The present invention relates to a portable gas sensor for a mine, and more particularly, to a portable gas sensor for a mine for accurate measurement over time by automatically correcting the measured values of the sensors that are aging over time through a computing device. will be. An object of the present invention is to propose a portable gas sensor for a mine that can solve the problem of lowering the accuracy of the measured value with aging over time to be suitable for a mine environment. The present invention can have an effect of obtaining an accurate output value through a time-dependent correction using a mathematical formula to degrade the output value of a sensor due to aging in a special space such as a mine where temperature and humidity do not change when measuring gas concentration. . In addition, the present invention has an effect of reducing the time and cost for sensor replacement and easy maintenance because there is no separate calibration operation until the sensor has reached the end of its service life by automatically calibrating the sensor. .
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