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This paper describes an idea of design and construction for a radial pulse wave detector, In acquiring arterial pulse signal noninvasively, a new combinational fiber-optic transducer was used which has a detecting part and a sensing part. The mechanism of detecting part is composed of special form of structure that can detect changing pulses in contact with skin, and transmits arterial wall movements to the sensing part. It consists of elastic reflector and optical fibers, which are arranged in a fiber pair. Then, the intensity of the reflected light will be proportional to the displacement changed by inclined reflector. Using this transducer, it expected to make a clinically useful tool for arterial pulse wave diagnosis, especially on the application of "MACK- CHIN" in the field of Korean traditional medicine, since : his transducer has a simple structure and has an easy and clear signal acquisition method.
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