Keywords
Citation
Rigelsford, J. (2004), "Mobile Gas Detector", Sensor Review, Vol. 24 No. 4. https://doi.org/10.1108/sr.2004.08724dad.009
Publisher
:Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited
Mobile Gas Detector
Mobile Gas Detector
Applicant: John Tulip, CanadaPatent number: US6,750,467Publication date: 15 June 2004Title: Vehicle mounted gas detector
Keywords: Patents, Gases, Sensors
This patent presents a mobile gas detector, which is suitable for air-borne detection of methane and comprises a laser transmitter and signal analyser carried on a vehicle. The gas detector comprises: a laser transmitter and signal analyser carried within a vehicle; a laser absorption cell carried on the exterior of the vehicle; a light guide connecting light from the laser transmitter into the laser absorption cell; a photo-detector mounted with the laser absorption cell exterior to the vehicle to convert light that has traversed the laser absorption cell into electrical signals; and a cable connecting the photo-detector to the signal analyser. Preferably, the invention utilizes a laser transmitter that operates in the methane absorption band at 1,650nm, and the photo-detector is a photo-diode operating in photo-voltaic mode to avoid the need for an external power supply.
Jon Rigelsford