Abstract
In this paper, a two channel abdominal PPG instrumentation is developed. The proposed instrument consists of IR-LED and its driver, photo-detector and data acquisition card. The modulation frequency generation, demodulation and digital signal processing is done completely in the digital domain using LabView. The results show that the developed instrument is able to acquire signal from the abdomen even at 4 cm source to detector separation. This instrument is intended for future application in trans-abdominal fetal heart rate detection. © 2008 Springer-Verlag.
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Gan, K. B., Mohd Ali, M. A., & Zahedi, E. (2008). Two channel abdominal PPG instrumentation. In IFMBE Proceedings (Vol. 21 IFMBE, pp. 691–693). Springer Verlag. https://doi.org/10.1007/978-3-540-69139-6_172
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