Title :
Terahertz gas-sensors: Gas-phase spectroscopy and multivariate analysis for medical and security applications
Author :
Philipp Neumaier;Klaus Schmalz;Johannes Borngräber;Dietmar Kissinger;Heinz-Wilhelm Hübers
Author_Institution :
Institute of Optical Sensor Systems, German Aerospace Center, Berlin, Germany
Abstract :
This paper describes a spectroscopic system for gas sensing applications. It is based on SiGe transmitters (TXs) and receivers (RXs) operating at frequencies around 245 GHz and 500 GHz. 2f spectra of volatile organic compounds (VOCs) were obtained using wavelength modulation spectroscopy (WMS). Chemometrical analysis of the spectra is performed by applying several multivariate analysis (MVA) techniques.
Keywords :
"Absorption","Gas detectors","Spectroscopy","Silicon germanium","Frequency modulation","Methanol","Predictive models"
Conference_Titel :
SENSORS, 2015 IEEE
DOI :
10.1109/ICSENS.2015.7370673
