Investigation of glucose concentration measurement based on tunable pulsed laser induced photoacoustic technique

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（z2）
• 页码范围: 88-91
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201311.S21701

摘要

A tunable pulsed laser induced photoacoustic (PA) measurement set-up is established in the forward mode to monitor in vitro glucose concentration.A series of experiments are investigated to verify the feasibility of this set-up and scheme.Peak-to-peak values (PPVs) of several glucose aqueous solutions are recorded and averaged 512 times at each wavelength.Experimental results demonstrate that the time-resolved PA profile of glucose solutions has a good agreement with the PA theories.The characteristic wavelengths of glucose solution are determined via differential method.The root-mean-square error (RMSE) of predicted concentration reaches 3.15 mg/dl at the optimum wavelength of 1 510 nm via least square (LS) fitting algorithm.