Magnetic Field Source Examination via Coordinate Transformation
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Solution Overview
Problem
Current methods for characterizing magnetic field sources in magnetic systems are inadequate, as they fail to accurately account for manufacturing tolerances and deviations, leading to errors and high rejection rates during system assembly and operation.
Innovation Solution
A method that involves detecting the magnetic vector field and geometrical body of a magnetic field source in separate coordinate systems and transforming them into a mutual coordinate system, allowing for precise positional alignment and characterization of the magnetic vector field relative to the geometrical body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If magnetic inspection systems are used to check whether the magnetic field of a magnetic encoder is within a tolerance range, then measurement precision is improved, but device complexity increases and productivity decreases due to the need for complete system inspections
Solution Approach 1:
The inspection process is segmented into two independent coordinate systems: a first coordinate system for magnetic field measurement and a second coordinate system for geometrical body detection. This segmentation allows parallel processing of magnetic and geometrical data, improving inspection efficiency while maintaining measurement precision through subsequent coordinate transformation and integration.
2Reliability
If complete system inspections are performed to compensate for manufacturing tolerances, then reliability is improved, but loss of time increases due to complex calibration processes
Solution Approach 1:
The patent performs preliminary detection of both the magnetic vector field and the geometrical body in separate coordinate systems before final integration. By detecting geometrical deviations early and transforming coordinates to align the magnetic field data with the actual geometrical body, the system compensates for manufacturing tolerances before final assembly, reducing the need for time-consuming calibration processes later.
3Ease of manufacture
If the magnetic field and geometrical body are detected in separate coordinate systems, then ease of manufacture is improved, but measurement precision decreases due to coordinate system misalignment
Solution Approach 1:
The patent introduces coordinate transformation as an intermediary process that bridges the first coordinate system (magnetic field detection) and the second coordinate system (geometrical body detection). This intermediary transformation aligns the two coordinate systems, enabling precise positional assignment of the magnetic vector field to the geometrical body while maintaining the simplicity of separate detection processes.
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
This approach enables quick and precise measurement and characterization of magnetic field sources, identifying erroneous geometries and magnetizations, reducing errors and costs by allowing for pre-selection of magnetic components and eliminating the need for complex system calibrations.
Implementation Method 1
detecting the magnetic vector field emanating from the magnetic field source in a first coordinate system and generating magnetic field data
Data Source
AI summary
The invention relates to a method for examining a magnetic field source. In this case, the magnetic vector field emanating from the magnetic field source is detected in a first coordinate system and corresponding magnetic field data is generated. Furthermore, the geometrical body of the magnetic field source is geometrically detected in a second coordinate system and corresponding geometrical data is generated. Subsequently, the first and the second coordinate systems are transferred into a mutual coordinate system by means of a coordinate transformation and the magnetic field data and the geometrical data are combined within the mutual coordinate system in order to place the magnetic vector field of the magnetic field source and the geometrical body of the magnetic field source into a mutual positional relationship.