An anti-interference pulsed inductance intensity measuring device and measuring method

By employing an internal and external anti-interference architecture and a three-level spatial partitioning design in the pulse inductance measurement device, the problem of the pulse inductance measurement device being susceptible to interference is solved, achieving high-precision and high-repeatability inductance measurement, which is suitable for power electronics and new energy fields.

CN122043077BActive Publication Date: 2026-07-24CHANGZHOU YOUCE ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202610493104.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-15
Publication Date
2026-07-24
Estimated Expiration
2046-04-15

AI Technical Summary

Technical Problem

Existing pulse inductance measurement devices are susceptible to electromagnetic radiation, contact resistance fluctuations, lead wire inductive coupling, environmental vibration, and temperature drift during measurement, resulting in decreased measurement accuracy and poor repeatability. Furthermore, traditional anti-interference designs cannot fundamentally solve these problems, leading to devices that are bulky, heavy, and inconvenient to carry.

Method used

An anti-interference architecture with separate internal and external placement is adopted, physically isolating the high-precision current sensor and the high-precision voltage sensor in an independent measurement isolation chamber, while strong interference sources and signal processing modules are placed in the external chassis space. Combined with a three-layer composite shielding structure, thermal fin array, shock absorption components and dedicated shielded lead structure, a three-level spatial partition is formed to isolate and suppress interference.

Benefits of technology

This device enables high-precision, highly repeatable pulse inductance measurements without the need for an external anechoic chamber or harsh laboratory conditions. It features a simple structure, controllable cost, and strong environmental adaptability, ensuring the stability and reliability of measurements.

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Abstract

The application relates to the technical field of electric induction measuring devices, in particular to an anti-interference pulse inductance intensity measuring device and a measuring method, which comprises a machine case, a measuring isolation cabin, a control and measuring circuit unit and a test interface; the measuring isolation cabin is installed in the machine case through a damping assembly, high-precision current sensors and high-precision voltage sensors are arranged in the measuring isolation cabin; the test interface is installed on the side wall of the measuring isolation cabin, the inner side of the test interface is connected with the sensors, and the outer side of the test interface is connected with a to-be-measured inductance located outside the measuring isolation cabin through a test cable; the signal output end of the sensor is connected with a signal processing module through a special shielding lead structure penetrating the wall surface of the measuring isolation cabin; through the cooperative design of the cabin structure, a composite shielding layer, a directional heat conduction structure, air-suspended vibration isolation and a wall-penetrating filter structure, electromagnetic, heat and vibration interference are isolated, and high-precision and high-repetitive pulse inductance measurement is realized.
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