1231 局所血流速測定用小型光ファイバー LDV センサの開発

概要

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In order to measure local blood velocity in blood vessel, we have developed a miniaturized fiber optic LDV sensor. We have improved our optical system in order to measure local velocity of full blood and to make the sensor head capable of receiving stronger scattered light of higher quality. A small probe (o.d.=1.2mm) has been developed so far and it has been able to be easily inserted blood vessel in a hypodermic needle. However, this probe has been too big for measuring local blood velocity. In order to overcome this problem, we have tried to miniaturize our probe. A convex fiber tip has been made by a chemical etching, in which a quartz fiber is etched in aqueous solution of fluorhydric acid (HF). This type of sensor has shown a capability of measuring local velocity of nearly opaque fluid flow.
一般社団法人日本機械学会の論文
2000-07-31