基于双线圈励磁策略的应力磁测方法、系统、设备及介质
By employing a dual-coil excitation strategy and a stress characterization model, the interference problem in stress magnetic measurement of ferromagnetic materials under complex environments was solved, achieving high-sensitivity and high-stability stress detection, simplifying data processing, and improving detection accuracy and robustness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU PEARL RIVER CONSTR DEV CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing stress magnetic measurement technology for ferromagnetic materials is susceptible to interference in complex environments, and its sensitivity and stability are insufficient, making it difficult to achieve efficient and accurate stress detection.
A dual-coil excitation strategy is adopted. By arranging coaxially symmetrical first and second excitation coils at both ends of the calibration sample and combining them with magnetic yoke bridging, a stable magnetization boundary condition is formed. Leakage magnetic field data is collected and a stress characterization model is generated. A nonlinear mapping relationship is constructed using a multivariate regression algorithm to overcome external magnetic field interference and improve detection accuracy.
It effectively resists magnetic field interference from complex external environments, improves the sensitivity of magnetic measurement signals to stress changes, simplifies data processing, and enhances the measurement accuracy and robustness of non-destructive stress testing.
Smart Images
Figure CN122409008A_ABST