Fuel cell voltage attenuation quick determination method and device |
Title： |
| Fuel cell voltage attenuation quick determination method and device |
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Application Number： |
200710176444 |
Application Date： |
2007/10/29 |
Announcement Date： |
2008/03/19 |
Pub. Date： |
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Publication Number： |
101144850 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G01R 31/36, G01R 19/00, H01M 8/04 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Tong Meng, Yang Fuyuan, Wang Ying, Huang Haiyan, Lu Languang, Pei Pucheng, Ouyang Minggao |
Key Words： |
Fuel cell, voltage attenuation, quick determination |
Abstract： |
The present invention discloses a quick voltage attenuation measuring method and the device thereof for the fuel cell, and belongs to the clean energy technology field. The quick measuring device is used to respectively connect the test circuit of the fuel cell to be tested and the sub-circuit of a reference cell with the in-phase input terminal and the reversed phase input terminal of a differential amplifier, and to connect the output terminal of the differential amplifier with a microprocessor. The quick measuring method is used to first determine the voltage attenuation and the power attenuation as a physical quantity for representing the service life or the durability of the fuel cell, to transform the measuring object from the output voltage of a single-plate or a galvanic pile into the attenuation or the relative attenuation of the output voltage of the single-plate or the galvanic pile at the front stage, and to measure the attenuation of the output voltage directly, and a normal precise amplifier and a simulated switch can be adopted at the back stage; the output of the differential amplifier can be send to the microprocessor for a further process after being transformed by the modulus, thus the voltage attenuation and the power attenuation of the fuel cell to be tested can be obtained for estimating the service life or the durability of the fuel cell. |
Claim： |
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Priority： |
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PCT： |
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