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介绍一种测量血管内血液流速的新方法一光纤和混合光谱学技术。用一根光纤把激光引入血管内,运动的红血球对激光发生散射,用同一根光纤收集到散射光。通过测量与红血球流速成正比的多普勒频移而测出血液的流速。测量装置由相关器(correlator)、光电倍增管(PMT)、透镜1(L_1)、透镜2(L_2、偏振片(Analyzer)、光孔径(SLITS)、激光(Laser)、分囊器(BS)、陷阱(T
A new method for measuring the velocity of blood flow in blood vessels is introduced. An optical fiber and hybrid spectroscopy technique is introduced. The laser is introduced into the blood vessel with a fiber, the moving red blood cells scatter the laser, and the scattered light is collected with the same fiber. The blood flow rate was measured by measuring the Doppler shift proportional to the erythrocyte flow rate. The measuring device is composed of a correlator, a PMT, a lens 1 (L_1), a lens 2 (L_2, an analyzer, a SLITS, a laser, a BS) Trap (T