AN APPARATUS FOR DETECTING LOW AMOUNT OF GAS LEAK

摘要

The present invention relates to a gas detection device, and more particularly, to a display device having a control unit and display means designed to detect a trace amount of specific gas. The present invention is a detection unit whose resistance is variable depending on the operating temperature and the concentration of the adsorbed gas; Heating means for heating the detection unit; An output unit for converting a resistance value according to the gas concentration detected by the detection unit into a current or a voltage; A control unit calculating a gas concentration value corresponding to a current value output from the output unit; A gas detection device comprising: a display means for displaying the gas concentration value calculated by the control unit, wherein the gas concentration value at a predetermined time is set to a reference value of 0, and the gas concentration after that is set as a relative value as a negative value. I made it so.