Shandong Science ›› 2020, Vol. 33 ›› Issue (1): 68-74.doi: 10.3976/j.issn.1002-4026.2020.01.010

• Optical Fiber and Photonic sensingtechnology • Previous Articles     Next Articles

Research on laser online detection technology application of precision fermentation of CO2 tail gas

YU Peng-fei1a, WANG Xiao-shan1a, YU Zi-qiang1a, WEI Yu-bin1b, ZHANG Ting-ting1b, HU Jie2, LIU Tong-yu1b,2, WANG Zhao-wei1b*   

  1. 1.a.International School for Optoelectronic Engineering,b.Laser institute,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;2.Shandong micro-sensor photonics limited, Jinan 250103,China
  • Received:2019-09-29 Online:2020-02-20 Published:2020-02-13

Abstract: There is a great demand for online monitoring of various characteristic gases in the precision fermentation process. In this paper, based on the tunable diode laser absorption spectroscopy (TDLAS) technology, the carbon dioxide monitoring and analysis system was developed for the detection of gases in the precision fermentation process. The measurement range of 0~2% and the response time of 5.46 s were realized. In addition, the measurement error can be lower than 0.08% within the full measurement range. The results of field test demonstrated the advantages of high sensitivity, excellent stability, and reliability of the developed CO2 monitoring system. The CO2 monitoring system based on the TDLAS technology is extremely suitable for insitu characteristic gas monitoring and has great application potential in the precision fermentation process. 

Key words: precision fermentation process, TDLAS, characteristic gas, tail gas detection, online monitoring, CO2, laser gas sensor

CLC Number: 

  • TN247