hydrogen sulfide detector is the 1 instrument used to detect the concentration of hydrogen sulfide gas leakage, and this sensor, which is usually used to detect gas composition and concentration, can be called as a gas detector sensor, and its sensor is an important part of the product. However, in the process of use, due to the different uses and applications, hydrogen sulfide detector sensors can also be divided into many types. Do you know the types of Hydrogen Sulfide Detector sensors? The following is a brief introduction by yi yun Tian:

sensor type of hydrogen sulfide detector:

1. Primary cell type gas sensor

The principle of primary cell type gas sensor is the same as that of dry cell we use, however, the carbon manganese electrode of the battery was replaced by a gas electrode. Taking an oxygen sensor as an example, oxygen is reduced at the cathode and electrons flow through the current meter to the anode, where the lead metal is oxidized. The magnitude of the current is directly related to the concentration of oxygen. This sensor can effectively detect oxygen, sulfur dioxide, etc.

2, constant potential electrolytic cell type gas sensor

This sensor is very effective for detecting reducing gases, its principle is different from that of the primary battery sensor. Its electrochemical reaction occurs under the force of current, and it is the 1 sensor for real Coulomb analysis. This sensor has been successfully used in the detection of carbon monoxide, hydrogen sulfide, hydrogen, ammonia, hydrazine, and other gases. It is the mainstream sensor for the detection of toxic and harmful gases.

3, concentration cell type gas sensor

this sensor has electrochemically active gas on both sides of the electrochemical cell, it will spontaneously form a concentration electromotive force, and the magnitude of the electromotive force is related to the concentration of the gas. Successful examples of this kind of sensor are automotive oxygen sensors and solid electrolyte carbon dioxide sensors.

4, limiting current gas sensor

there is a sensor for measuring oxygen concentration using the principle that the limiting current in the electrochemical cell is related to the carrier concentration to prepare oxygen (gas) concentration sensor, it is used for oxygen detection of automobiles and oxygen concentration detection of molten steel.

In summary, there are three common sensor types for hydrogen sulfide detectors. The sensor is the main component of the hydrogen sulfide detector. When we select the gas detector, we must pay more weight to its sensor parameters, so as to better guarantee the performance of the gas detector and extend its service life.