The use of gas sensor for mineral exploration

Gas sensor is a kind of converting the information such as the composition, concentration of the gas into measurable electrical signal output a detection device, has a certain application in multiple areas. Gas sensor is widely used in mineral exploration, for all kinds of special gas in the mineral can effectively detect.

in the middle of the karakum desert of turkmenistan, one is called 'hell's gate' artificial large crater. It is reported, this is by the Soviet union in 1971 geologists digging gas here, underground rig collapsed to form the hole. For fear of the pit may release toxic gases, geologists have ignited pit gas, after the fire has been burning for more than 40 years. From turkmenistan's capital, alzheimer's, now he's about 260 kilometers Derweze village, still can clearly see the hole in the blaze of golden light. But if there is a gas sensor may, of course, to avoid this situation.

we can easily measure the current gas by gas sensor in all kinds of gas concentration. At the time of mineral exploration we can use gas sensors to detect the contents of the gas in the mine, detection of toxic gas concentration, if there is a burning and explosion danger, is to determine whether to send the well, thus greatly avoid the personnel and property losses in the process of detection, more do not form like 'hell's gate' artificial large crater.

gas sensor is one of the main parameter sensitivity, once the gas sensors sensitivity is not work greatly limits its application scope, because for many nuances of gas can be fatal. So we must improve the production technology of gas sensor, working to develop high sensitivity of gas sensors.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor