Magnetic Field Detection With Multi-Plane Distribution Reconstruction
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Solution Overview
Problem
Existing magnetic field detection technologies face challenges in achieving high accuracy, particularly when detecting magnetic fields generated by conductive members in electrical devices, due to limitations in resolving magnetic field distributions at varying distances and noise interference.
Innovation Solution
A magnetic field detection device and method that utilizes an acquisitor to acquire two-dimensional magnetic field data and a processor to derive magnetic field distributions at multiple parallel planes with varying distances, employing high-order approximations and noise suppression techniques to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If magnetic field detection is performed at multiple distances from the detection target, then measurement precision is improved, but device complexity increases due to multiple measurement positions and noise suppression requirements
Solution Approach 1:
The patent transitions from single-plane magnetic field detection to multi-plane three-dimensional detection. By measuring magnetic fields at multiple distances (first plane, second plane, third plane) and reconstructing the distribution in a derived plane, the system achieves higher measurement precision through spatial dimensionality expansion. This allows accurate detection even when the detection target is closer than conventional methods permit.
Solution Approach 2:
The patent introduces a processor as an intermediary that performs magnetic field distribution reconstruction. The processor receives measurement data from multiple planes and calculates the magnetic field distribution in the derived plane using interpolation or other processing methods. This intermediary computation step enables noise suppression and accurate reconstruction without requiring direct physical contact with the detection target.
2Measurement precision
If detection is performed closer to the detection target, then measurement precision improves, but noise interference increases
Solution Approach 1:
The patent employs feedback through multi-plane measurement and reconstruction. By measuring magnetic fields at multiple distances (including planes both closer to and farther from the detection target) and using these measurements to reconstruct the distribution in a derived plane, the system can suppress noise through cross-validation and interpolation. The first, second, and third planes provide redundant information that helps distinguish signal from noise.
Solution Approach 2:
The patent performs preliminary measurements at multiple planes before reconstructing the final magnetic field distribution. By collecting data from the first plane (closer to target), second plane (intermediate distance), and third plane (farther from target), the system prepares sufficient measurement data in advance to enable accurate reconstruction with noise suppression in the derived plane.
3Measurement precision
If magnetic field distribution is derived at a derived distance different from measurement distances, then measurement precision improves through interpolation, but device complexity increases due to additional processing requirements
Solution Approach 1:
The patent creates a copied or reconstructed representation of the magnetic field distribution in a derived plane that is different from the actual measurement planes. By calculating the magnetic field distribution at the first derived plane based on measurements from the first, second, and third planes, the system generates a virtual measurement result that provides higher resolution without requiring additional physical measurement equipment at the derived position.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables highly accurate detection of magnetic fields by deriving magnetic field distributions with high resolution and minimizing noise interference, even at distances closer to the detection target than conventional methods allow.
Implementation Method 1
an acquisitor to acquire data being two-dimensional relating to a magnetic field from a detection target
Data Source
AI summary
According to one embodiment, a magnetic field detection device includes an acquisitor configured to acquire data being two-dimensional relating to a magnetic field from a detection target, and a processor configured to perform a first operation of processing the data acquired by the acquisitor. The data includes a first magnetic field distribution along a first plane, a second magnetic field distribution along a second plane parallel to the first plane, and a third magnetic field distribution along a third plane parallel to the first plane. In the first operation, the processor is configured to derive a first derived magnetic field distribution in a first derived plane parallel to the first plane based on the first magnetic field distribution, the second magnetic field distribution, and the third magnetic field distribution.