Oxygen sensor for indirect calorimetry based on Ruthenium fluorescence quenching

Author

Pirrami, L. ; Wicht, J. ; Debrot, F. ; Rosspeintner, A. ; Vauthey, E. ; Aebischer, J.-N. ; Mazza, M.

Author_Institution

Univ. of Appl. Sci. - Western Switzerland, Fribourg, Switzerland

Volume

1

fYear

2011

fDate

17-19 Oct. 2011

Firstpage

123

Lastpage

126

Abstract

Estimation of the body energy expenditure is a key issue for monitoring and understanding obesity and other nutritional problems. Indirect calorimetry estimation, based on oxygen and carbon dioxide measurements, is the only way to achieve this result. In this paper a compact yet efficient oxygen sensor is presented as a key component for this application. Ruthenium fluorescence is used as sensing element due to the strong quenching effect in presence of oxygen. An FPGA-based TDC and data retriever have been implemented granting a high degree of freedom in terms of tunability and resolution.

Keywords

biomedical measurement; calorimetry; chemical sensors; fluorescence; radiation quenching; ruthenium; FPGA-based TDC; Ru; body energy expenditure estimation; carbon dioxide measurement; data retriever; indirect calorimetry estimation; nutritional problems; obesity; oxygen measurement; oxygen sensor; quenching effect; ruthenium fluorescence quenching; sensing element; Atmosphere; Atmospheric measurements; Educational institutions; Fluorescence; Nitrogen; Pollution measurement; Steady-state; fluorescence quenching; oxygen sensor; time-to-digital converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference (CAS), 2011 International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-61284-173-1

Type

conf

DOI

10.1109/SMICND.2011.6095733

Filename

6095733