The sensor, which measures 10 mm x 10 mm, can replace advanced, expensive optical devices containing lenses and grids in what are commonly called spectroscopic tools. The sensor is also more reliable than traditional optical devices that require calibrating and maintenance. This chip does not corrode, is robust and provides quick results from analyses. The chips can be produced in the same type of machines that make compact discs.
The plastic chip was originally developed to detect different types of plastic; it is now used in bottle recycling machines and in a recently developed CO2 sensor that controls ventilation in buildings. As the chip is so robust, it can be used in harsh environments, such as in the depths of an oil well to detect gases. It can measure both the blood’s oxygen intake and blood sugar levels in the human body. It can also be used in the quality control of food in supermarkets where it measures both fat and water content.
The technology in the chip is called DOE,which is an abbreviation for Diffractive Optical element. It is here that the secret lies. The chip contains a synthetic hologram that functions as a light filter. The hologram diffracts the light reflected by an object or gas and is able to identify energy in the infrared spectrum. The hologram is designed to measure the energy at particular wavelengths because each substance emits a number of spectral peaks that are specific to that particular substance. While the eye sees twodimensional figures, a hologram reproduces the light waves instead of the actual object.
The chip can therefore be used to identify or check the quality of substances in many contexts, says SINTEF research scientist Odd Lovhaugen.The SINTEF Group is the largest independent research organisation in Scandinavia, based in Trondheim.
The research scientists have now taken out a patent, based on the same technology, for a device to measure alcohol. The device can test the level of alcohol on the spot in a driver’s blood and, if it is certified to do so, will be able to replace the blood samples that currently need to be tested by forensic laboratories. The scientists say the chip will give less ambiguous results than the traditional methods in use today, which employ traditional spectroscopy.
Odd Løvhaugen | alfa
Novel breast tomosynthesis technique reduces screening recall rate
21.02.2017 | Radiological Society of North America
Biocompatible 3-D tracking system has potential to improve robot-assisted surgery
17.02.2017 | Children's National Health System
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
24.02.2017 | Life Sciences
24.02.2017 | Life Sciences
24.02.2017 | Trade Fair News