Detachable Magnetic Field Generator for Multi-Axis Sensor Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current testing methods for magnetic sensors lack flexibility and cost-effectiveness, particularly in generating controlled magnetic fields for wafer-level and package-level testing, which limits their ability to assess two-dimensional or three-dimensional sensing performance accurately.
Innovation Solution
A testing assembly comprising a detachable magnetic-field generator and a testing interface with a base plate and multiple testing terminals, where the magnetic-field generator has coil supports and windings that can generate magnetic fields in various orientations, allowing for adjustable magnetic fields to be applied to magnetic sensors, enabling two-dimensional or three-dimensional sensing performance measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed magnetic-field generator is integrated into the testing interface, then the magnetic field generation capability is stable, but the adaptability to different testers and testing configurations is reduced
Solution Approach 1:
The magnetic-field generator is designed as a detachable module that can be separated from the testing interface base plate. This segmentation allows the magnetic-field generator to be removed and adapted to different tester configurations while maintaining stable magnetic field generation when attached to the designated testing interface.
Solution Approach 2:
The testing interface is designed with dynamic adaptability through the detachable magnetic-field generator that can be attached or removed based on testing requirements. This dynamic configuration enables the system to adapt to different testers and testing scenarios while maintaining reliable magnetic field generation during actual testing operations.
2Ease of repair
If the magnetic-field generator is made detachable, then the ease of maintenance and replacement is improved, but the structural complexity of the testing interface increases
Solution Approach 1:
The testing interface is segmented into a base plate and a detachable magnetic-field generator module. This segmentation simplifies maintenance by allowing the magnetic-field generator to be independently removed and replaced without affecting the base plate or other testing components, despite adding a detachment mechanism to the overall structure.
Solution Approach 2:
The magnetic-field generator is extracted as a separate detachable component from the testing interface. This extraction enables easy removal and replacement of the magnetic-field generator for maintenance or upgrades, while the base plate remains as a stable foundation with standardized testing terminals.
3Measurement precision
If multiple coils are added to generate magnetic fields in various orientations, then the measurement precision for multi-dimensional sensing is improved, but the device complexity increases
Solution Approach 1:
Different coils are positioned at specific locations and orientations around the testing area to generate magnetic fields in specific directions (X-axis, Y-axis, Z-axis). Each coil is strategically placed to provide localized magnetic field generation capability for testing sensors in different orientations, enabling comprehensive multi-dimensional sensing performance measurement.
Solution Approach 2:
The system transitions from single-axis magnetic field generation to three-dimensional magnetic field generation by adding coils oriented in different spatial dimensions (X, Y, and Z axes). This dimensional expansion allows the testing interface to measure sensing performance in multiple directions simultaneously, significantly improving measurement precision for 2D and 3D sensors.
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
The solution provides a flexible and cost-effective method for testing magnetic sensors, enabling accurate assessment of their performance across different axes and orientations, compatibility with various testers, and ease of maintenance and replacement of the magnetic-field generator.
Implementation Method 1
imposing a magnetic field to the magnetic sensor by supplying current to the at least one coil
Data Source
AI summary
A testing assembly for testing a magnetic sensor comprises a testing interface and a detachable magnetic-field generator. The testing interface has a base plate and plurality of testing terminals. The base plate has a first side and a second side opposite to the first side. The plurality of testing terminals is arranged on the first side of the base plate. The detachable magnetic-field generator is arranged on the second side of the base plate in a detachable fashion. The detachable magnetic-field generator has a coil support and at least one coil winding around the coil support.