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VOLUME-BASED FIBER DROP FINGERPRINT BASED ON OPTOELECTRONIC LIQUID SIGNATURE ANALYZER

Q. Song1,* , Z. Qiu1, G. Zhang1

Affiliation

  1. State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instrument and Optoelectronic Engineering, Tianjin University, Tianjin 300072, China

Abstract

By merging the light intensity signal from the fiber drop analysis and the drop volume signal from the capacitive drop analysis or image drop analysis, a volume-based fiber drop fingerprint (VFDF) can be obtained. VFDF ensures the reproducibility of measurement against the variation of the feeding speed of the pump and improves the comparability of the VFDFs for different liquids. Preliminary sampling tests have been carried out. Visual features and qualitative differences can be observed in VFDFs of different kinds of liquids. Different brands of the same kind of liquid have different VFDFs too. The same liquid with different concentrations will also produce different VFDFs. Experimental results prove that it is feasible to measure the properties of liquids and to discriminate liquids based on VFDF..

Keywords

Liquid, drop analysis, Optoelectronic signature analyzer, Fiber drop analysis, Fingerprint.

Submitted at: April 6, 2004
Accepted at: June 10, 2004

Citation

Q. Song, Z. Qiu, G. Zhang, VOLUME-BASED FIBER DROP FINGERPRINT BASED ON OPTOELECTRONIC LIQUID SIGNATURE ANALYZER, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 2, pp. 393-398 (2004)