Title :
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
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;
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
DOI :
10.1109/ICBBE.2009.5162167
