Magnetic Elastic Body Force Detection via Flux Variation
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Solution Overview
Problem
Conventional nondestructive tests for detecting the bearing force status of solids, such as ultrasonic and X-ray detections, are limited by their usage environments and lack effectiveness in certain applications.
Innovation Solution
A method involving a magnetic elastic body that changes its magnetic field distribution in response to external forces or internal stress, allowing for the calculation of force bearing values and positions by imposing a steady magnetic flux and comparing magnetic field distributions before and after force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultrasonic or X-ray detections are used for nondestructive testing, then force bearing status can be detected, but usage environment is limited
Solution Approach 1:
The patent replaces conventional ultrasonic or X-ray detection methods with a magnetic field-based detection system. A magnetic elastic body is subjected to a steady magnetic flux, and changes in magnetic field distribution are measured to detect force bearing status. This substitution enables detection in environments where ultrasonic and X-ray methods are limited, as magnetic field detection can operate in diverse conditions including embedded applications within structural bodies or earth layers.
2Adaptability or versatility
If magnetic elastic body is used for detection, then usage environment adaptability is improved, but device complexity increases
Solution Approach 1:
The magnetic elastic body serves dual functions: it acts as both the test object and the detection sensor. When subjected to external force, the magnetic elastic body deforms and this deformation directly modulates the magnetic field distribution. By measuring the magnetic field changes, the system automatically obtains force bearing information without requiring separate sensing mechanisms, thereby reducing overall device complexity despite the improved environmental adaptability.
Solution Approach 2:
The magnetic elastic body can be applied universally across different usage environments and detection scenarios. It can be embedded within structural bodies, placed on surfaces, or positioned in earth layers, making the same detection system adaptable to various applications including structural health monitoring, geotechnical engineering, and material testing without requiring different specialized devices for each environment.
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 nondestructive detection of force bearing values and positions, applicable to various objects and environments, including structural bodies and the earth layer, with methods including scanning measurements and voltage signal generation.
Implementation Method 1
the magnetic elastic body performing magnetic conduction can be stretched or shrunk by changing the passing magnetic fluxes or by the internal stress or external pushing or pulling force, and the peripheral surrounding of the force bearing point generates corresponding variation of magnetic field properties
Data Source
AI summary
In a method for detecting a force bearing value and position of a magnetostrictive body, the magnetostrictive body is stretched or shrunk by changes of passing magnetic fluxes or by the internal stress or external pushing or pulling force, such that the peripheral magnetic field surrounding the force bearing point is varied according to the stretching push or shrinking push, wherein its force bearing value or position is calculated by comparing the magnetic field distribution before and after the force bearing.