A Design Proposal of a Reconfigurable Filter for an Optical Blood Oxygen Analyzer

Author

Joglekar, Nikhil ; Veljanovski, Ronny ; Zayegh, Aladin ; Mitra, Jatin

Author_Institution

Fac. of Health, Eng. & Sci. Victoria Univ., Melbourne, VIC, Australia

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

This paper presents the design of a novel controller for a reconfigurable filter for the front end of an optical blood Oxygen sensor. The reconfigurability of the filter is dependant on the magnitude of the diode´s current and is implemented with a feed forward loop from the ADC output. A relation between the output of the diode and the noise in the signal is proven in this paper. The reconfigurable filter enables a considerable amount of saving in power consumption and processing units and is a step towards implementing a portable and efficient blood gas analyzer for a point of care solution.

Keywords

FIR filters; analogue-digital conversion; biocontrol; biomedical measurement; feedforward; gas sensors; optical sensors; oxygen; ADC; FIR filter; O₂; blood oxygen analyzer; controller; diode; feed forward loop; optical sensor; reconfigurable filter; Blood; Diodes; Feeds; Optical control; Optical design; Optical filters; Optical noise; Optical sensors; Oxygen; Proposals;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162167

Filename

5162167