detection. based on the measured gas is diluted , can be subdivided into full suction and dilution type, etc. ) ; from the analysis of gaseous components , and is divided into a single formula ( only for specific gas detection ) and compound of formula ( composition for simultaneous detection of multiple gases ) ; press Sensor detection principle , be divided into thermal , electrochemical , magnetic , optical , semiconductor type , such as gas chromatography type .