A compact breath gas sensor system based on terahertz/millimeter-wave gas spectroscopy-Reference-Cited by-同舟云学术

A compact breath gas sensor system based on terahertz/millimeter-wave gas spectroscopy

Published:2022-09-26 Issue:11-12 Volume:76 Page:669-676
ISSN:0016-1136
Container-title:Frequenz
language:en
Short-container-title:

Author:

Rothbart Nick¹²,Schmalz Klaus³,Koczulla Rembert⁴⁵,Hübers Heinz-Wilhelm¹²

Affiliation:

1. Department of Physics , Humboldt-Universität zu Berlin , Berlin , Germany

2. German Aerospace Center (DLR), Institute of Optical Sensor Systems , Berlin , Germany

3. IHP—Leibniz-Institut für Innovative Mikroelektronik , Frankfurt (Oder) , Germany

4. Schön Klinik Berchtesgadener Land, Research Institute for Pulmonary Rehabilitation , Schönau am Königssee , Germany

5. Department of Pulmonary Rehabilitation , Philipps-University of Marburg, Member of the German Center for Lung Research (DZL) , Marburg , Germany

Abstract

Abstract We demonstrate a full-cycle breath gas sensor system based on terahertz/millimeter-wave gas spectroscopy. The sensor consists of a transmitter and receiver working around 250 GHz based on SiGe BiCMOS technology. Typical detection thresholds are in the ppm range depending on the respective molecule. The data analysis provides partial pressures of the investigated molecules by fitting of spectra which are measured by wavelength modulation. Beside the spectroscopic measurement and the data analysis, a full cycle of breath analysis includes the sampling and the conditioning of the sample tubes. The full cycle takes about 35 min per sample in average. As the system is compact and easy to operate, it allows for on-site analysis of breath samples in medical laboratories or hospitals.

Funder

Deutsche Forschungsgemeinschaft

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering

Link

https://www.degruyter.com/document/doi/10.1515/freq-2022-0131/pdf

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