Electronic Seal Label Verification Using the Wiegand Effect
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Solution Overview
Problem
Existing sealing label devices lack an automatic detection function, leading to high error rates and low efficiency in identifying dismantled instrument apparatus, which can result in performance degradation or damage, and there is a need for improved solutions to ensure matching between encoders and electric machines.
Innovation Solution
An electronic sealing label device utilizing a magnet and a sensing element that exploits the Wiegand effect to generate a signal upon relative movement, integrated with a signal recording module and control device to automatically detect disassembly/assembly states and control component operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual visual inspection is used to identify dismantled instrument apparatus, then the system structure remains simple, but the error rate is high and efficiency is low
Solution Approach 1:
The patent replaces manual visual inspection with an automatic sensing system that uses a magnet and sensing element to detect relative movement between components. The sensing element generates signals when the magnet moves relative to it, providing automated detection that eliminates human error and increases efficiency without requiring complex mechanical structures.
2Productivity
If an automatic detection function is added to the sealing label device, then detection accuracy and efficiency improve, but the device complexity increases
Solution Approach 1:
The patent extracts the detection function from the main sealing label device structure by using a separate sensing element that independently detects magnet movement. This modular approach enables automatic detection functionality while keeping the overall device structure relatively simple, as the sensing element operates autonomously to generate detection signals without requiring complex integration into the main device architecture.
3Loss of time
If the encoder is replaced without verification, then the replacement process is quick and simple, but the compensation data may be mismatched with the original electric machine
Solution Approach 1:
The patent implements preliminary detection by placing the sensing element and magnet arrangement on the encoder and electric machine housing respectively, before the encoder replacement occurs. When the encoder is removed or replaced, the magnet and sensing element experience relative movement that generates detection signals, alerting the system to the replacement event. This allows verification of encoder replacement and ensures compensation data matching is checked before the encoder is put into service, preventing performance degradation while maintaining a relatively quick replacement process.
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 automatic detection and immediate shutdown of components upon disassembly, enhancing system security and preventing performance degradation, while requiring minimal structural changes and being cost-effective.
Implementation Method 1
a sensing element, the sensing element being arranged on the second component and fixed in a position opposite the magnet, wherein the sensing element exploits the Wiegand effect to generate a signal when relative movement occurs between the first component and second component
Data Source
AI summary
Provided are an electronic seal label apparatus, an electric motor assembly with the electronic seal label apparatus, and an electronic seal label verification method. The electronic seal label apparatus includes: a magnet configured on a first component; and a sensing element configured on a second component and fixed opposite the magnet. When relative motion takes place between the first component and the second component, the sensing element generates a first signal according to the Wiegand effect, so that a disassembly or assembly state between the first component and the second component, which can be removed from each other, can be detected automatically.