CO2 sensor firm seeks partners in expansion push, with automotive a focus

June 01, 2017 //By Peter Clarke
CO2 sensor firm seeks partners in expansion push, with automotive a focus
In late 2016 Gas Sensing Solutions Ltd. (Cumbernauld, Scotland) appointed Ralph Weir as CEO with a charter to expand the business both within its present applications – and also into additional markets and geographies.

Weir is now seeking partners for the ten-year old manufacturer of CO2 sensors to help it break into new markets, particularly automotive. Weir reckons the solid technical background and design and assembly experience that Gas Sensing Solutions (GSS) has amassed means it is well placed to continue growing.

The company was founded in 2006 with investment fromTweed Renaissance Investment Capital and The Scottish Co-Investment Fund. Trading began in 2008 with an initial focus on safety, spillage, flue gas analysers, internal air quality (IAQ) and the heating ventilation and air conditioning (HVAC) sectors. GSS' technology is based on non-dispersive mid-range infrared light where CO2 absorbs light at 4.2- to 4.4-micron wavelength.

In fact, mid-IR light absorption is good for detecting multiple gases; from water vapor, nitrogen-containing molecules, hydrocarbons such as methane, Weir told eeNews Europe. However, how those gases are handled depends largely on such issues as concentration levels and accuracy and calibration requirements. GSS has a short path NDIR approach when measuring CO2 in relatively high concentrations and a reflective circular path to maximize path length through the gas for measuring low concentrations.  

Cozir ambient air optics with long optical path for low concentrations. Source: GSS.

The advantage GSS has is that it designs and manufactures its own III-V compound semiconductor LEDs and photodiodes and can tune the output, Weir said, adding GSS is the only sensor company to do this.

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