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北海道大学应用电气研究所的松本教授等人根据三角测量原理测定照射到身体表面的激光束的反射散射光,开发出通过测定点的微小的位置变化来监视人的呼吸和心脏搏动状况的装置。采用该装置能够避免因接触和压迫而引起人体产生特殊的反射等不利因
Professor Matsumoto Hokkaido University Institute of Applied Electric and others measured the scattered light of the laser beam irradiated to the body surface based on the principle of triangulation and developed a device for monitoring the respiration and the heartbeat condition of the human by measuring the minute position change of the point. The device can be used to avoid contact and oppression caused by the human body produces a special reflection and other adverse factors