Device and method for testing reliability of power sensor

Through a test device that simulates a high-voltage strong magnetic composite environment, the Helmholtz coil and parallel plate capacitors generate controllable magnetic and electric fields, solving the reliability test problem of the sensor in the composite environment, achieving more accurate evaluation and long-term stability evaluation.

CN120405541APending Publication Date: 2025-08-01CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2
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Patent Information

Application Number
CN202510358178.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

Existing sensor reliability testing equipment cannot simulate high-voltage strong magnetic composite environment, and it is difficult to meet the reliability evaluation needs of sensors under actual working conditions.

Method used

The magnetic field generation unit and the electric field generation unit are combined to generate a controllable magnetic field and a uniform electric field through the Helmholtz coil and the parallel plate capacitor, which simulates the working state of the sensor in a high-voltage and strong magnetic composite environment, and provides excitation signals and data acquisition modules for testing through standard sources.

Benefits of technology

The reliability test of the sensor in a composite environment is realized, which improves the comprehensiveness and accuracy of the test results, can detect potential defects and evaluate long-term operation stability, and reduces the testing cost.

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Abstract

The invention provides a device and method for testing the reliability of a power sensor, and the device comprises a magnetic field generation unit which is used for providing an alternating current for a Helmholtz coil through a power frequency current source, and generating a controllable magnetic field; the electric field generating unit is used for providing a high-voltage direct current or power frequency alternating current power supply for the parallel-plate capacitor through a high-voltage generator to generate a uniform electric field; the tested unit is used for providing a standard excitation signal through a standard source matched with the to-be-tested sensor, simulating an input condition of the to-be-tested sensor under an actual working condition and collecting output data of the to-be-tested sensor; and the control unit is used for setting test parameters, generating a control instruction according to the test parameters and generating a test result according to the output data. According to the device and the method, by simulating a strong magnetic field and a strong electric field environment and combining application of various measured parameters and an automatic control system, the reliability evaluation requirement of the sensor under the actual working condition is fully met.
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