Electrostatic sensor

An electrostatic sensor, electrostatic technology, applied in the direction of instruments, electrical digital data processing, calculation, etc., to achieve the effect of simple method, easy operation, and no calculation required

Active Publication Date: 2016-07-27
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art, there is no electrostatic sensor that realizes non-contact control by static electricity affecting the resistance of the sensing device of the electrostatic sensor.

Method used

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  • Electrostatic sensor
  • Electrostatic sensor
  • Electrostatic sensor

Examples

Experimental program
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Effect test

no. 3 example

[0064] The third electrode 120 and the first electrode 122 at one end of each first sensing element 124 can be electrically connected to the control unit 60 of the electrostatic sensor 300 through a wire, so that the control unit 60 can control the module through its circuit. 62 applies a voltage to each first sensing element 124 respectively, and measures the resistance of each first sensing element 124 through its resistance testing module 64. Similar to the electrostatic sensor 200 of the second embodiment, the electrostatic sensor 300 of the third embodiment can sense the position of an electrostatically charged object above its base 14 in the second direction Y and be used for electronic device control. In the third embodiment, one third electrode 120 replaces the multiple first electrodes 122 in the second embodiment, and realizes the same function as the second embodiment, and simplifies the structure.

[0065] It can be understood that the electrostatic sensor 300 of the ...

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PUM

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Abstract

The invention relates to an electrostatic sensor, which comprises a sensing unit and a control unit, wherein the sensing unit comprises at least one first sensing element and at least two first electrodes; the at least two first electrodes are arranged at the two ends of the at least one first sensing element and are electrically connected with the at least one first sensing element; the at least one first sensing element is of a one-dimensional semiconductor nanostructure with the diameter being smaller than 100 nanometers; when an object with static electricity approaches to the first sensing element, the resistance of the first sensing element changes; the control unit is electrically connected with the at least one first sensing element through a conducting wire; after the voltage is applied to the at least one first sensing element, the resistance of the at least one first sensing element is measured; and a resistance signal is output.

Description

Technical field [0001] The invention relates to an electronic sensor, in particular to an electrostatic sensor. Background technique [0002] In recent years, with the development of high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, electronic devices with a translucent touch screen installed in front of display devices such as liquid crystals have gradually increased. The user of such an electronic device uses a touch screen to visually confirm the display content of the display device located on the back of the touch screen, while pressing the touch screen with a finger or pen to perform operations. Thus, various functions of the electronic device can be operated. [0003] Some touch screens can also recognize hovering actions, that is, the touch screen can sense the position of the hand or stylus on the panel through the hand or stylus close to the touch screen without touching the touch screen panel, so as to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0416G06F3/0443G06F3/0446G06F2203/04101G06F2203/04108G06F2203/04103
Inventor 王新河李东琦王江涛武文赟何宇俊柳鹏赵清宇姜开利范守善
Owner TSINGHUA UNIV
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