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Self-adaptive full-stroke detection electromagnetic induction type potentiometer

A stroke detection and self-adaptive technology, applied in the field of electronics, can solve the problems of short wear life of carbon film, large production error, interference noise, etc., to improve production efficiency and improve user experience.

Active Publication Date: 2021-09-21
SHENZHEN GULI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The contact structure of the traditional potentiometer has the following disadvantages: (1) the carbon film has a short wear life and large production errors; (2) due to the friction of the junction contact, there will be contact interference clutter when the position changes. Speakers, etc. are used to adjust the volume. When adjusting, there will be a buzzing noise.
This method brings a new problem, that is, the output range of the potentiometer can only correspond to a part of the stroke of the potentiometer. When the output of the sensor is not within the detection range, it is difficult to detect the stroke position effectively, and the full stroke detection cannot be realized. Affected the user experience
[0005] Therefore, how to overcome the output range difference caused by the magnetic inconsistency of the permanent magnet in the electromagnetic induction potentiometer and realize the full stroke detection of the electromagnetic induction potentiometer has become a technical problem to be solved urgently

Method used

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  • Self-adaptive full-stroke detection electromagnetic induction type potentiometer
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  • Self-adaptive full-stroke detection electromagnetic induction type potentiometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] See figure 1 , the present invention proposes an adaptive full-stroke detection electromagnetic induction potentiometer 100 , including: a rotating member 101 , a permanent magnet 102 , a magnetic induction sensor 103 and an adaptive full-stroke output adjustment unit 104 . The rotating member 101 rotates around the center when receiving an external force. The rotating member 101 is used to receive external rotation input, and the output of the potentiometer can reflect the input rotation angle position change. The permanent magnet 102 is attached to the rotating member 101 and can rotate with the rotating member 101 . The magnetic induction sensor 103 is used to sense the position of the permanent magnet 102 and generate an initial potential signal. The adaptive full-stroke output adjustment unit 104 is used to collect the initial potential signal, and adaptively adjust the initial potential signal to an actual potential signal corresponding to the complete position c...

Embodiment 2

[0062] see image 3 , Figure 4 , the present invention proposes an adaptive full-stroke detection electromagnetic induction potentiometer 200, including a housing 201, a rotating member 202, a permanent magnet 203, a magnetic induction sensor and an adaptive full-stroke output adjustment unit. The rotating member 202 rotates relative to the housing 201 , the rotating member 202 is fastened to the housing 201 , and the permanent magnet 203 is embedded in the rotating member 202 . The magnetic induction sensor and the self-adaptive full-stroke output adjustment unit can be additionally arranged in an external circuit outside the housing 201, and the self-adaptive full-stroke output adjustment unit can be a single unit, a microprocessor or a DSP. The magnetic induction sensor is used to sense the position of the permanent magnet 203 and generate an initial potential signal. The adaptive full-stroke output adjustment unit is used to collect the initial potential signal, and ada...

Embodiment 3

[0065] see Figure 5 , Image 6 , the present invention proposes an adaptive full-stroke detection electromagnetic induction potentiometer 300 , including a housing 301 , a rotating member 302 , a permanent magnet 303 , a magnetic induction sensor, an adaptive full-stroke output adjustment unit and an output port 304 . The rotating member 302 rotates relative to the housing 301 , the rotating member 302 is fastened to the housing 301 , and the permanent magnet 303 is embedded in the rotating member 302 . Both the magnetic induction sensor and the adaptive full stroke output adjustment unit are embedded in the housing 301 , and the output port 304 is connected to the adaptive full stroke output adjustment unit and embedded in the housing. The magnetic induction sensor is used to sense the position of the permanent magnet 303 and generate an initial potential signal. The adaptive full-stroke output adjustment unit is used to collect the initial potential signal, and adaptively...

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Abstract

The invention provides a self-adaptive full-stroke detection electromagnetic induction type potentiometer, which comprises a movable part used for acquiring position change input; a permanent magnet attached to the movable part; a magnetic induction sensor which is used for sensing the position of the permanent magnet and generating an initial potential signal; and a self-adaptive full-stroke output adjusting unit which is used for collecting the initial potential signal and adaptively adjusting the initial potential signal into an actual potential signal corresponding to the complete position change stroke of the movable part. According to the self-adaptive full-stroke detection electromagnetic induction type potentiometer, the sampling range of the magnetic induction sensor can be dynamically adjusted, and when the sampling value exceeds a preset range value, the preset sampling range can still be adaptively updated in real time, that is, the potentiometer can dynamically and adaptively correct the output characteristic according to the actual use condition, so that the position in the full-scale range can be detected, and the detection accuracy is improved, the use experience of a user is improved, the setting mode does not need to independently calibrate each potentiometer, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an adaptive full-stroke output electromagnetic induction potentiometer. Background technique [0002] The potentiometer is a kind of variable resistor, which is usually composed of a resistor body and a rotating or sliding system, that is, a movable contact moves on the resistor body to obtain a partial voltage output. Most of the traditional potentiometers use carbon film or resistance wire structure, and the contacts need to touch the carbon film for friction to realize the detection of different positions of the potentiometer. The contact structure of the traditional potentiometer has the following disadvantages: (1) The carbon film has a short wear life and large production errors; (2) Due to the friction of the junction contact, there will be contact interference clutter when the position changes. Speakers, etc. are used to adjust the volume. When adjusting, there will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C10/00H01C10/14G01B7/00G01R29/00
CPCH01C10/00H01C10/14G01B7/003G01R29/00G01D5/145G01D5/24476A63F13/24G05G2009/04755G05G2009/04748G05G9/047H01C10/103H01C10/10A63F13/218A63F13/22
Inventor 于红勇
Owner SHENZHEN GULI SCI & TECH CO LTD