elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Terahertz Gas-Sensors: Gas-Phase Spectroscopy and Multivariate Analysis for Medical and Security Applications

Neumaier, Philipp F.-X. and Schmalz, K. and Borngräber, J. and Kissinger, D. and Hübers, Heinz-Wilhelm (2015) Terahertz Gas-Sensors: Gas-Phase Spectroscopy and Multivariate Analysis for Medical and Security Applications. IEEE SENSORS 2015, 1.-4. Nov. 2015, Busan, Südkorea. (Submitted)

[img] PDF - Registered users only
465kB

Abstract

We developed a terahertz (THz) gas-phase spectrometer based on transmitter(TX)- and subharmonic receiver(RX)-chips fabricated in SiGe BiCMOS. A tunable TX and TX-array for 245 GHz with output powers of Pout=0dBm and 7dBm and a 500 GHz TX-array with Pout=-7dBm acts as tunable narrow band radiation sources. The THz beam is detected by the heterodyne RX. The high-resolution 2f-spectra were obtained by TX-frequency modulation and lock-in amplification of the RXs’ intermediate frequency (IF). The fingerprint-like spectra support a substance detection with absolute specifity, which we confirmed in our foregoing study by using multivariate algorithms (MVA) like principal components analysis (PCA) and partial least squares regression (PLS). We tested volatile organic compounds (VOCs) known as biomarkers and/or are classified as harmful by the EPA. We found a 100% qualitative substance detection and 2% mass fraction accuracy for the components in mixtures we prepared.

Item URL in elib:https://elib.dlr.de/96396/
Document Type:Conference or Workshop Item (Speech)
Title:Terahertz Gas-Sensors: Gas-Phase Spectroscopy and Multivariate Analysis for Medical and Security Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neumaier, Philipp F.-X.philipp.neumaier (at) dlr.deUNSPECIFIED
Schmalz, K.IHP Frankfurt, OderUNSPECIFIED
Borngräber, J.IHP Frankfurt, OderUNSPECIFIED
Kissinger, D.IHP Frankfurt, OderUNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
Date:April 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Submitted
Keywords:THz, Millimeter-Wave, Spectroscopy, Gas-Sensor, 245 GHz, 500 GHz, Transmitter, Receiver, Multivariate Analysis. PCA, PLS, SIMCA, Medicine, Security, Gas mixtures, VOCs.
Event Title:IEEE SENSORS 2015
Event Location:Busan, Südkorea
Event Type:international Conference
Event Dates:1.-4. Nov. 2015
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Optimode (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems
Deposited By: Neumaier, Philipp
Deposited On:01 Jun 2015 06:54
Last Modified:01 Dec 2018 19:51

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.