CASE STUDY: Single pixel camera and gas imaging
There is a gap in the market for a low-cost, small-sized, low-power and highly portable remote gas detection system.
Working with M-Squared Lasers Ltd., QuantIC has developed a low-cost imager that can produce real time video of methane gas. GasSight uses a telecoms laser diode to illuminate a scene at 1.65μm, exactly the wavelength corresponding to the absorption of methane gas. This image of the methane cloud is overlaid upon a high resolution RGB image of the overall scene, giving a composite full colour image where the methane appears as a green cloud.
The prototype camera has already demonstrated pure methane detection in a laboratory setting at 3m. Our challenge for the next stage will be to increase the sensitivity of the system so that its operational range can be increased to 10 meters or more and be mounted on a drone.
First published: 2 November 2021