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Computer automated measurement method of solid oxide fuel cell (SOFC) electroconductance

An automatic measurement, electrode conductance technology, applied in measurement devices, measurement of electrical variables, measurement of resistance / reactance / impedance and other directions, can solve the problems of difficult to grasp the accuracy of recorded data, low experimental efficiency, frequent equipment operation, etc., to improve the measurement Efficiency and measurement accuracy, economic benefits, and cost-effectiveness

Inactive Publication Date: 2010-04-28
DALIAN UNIV OF TECH
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Problems solved by technology

Traditional conductivity measurement mostly adopts outdated measurement methods such as instrument detection at room temperature, manual operation, and manual polling on duty to record data. The equipment is frequently operated, the accuracy of the recorded data is difficult to grasp, and the experimental efficiency is low; patent application: a virtual instrument control Four-electrode conductivity testing device, (application number: 200810106138; applicant: Beijing University of Technology), this patent application is only applicable to conductivity measurement at room temperature

Method used

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  • Computer automated measurement method of solid oxide fuel cell (SOFC) electroconductance
  • Computer automated measurement method of solid oxide fuel cell (SOFC) electroconductance
  • Computer automated measurement method of solid oxide fuel cell (SOFC) electroconductance

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Effect test

Embodiment 1

[0016] Embodiment 1: Realize optional setting of programmable parameter table parameter measurement

[0017] For the same set of SOFC electrode conductance parameters, the calculated conductance values ​​are different under different temperature environments. In order to automatically measure the conductance d of the SOFC electrode, it is necessary to obtain the temperature environment parameters and calculate the conductance-related parameters of the SOFC electrode in the micro-reflector device during the temperature programming process under the given condition of the electrode current, where the temperature environment parameters include the temperature of the micro-reflector device section Td and reactor temperature Tf, conductance related parameters include micro-reactor cavity voltage E and SOFC electrode voltage U. The programmable parameter table divides these measurement parameters into two types: measurement parameters and optional measurement parameters. Among them,...

Embodiment 2

[0018] Embodiment 2: Realize the multiple selection method of the measurement parameter download function to save data

[0019] By default, the historical parameter table in the database downloaded last time is loaded into the memory and the current table. You can create a new blank table for parameter setting, or select Zhi Chi to load the historical parameter table in the database into the current memory. After the parameter setting is completed, select Naoluecai, update the flag variable (m_bDataChangeFlag) according to the parameter each time, query whether there is any data change in the parameter table, and download it in two ways. One is to transmit the parameters to the database for storage and download and transmit them to the field device for storage at the same time, and the other is to only download and save the parameters without transmitting them to the database for storage. If it is detected as new setting data, save it in the first way, submit and save the pro...

Embodiment 3

[0020] Example 3: Realize a seamless and continuous programmed heating process with any length of the heating section

[0021] Existing temperature controllers that support computer communication can provide a maximum temperature rise section of 30 sections, and each temperature rise section includes two parameters: segment temperature T and time period C. In order to meet the continuous temperature control requirements of any length of the temperature rise section, the key is to solve When the download parameters are running, there may be a time-dependent phenomenon, so as to ensure the continuity of the download parameters in time. In the present invention, for the programmed temperature increase of more than 30 sections (providing a maximum length of 100 sections), the length of the 30 heating sections in the temperature controller is used as a complete heating area in the program, and on this basis, it is equally divided into two operating intervals , each operating interv...

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Abstract

The invention provides a computer automated measurement method of solid oxide fuel cell (SOFC) electroconductance, belonging to the technical field of chemical energy materal performance test, which is characterized by realizing parameter measurement selective setup of a programmable parameter table and dividing parameters in the programmable parameter table into two categories of measurement parameters and selective measurement parameters, namely whether the selective measurement parameters need to be measured can be selected; realizing multiple selection methods of measurement parameter download function for storing data in a database and field equipment; and realizing random-length seamless continual temperature programming process in a temperature increasing stage and adopting a method for downloading the temperature increasing stage in a recursive partitioning manner to solve the problem of extending the length of the temperature increasing stage limited by field temperature controller to cause the temperature increasing process to be in seamless and continual operation. The realization of the method changes the traditional manual measurement method, extends and enhances the self functions of the temperature controller, and leads the measurement system to have flexible operation efficiency, higher cost performance and high precision and efficiency of automatic measurement of the SOFC electroconductance.

Description

technical field [0001] The invention relates to a conductance measurement method, in particular to a computer automatic measurement method for SOFC (solid oxide fuel cell) electrode conductance. Background technique [0002] During the preparation process of medium and high temperature SOFC, the electrode conductance at different temperatures has a great influence on the performance of the prepared SOFC. Most of the electrode materials to be tested are semiconductors, and the conductance changes little with temperature. Traditional conductivity measurement mostly adopts outdated measurement methods such as instrument detection at room temperature, manual operation, and manual polling on duty to record data. The equipment is frequently operated, the accuracy of the recorded data is difficult to grasp, and the experimental efficiency is low; patent application: a virtual instrument control Four-electrode conductivity testing device, (application number: 200810106138; applican...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
Inventor 杨素英仲崇权王萌
Owner DALIAN UNIV OF TECH
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