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Gas-Sensing MEMS Interferometer Connects to Smartphones

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Air and sleep quality can be gauged by an optical gas sensor that attaches to smartphones. The VTT Technical Research Centre of Finland developed the device, which is based on Fabry-Perot interferometers and microelectromechanical systems (MEMS). It channels light through a sample and determines its composition based on the wavelength of light absorbed. Carbon dioxide is identified based on its strong absorption at 4.2 μm. In addition, a corresponding sensor technology can be used to simultaneously differentiate between other gases or substances based on the spectrum of their...Read full article

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    Published: August 2015
    BusinessindustrialEuropeFinlandVTTAnna RissanenSensors & DetectorsBiophotonicsinterferometersspectroscopyTech PulseTechnology NewsBioScan

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