Title :
A spectrophotometric analysis device for continuous or on-line measurement of solution concentration
Author :
Tang, Yawei ; Jiang, Kai ; Zhu, Fan ; Lou, Kaikai ; Fu, Xiuquan ; Tu, Yuewen
Author_Institution :
Key Lab. of Biomed. Eng. of Minist. of Educ., Zhejiang Univ., Hangzhou, China
Abstract :
A newly designed variable optical path length (VOPL) spectrophotometric analysis device for measurement of solution concentration is presented. The VOPL device can eliminate the measurement errors caused by the instability of light source, sensors and detector circuit. Compared to traditional spectrophotometric methods, it can further eliminate the errors caused by the corrosion or bioadhesion on optical elements and so on. Experimental results show that the VOPL device can obtain an accurate and much more stable calibration curve of concentration vs. absorbance compared to usual methods.
Keywords :
light sources; measurement errors; spectrophotometers; VOPL device; bioadhesion; continuous measurement; detector circuit; light source; measurement errors; on-line measurement; optical elements; sensors; solution concentration; spectrophotometric analysis device; variable optical path length; Biomedical optical imaging; Calibration; Optical fiber sensors; Optical fibers; Optical scattering; absorbance; concentration calibration; concentration measurement; spectrophotometric analysis method; variable optical path length;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5964015
