VTT Technical Center, Finland has developed a miniature gas sensor that can be connected to smartphones to monitor the air quality and sense how well is the person’s sleep.
Detection of internal air problem, sleep quality will be easier and can be done with higher precision using mobile care application which gauges carbon dioxide quantities.
Sensor developers are interested in using mobiles for gas measurement. Anna Rissanen, leader of VTT Research team said, “This is probably due to the spread of Internet of Things, which enables indirect observation of a range of environmental factors based on data gathered from single sensor or sensor network.”
The miniature gas sensor is based on Fabry-Perot Interferometer(FPI)-adjustable optical filters. The sensor developed by scientist Rami Mannila is based on principle of penetrating light at different wavelengths to determine the composition of carbon dioxide compound. Carbon dioxide is identified based on its strong absorption of light at wavelength of 4.2 micrometer.