Pressure sensor, electronic skin and touch screen equipment

A pressure sensor and equipment technology, applied in the field of electronic skin, touch screen equipment, security alarm system, and array pressure sensor, can solve the problems of increased system weight, increased burden and cost of the system, and achieve miniaturization and multi-function , cost-saving effect

Active Publication Date: 2013-11-27
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional sensor devices require an external DC power supply (such as a battery) to drive the device, which adds a lot of burden and cost to the entire system, such as the cost of replacing the battery and the increase in the weight of the system by the battery itself

Method used

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  • Pressure sensor, electronic skin and touch screen equipment
  • Pressure sensor, electronic skin and touch screen equipment
  • Pressure sensor, electronic skin and touch screen equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The typical structure of the self-driving pressure sensor provided by the present invention can be found in figure 1 and 2 , figure 1 A schematic diagram of the cross-sectional structure of the pressure sensor, figure 2 It is a schematic top view of a pressure sensor, and the pressure sensor includes: a substrate 401, and M×N sensor units A1, A2, . The array arrangement of columns ( figure 2 only schematically shows an array of 4 rows and 4 columns), wherein each sensing unit includes a first friction layer 101, a first electrode layer 102 arranged in contact with the upper surface of the first friction layer 101, a second friction layer 201 And the second electrode layer 202 (such as figure 1 shown), wherein the second electrode layer 202 and the substrate 401 are fixedly arranged, and the elastic connector 301 is provided in the sensing unit so that the lower surface of the first friction layer 101 and the upper surface of the second friction layer 201 are arran...

Embodiment 2

[0097] The present invention provides an electronic skin device, the electronic skin includes the pressure sensor described in Embodiment 1, wherein, in the pressure sensor, the first friction layer, the second friction layer, and the first electrode layer of each sensing unit Both the second electrode layer and the second electrode layer are made of flexible materials. For example, the active part of the sensing unit consists of polyparadimethylsiloxane (PDMS) film and aluminum foil. Because PDMS is a kind of polymer material with soft texture and good biocompatibility, sensor network devices made of PDMS can be well attached to the surface of muscle tissue of human body or robot, and the electrostatic nano power generation as the sensing unit When the machine is subjected to external force or extrusion, it can generate electrical signal output without additional power supply. Therefore, the electronic skin provided by the present invention is a self-driven artificial electro...

Embodiment 3

[0101] The present invention proposes a touch screen device, including the pressure sensor in Embodiment 1, wherein the first friction layer, the second friction layer, the first electrode layer, and the second electrode layer of each sensing unit in the pressure sensor are all Light-transmitting materials are used. For example, polyethylene terephthalate (PET) film coated with indium tin oxide (ITO) and polyparadimethylsiloxane (PDMS) are used as the effective part of the sensing unit, that is, the first friction layer PET is used, PDMS is used for the second friction layer, and ITO is used for both the first electrode layer and the second electrode layer. Since these materials are all transparent, the touch screen device made of these materials will have good light transmission and will not affect the normal operation of the display below the touch screen.

[0102] The display device provided by the invention can be applied to the displays of electronic computers, mobile ph...

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PUM

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Abstract

The invention provides a pressure sensor, and further provides electronic skin, touch screen equipment and safety alarm equipment correspondingly, wherein the electronic skin, the touch screen equipment and the safety alarm equipment are based on the pressure sensor. The pressure sensor comprises a substrate. The substrate is provided with a plurality of sensing units arranged in an array mode; a static nano generator with two friction layers is adopted in the sensing units, when external force is applied to the sensor, the distance between two friction layers of each sensing unit feeling the external force is changed, and electrical signals output outwards by two corresponding electrode layers are also changed; electrode layers of all sensing units are led out of the sensor through wires, so that functions like pressure (stress) positioning and pressure field mapping can be achieved. The electronic skin, the touch screen equipment and the safety alarm equipment do not need to be powered by power supplies and can conduct pressure induction in a self-driven mode.

Description

technical field [0001] The invention relates to the field of pressure sensors, in particular to an array pressure sensor with an electrostatic nanogenerator as a sensing unit, and an electronic skin, a touch screen device and a safety alarm system using the pressure sensor. Background technique [0002] The proposal and development of the concept of "wireless sensor network" is of great significance to the progress and development of today's society. A variety of different forms of sensors, including biological, chemical, gas, pressure, temperature, etc., can be used as the basic components of sensor networks. However, traditional sensor devices require an external DC power source (such as a battery) to drive the device, which adds a lot of burden and cost to the entire system, such as the cost of battery replacement and the increase in system weight of the battery itself. Contents of the invention [0003] The purpose of the present invention is to provide a self-driven ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/16G06F3/041H02N2/18G08B13/10
Inventor 王中林林龙谢燕楠王思泓范风茹
Owner BEIJING INST OF NANOENERGY & NANOSYST
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