An improved arterial pulsation measurement (APM) system that uses three LED light sources and a CCD image sensor
to measure pulse waveforms of artery is presented. The relative variations of the pulses at three measurement points near
wrist joints can be determined by the APM system simultaneously. The height of the arterial pulsations measured by the
APM system achieves a resolution of better than 2 μm. These pulsations contain useful information that can be used as
diagnostic references in the traditional Chinese medicine (TCM) in the future.
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