Invention after Invention!!Researchers are all set with their mind, flashing the glory of the world. VTT Technical Research Center of Finland developed the miniature Gas Sensor to monitor air quality and sense how well a person sleeps, by connecting it to a smartphone or mobile device.
Researchers quoted, "Gas measurements made with smartphones will make activities such as the detection of internal air problems easier. In addition, sleep quality will be measurable with greater precision, using mobile health-care applications which gauge carbon dioxide quantities". After these words, many sensor developers are eager to use this sensor with their smartphones to measure the gas concentration. Further Anna Rissanen, leader of the VTT research team, said, "This is probably due to the spread of the Internet of Things (IoT), which enables indirect observations of a range of environmental factors based on data gathered from single sensors or sensor networks. Many day-to-day issues, such as precision and efficiency in the workplace, can depend on carbon dioxide levels and internal air quality".
The sensor is based on Fabry-Perot interferometers (FPI) – adjustable optical filters along with the sleep quality feature that can be monitored by measuring the sleeper’s exhalations to know the quantity of carbon dioxide. Team’s senior scientist Rami Mannila made the device based on channeling light through the sample being analyzed. The compound composition can be defined by the quality of light wavelength penetrability by the sensor. Strong absorption of light at a wavelength of 4.2 micrometers can help detecting the amount of Carbon dioxide produced.
VTT has not only developed this, but it has a bulk of technologies to furnish. Over the years, the team has developed various spectroscopy-based applications, such as hyper-spectral cameras for nanosatellite – and drone-based environmental monitoring, the early detection of skin cancer and fuel analysis for emission minimization.
Further highlighting the fact, the new tiny gas sensor can be clubbed with the corresponding sensor technology to detect the other gases in the room based on the spectrum of their absorption peaks at various infra-red wavelengths. Moreover, MEMS sensor tech can be mass produced to help large-volume manufacturers to enable large-volume products based on the spectral analysis of substances.
Source: firstpost.com
