The Real-time Measurement System Research In Microbial Fuel Cell Anode Indoor Temperature Field Distribution Based On The Distributed FBG Sensing Array

In recent years, people pay more attention on energy consumption and environmental pollution problems with the strong sustainable development of industrialization. Microbial fuel cell(MFC) become a research hotspot because it can produce electricity during in the sewage treatment. The characteristics of MFC may be produced great economic benefits in the sewage treatment and production capacity. Now the MFC also cannot be used directly into the sewage treatment plant is mainly due to its electricity production efficiency is low and the consumption rate of organic matter in sewage is slow. Fiber Bragg grating(FBG) because of its small size, high precision, corrosion resistance, the advantages of good real-time get a lot of application in the field of biochemistry. MFC internal temperature field distribution are the important factors that affect the efficiency of electricity production. Now for measuring the temperature field distribution inside the MFC is less. It will be a powerful help to study how to improve the MFC electricity production rate if can achieve real-time measurement of the temperature field distribution inside the MFC. And also can further promote the FBG sensing technology applied in the field of biochemistry.The main topic of this paper based on FBG sensing array real-time measurement of MFC anode temperature field distribution. We first in-depth study of MFC production principle and working principle and FBG temperature sensing principle and division technology. We obtain the design schemes of MFC and FBG sensing array on the basis of these theories. According to the design we made experiments with MFC and FBG sensor arrays. Finally made the FBG sensing array encapsulated into MFC internal anode chamber, then build measurement system of MFC anode chamber temperature field distribution in real-time measurement. This topic main research content is as follows:(l)Research of MFC production material and the working principle, design the production of MFC, based on the MFC scheme can make stable operation.(2)Further study of principle of FBG temperature sensing and FBG multiplexing technology, produce out the FBG sensor array to measure temperature field. By the detection of the distilled water experiment temperature characteristic of the FBG sensing unit and sensing the presence of wavelength drift overlap between units.(3)Make the MFC anode chamber temperature real-time measurement system and by it we can monitor the anode chamber temperature field in real-time. According to the principle of temperature sensing we can calculate corresponding temperature through demodulation instrument get the real-time wavelength of FBG sensing units.(4)Analysis the temperature filed data of MFC in growth, stability and ageing. We can infer the distribution of microorganisms in the anode chamber by temperature field distribution. It will provide strong support for enhancing the efficiency of MFC electricity studies.