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Intrinsic Conductivity Measuring Condition and Data Processing for Space Insulating Material Based on Charge Decay Method
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Jinxiao WANG1, Yifeng CHEN1, Qing LIU2, Yong SUN3, Xiaogang QIN2, Shengsheng YANG2, Wei LI1, Wenjun TAN1
Insulating Materials | 2022, 55(6) : 101 - 106
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Insulating Materials | 2022, 55(6): 101-106
• Test and Analysis •
Intrinsic Conductivity Measuring Condition and Data Processing for Space Insulating Material Based on Charge Decay Method
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Jinxiao WANG1, Yifeng CHEN1, Qing LIU2, Yong SUN3, Xiaogang QIN2, Shengsheng YANG2, Wei LI1, Wenjun TAN1
Affiliations
  • 1College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China
  • 2Lanzhou Institute of Physics, Lanzhou 730000, China
  • 3Xujue Electricial Co., Ltd., Xuchang 461000, China
Published: 2022-06-20 doi: 10.16790/j.cnki.1009-9239.im.2022.06.018
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Aiming at the problerm of seleting energy in the intrinsic conductivity measurement by charge decay method,the intrinsic conductivity of polyimide was measured by charge decay method under the electron irradiation energy range from 5 keV to 20 keV. The influence of irradiated electron energy on the test results was studied, and the fitted method of surface potential decay data was improved by adding a polarization decay time constant. The results show that a higher irradiated electron energy causes a higher charged balance potential on the surface of insulating material, resulting in more serious polarization inside the dielectric, which affects the test results of the conductivity in charge decay method. The surface potential decay data can be fitted and interpreted well by the improved method, which provides an basis for the selection of irradiated electron energy.

charge decay method  /  intrinsic conductivity  /  irradiated electron energy  /  polarization
Jinxiao WANG, Yifeng CHEN, Qing LIU, Yong SUN, Xiaogang QIN, Shengsheng YANG, Wei LI, Wenjun TAN. Intrinsic Conductivity Measuring Condition and Data Processing for Space Insulating Material Based on Charge Decay Method[J]. Insulating Materials, 2022 , 55 (6) : 101 -106 . DOI: 10.16790/j.cnki.1009-9239.im.2022.06.018
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.06.018
  • Receive Date：2021-09-07
  • Online Date：2025-12-23
  • Published：2022-06-20
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History
  • Received：2021-09-07
  • Revised：2021-11-18
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Affiliations
    1College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China
    2Lanzhou Institute of Physics, Lanzhou 730000, China
    3Xujue Electricial Co., Ltd., Xuchang 461000, China
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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