LIF技术测量浓度场的影响因素分析  

Analysis of Effects for Measurements of Concentration in Water by Laser induced Flourescence (LIF) Technique

作　　者：黄真理[1] 李玉梁[1] 余常昭[1] 宋传琳[1] 

机构地区：[1]清华大学,国务院三峡工程建设委员会办公室

出　　处：《实验力学》1994年第3期232-240,共9页Journal of Experimental Mechanics

基　　金：国家自然科学基金;清华大学智能技术与系统国家重点实验室的经费资助

摘　　要：本文研究了作为示踪剂的荧光素钠的谱图，测定了荧光素钠在蒸馏水和普通自来水中的吸光系数，估算了荧光分子的平均寿命。最后，详细分析了浓度、激光功率、温度、ｐＨ值和截止滤光片对荧光强度的影响。In this paper, we obtained the spectra of sodium flourecein in a distilled water solution and common water solution, and then determined its absorption coefficients and estimated the average life--time of fluorescein molecule. Combining with image processing tevhnique, the effects of concentration, laser power, temperature, pHvalue and color filter on fluorescence intensity were discussed in detail.

关 键 词：激光诱导荧光法 湍流 浓度测量 浓度场 

分 类 号：O357.54[理学—流体力学]