应用于生物医学的光声光谱技术的改进和实验研究  

The improvement and the experiment research of the PAS technique applicated in biomedicine

作　　者：刘金龙[1,2] 唐志列[1] 徐险峰[1] 冯永振[3] 

机构地区：[1]华南师范大学物理系,广州510631 [2]华南农业大学,广州510642 [3]广东医学院,湛江524023

出　　处：《激光杂志》2002年第4期66-67,共2页Laser Journal

基　　金：广东省自然科学基金项目(980046)

摘　　要：改进的光声光谱归一化技术,避免了普通的分光法归一化光声光谱技术中分束镜以及锁相放大器动态范围的影响和限制,实现宽光谱范围内准确的光谱测量。氙灯光源功率起伏用修正项修正,误差在5%以内,实现各次实验数据的可比性。A normalizing photoacoustic spectrum(PAS) technique improved .which avoids the influence and the limit from the spectroscope used in the conventional normalizing technology,removes the limit from scope of the ratio of the amplifier,makes it possible to measure in a wide rang of wavelength,is offered. The power gurgitation of xenon lamp is resolved through the measurement of carbon black sample at a certain wavelength, refining its relative error in 5%,realizing the comparability among various data measured at different time.

关 键 词：归一化技术 生物医学 光声光谱技术 

分 类 号：O433[机械工程—光学工程]