Title :
An 8-channel skin impedance measurement system for acupuncture research
Author :
Thong, Tran ; Colbert, Agatha P. ; Larsen, Adrian P.
Author_Institution :
Dept. of Sci. & Eng., Oregon Health & Sci. Univ., Beaverton, OR, USA
Abstract :
An 8-channel skin impedance measurement system for acupuncture research has been developed. The underlying model of the skin used is a parallel R & C network. Pulses are used to measure the R and C values. The measurement circuit is time multiplexed across the 8 channels at the rate of 2 measurements per second, leading to a complete set of measurements every 4 seconds. In static tests, the system has been operational for over 2 days of continuous measurements. In preliminary human tests, measurements over 2 hours have been collected per subject.
Keywords :
RC circuits; bioelectric phenomena; biomedical measurement; electric impedance measurement; physiological models; skin; acupuncture research; eight-channel skin impedance measurement system; human tests; measurement circuit; parallel R-C network; skin model; static tests; time 2 day; time 2 h; time 4 s; Acupuncture; Amplifiers, Electronic; Electric Conductivity; Equipment Design; Equipment Failure Analysis; Humans; Plethysmography, Impedance; Reproducibility of Results; Sensitivity and Specificity; Skin Physiological Phenomena;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5335156
