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A high-resolution wide-range micro-mechanical potentiometer lead-out structure and method

A high-resolution, lead-out structure technology, applied in the field of potentiometers, can solve problems such as adjustment accuracy depends on adjustment accuracy, difficult to adjust resistance adjustment accuracy with large resistance range and high resistance, achieve high resistance control accuracy, similar volume, and avoid the effect of manipulator adjustment.

Active Publication Date: 2021-12-07
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

This kind of digital potentiometer has the advantages of small size, long working life, and no mechanical wear. However, the digital potentiometer also has disadvantages that cannot be ignored. For example, the adjustment accuracy of the resistance depends on the minimum resistance value on the series resistance network, which is difficult to adjust. The contradiction between large resistance range and high resistance adjustment accuracy, etc.

Method used

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  • A high-resolution wide-range micro-mechanical potentiometer lead-out structure and method
  • A high-resolution wide-range micro-mechanical potentiometer lead-out structure and method
  • A high-resolution wide-range micro-mechanical potentiometer lead-out structure and method

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Embodiment Construction

[0022] The invention is a lead-out structure of a micro-mechanical potentiometer with high resolution and wide range. The structure consists of a strip micro-slide 1; control electrodes 21a, 21b, 22a, 22b...2Na, 2Nb of the electrostatic actuator; spring structure 3; induction electrodes 41, 42, 43...4N of the electrostatic actuator; height control Bump 5; metal strips 61, 62, 63...6N; resistance strips 71, 72, 73...7N; positioning groove 8 for linear actuator; contact contacts 91, 92, 93...9N.

[0023] The middle part on the strip-shaped micro-sliding board (1) is composed of N contact units through the transition of the height control unit and the spring structure (3), which are sequentially connected in series and repeated; Electrodes (4) and contact contacts (9); the height control bumps (5) are evenly distributed on the upper and lower ends of the back of the height control unit, and protrude to a certain height from the back of the elongated micro-slide (1);

[0024] The...

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Abstract

The invention provides a high-resolution and wide-range micro-mechanical potentiometer lead-out structure and a variable resistance output method. A strip-shaped micro-slider with N contact points is used to make the contact points in different positions, and an electrostatic actuator is used to make a short circuit between a certain contact point and the metal strip and the resistance strip. The resistance value between the output terminal of the parallel metal strip and the end point of the series resistance strip will change continuously with the position of the contact point. The lead-out structure of the potentiometer adopts multiple micropotentiometers in series, which not only realizes a wide range, but also ensures a very high resistance control resolution. Adjustment, suitable for all kinds of electronic circuits.

Description

technical field [0001] The invention belongs to the field of potentiometers, in particular to a high-resolution and wide-range micromechanical potentiometer lead-out structure and method. Background technique [0002] The potentiometer is a resistive element with three terminals and the resistance value can be adjusted according to a certain change rule. A potentiometer usually consists of a resistor body and a movable brush. When the brush moves along the resistor body, a resistance value or voltage that has a certain relationship with the displacement is obtained at the output end. Potentiometers play an extremely important role in circuit systems. The traditional potentiometer has a large structure, and requires external force to rotate and adjust the tap to realize the change of resistance. Compared with traditional mechanical resistors, digital potentiometers use electronic switches to switch a tap of multiple series resistors to achieve resistance adjustment. This ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C10/16H01C1/14H01C1/16
CPCH01C1/14H01C1/16H01C10/16
Inventor 秦明何倩
Owner SOUTHEAST UNIV
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