Space charge injection characteristic evaluation method of polypropylene elastomer blending material for cable

By obtaining current and sensor signal information in the sample to be tested in the polypropylene elastomer blend material, determining the space charge distribution and injection characteristics, the problem of low charge injection rate accuracy in traditional technology is solved, and the accuracy of the evaluation results is improved.

CN119715682AActive Publication Date: 2025-03-28XI AN JIAOTONG UNIV +2
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Patent Information

Application Number
CN202411699230.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-28
Estimated Expiration
2044-11-26

AI Technical Summary

Technical Problem

The accuracy of the charge injection rate at the metal/insulating interface is not high, resulting in insufficient accuracy of the evaluation results of space charge injection characteristics.

Method used

By obtaining current information and sensor signal information of piezoelectric sensors under preset testing conditions, the space charge distribution information is determined, and the space charge injection characteristics evaluation results are determined based on the current information.

Benefits of technology

It improves the accuracy of the evaluation results of space charge injection characteristics, and can accurately analyze the true injection current and charge transport mechanism under preset testing conditions.

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Abstract

The invention relates to a method for evaluating space charge injection characteristics of a polypropylene elastomer blending material for a cable. The method comprises the following steps: acquiring current information in a to-be-tested sample and sensor signal information of a piezoelectric sensor corresponding to the to-be-tested sample under the condition that the to-be-tested sample made of a polypropylene elastomer blending material is in a preset test condition; determining space charge distribution information according to the sensor signal information; and determining a space charge injection characteristic evaluation result according to the current information and the space charge distribution information. By adopting the method, the real injection current can be accurately analyzed based on the current in the to-be-evaluated sample under the preset test condition, and the accurate charge injection rate is obtained, so that charge transport in the to-be-evaluated sample is accurately analyzed by using the charge injection rate, and the accuracy of a space charge injection characteristic evaluation result is further improved.
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Citation Information

Patent Citations

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  • Detecting method for defect or impurity of insulator

    JP1994258380A

  • Optical sensor, information recording device, and information recording and reproducing method

    JP1997113861A

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