| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas concentration measuring method and a gas concentration measuring apparatus which accurately (correctly) calculates a gas concentration using a gas-detecting tube.SOLUTION: The gas concentration measuring method using the gas-detecting tube includes, a permeation step S1 of passing gas through the gas-detecting tube, a photographing step S2 of photographing with a camera the gas-detecting tube through which the gas passes, a color change rate calculation step S3 of calculating the rate of the color change by the gas in the gas-detecting tube by analyzing the image data of the gas-detecting tube photographed by the camera, a detection step S4 of detecting the humidity of the gas by a humidity sensor, and a gas concentration calculation step S5 of calculating the gas concentration by correcting the color change fraction due to the humidity of the gas. |
