The invention relates to an
infrared environmental gas
remote sensing method and an
infrared environmental gas
remote sensing device, which belongs to the environmental
gas monitoring method and the environmental
gas monitoring device. An
infrared transmitter and a transmitting-end infrared gas sensor of the device are installed on a rotary holder; an infrared
receiver is provided with two infrared receiving windows, i.e. a first infrared receiving window and a second infrared receiving window, a first photoelectric receiving
pipe is correspondently connected with the first infrared receiving window, a second photoelectric receiving
pipe is correspondently connected with the second infrared receiving window, and both the output end of the first photoelectric receiving
pipe and the output end of the second photoelectric receiving pipe are connected with the input end of a
signal processor; a receiving-end infrared gas sensor is connected onto the infrared
receiver; and the rotary holder is provided with a
stepper motor. The detection method comprises the following steps of detection of average concentration and acquisition of gas distribution information. The infrared environmental gas
remote sensing method and the infrared environmental gas remote sensing device have advantages that the environmental gas which is distributed in a space can be monitored, the interference problems of the environmental dust and
moisture can be well solved, and the method and the device are suitable for the
gas monitoring in the fields such as a security environment, carbon emission,
environmental protection and the like.