Adaptive Inductive Potentiometer for Full-Stroke Position Detection
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Solution Overview
Problem
Electromagnetic induction potentiometers face inconsistencies in output ranges due to magnetic inconsistencies of permanent magnets, leading to incomplete full-stroke detection and increased production costs from individual calibration.
Innovation Solution
An electromagnetic induction potentiometer with a full-stroke adaptive output adjusting unit that dynamically adjusts the sampling range based on initial potential sampling values, ensuring all positions within the full stroke can be detected by comparing and adapting the initial potential signal to an actual potential signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed narrow detection range is applied to ensure safe operation, then reliability is improved, but full-stroke detection capability deteriorates
Solution Approach 1:
The patent applies dynamics by making the detection range adjustable rather than fixed. The control unit dynamically adapts the detection range based on the actual output characteristics of the hall sensor. This allows the system to expand the detection range when the sensor output varies within a wider range, thereby achieving full-stroke detection while maintaining reliability through adaptive adjustment.
Solution Approach 2:
The patent changes the detection range parameter adaptively based on the hall sensor's output characteristics. By monitoring the output voltage range of the hall sensor and adjusting the detection range accordingly, the system can accommodate different magnetic consistencies of permanent magnets while ensuring full-stroke detection coverage.
2Manufacturing precision
If individual calibration is performed for each electromagnetic induction potentiometer, then manufacturing precision is improved, but productivity deteriorates
Solution Approach 1:
The patent implements self-service through automatic calibration performed by the control unit. The control unit automatically detects the output characteristics of the hall sensor and adjusts the detection range without requiring manual intervention for each potentiometer. This self-calibration process maintains manufacturing precision while significantly improving productivity during mass production.
Solution Approach 2:
The patent replaces manual calibration procedures with an automated electronic calibration system. The control unit uses electronic detection and adjustment mechanisms to calibrate each potentiometer automatically, substituting the mechanical/manual calibration process with an automated electronic system that improves both precision and efficiency.
3Adaptability or versatility
If the detection range is expanded to cover full stroke, then adaptability is improved, but measurement precision deteriorates due to magnetic inconsistencies
Solution Approach 1:
The patent adjusts the detection range parameter based on the actual output characteristics of the hall sensor. By dynamically changing the detection range to match the sensor's output voltage range, the system achieves full-stroke detection coverage while maintaining measurement precision through adaptive parameter adjustment rather than using a fixed expanded range.
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
Ensures full-stroke detection without the need for individual calibration, improving user experience and production efficiency by adaptively correcting output characteristics in real time.
Implementation Method 1
electromagnetic induction potentiometer
Implementation Method 2
magnetic induction sensor configured to sense positions of the permanent magnet
Data Source
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AI summary
The present invention provides an electromagnetic induction type potentiometer for self-adaptive full stroke detection, comprising: a movable portion, configured to obtain a position change input; a permanent magnet, attached to the movable portion; a magnetic induction sensor, configured to sense the position of the permanent magnet and generate an initial potential signal; and a self-adaptive full stroke output adjustment unit, configured to collect the initial potential signal and adaptively adjust the initial potential signal into an actual potential signal corresponding to a complete position change stroke of the movable portion. The present invention can implement the dynamic adjustment for a sampling range of the magnetic induction sensor, and still can adaptively update a preset sampling range in real time when a sampling value exceeds a preset range value. That is, the potentiometer can dynamically and adaptively correct an output characteristic according to an actual use condition, thereby ensuring detection on the positions within a full-scale range, and the user experience is improved. According to the setting mode, there is no need to perform separate calibration on each potentiometer, such that the production efficiency is improved.