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Press-in Dielectric Elastomer Pressure Sensors

A dielectric elastomer and pressure sensor technology, applied in the field of sensors, can solve the problems of difficult to realize the combination of plane and distributed, and achieve the effect of being conducive to long-term work, low measurement voltage, and easy integration

Active Publication Date: 2017-02-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this design is difficult to achieve the combination of plane distribution, so as to achieve the purpose of measuring the plane distribution pressure

Method used

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  • Press-in Dielectric Elastomer Pressure Sensors
  • Press-in Dielectric Elastomer Pressure Sensors

Examples

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Embodiment Construction

[0032] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0033] like figure 1 As shown, the press-in type dielectric elastomer pressure sensor in this embodiment includes a substrate 3 , a sensing layer 2 and a covering layer 1 sequentially from bottom to top.

[0034] The base 3 is provided with an accommodating hole 4 penetrating through the base 3 ; the side of the covering layer 1 facing the base 3 is provided with a protrusion 5 that cooperates with the accommodating hole 4 to press the sensing layer 2 to deform.

[0035] In this embodiment, the accommodating hole 4 and the protruding post 5 are both circular (ie cylindrical) structures. The diameter (radius) of the accommodating hole 4 is 20 mm, and the height of the boss 5 is equal to the thickness of the base 3 (that is, equal to the depth of the accommodating hole 4 ).

[0036] In this embodiment, the base 3 and the covering layer 1 are made of silica ...

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Abstract

The invention discloses a press-in type dielectric elastomer pressure sensor which comprises a substrate, a sensing layer and a covering layer from bottom to top in sequence. Containing holes are formed in one of the substrate and the covering layer, and bosses matched with the containing holes to extrude the sensing layer to deform are arranged on the other one of the substrate and the covering layer, and dielectric elastomer thin films of flexible electrodes are arranged on the upper surface and the lower surface of the sensing layer. The pressure sensor is of a press-in type, the covering layer and the substrate are arranged on the dielectric elastomer thin films serving as the sensing layer, and the covering layer and the substrate are provided with a plurality of matching mechanisms used for enabling the sensing layer to deform. Large film deformation can be generated with small pressure, and therefore the high sensitivity of the sensor is achieved.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a press-in type dielectric elastomer pressure sensor. Background technique [0002] Sensors are widely used in production and life and occupy an extremely important position. As a sensing element, it is the main medium for people to obtain information. A pressure sensor is a device that senses external pressure information through a sensing element and converts it into an electrical signal. It plays an extremely important role in many engineering fields that need to measure pressure. For example, tactile sensors applied to the limbs of intelligent robots, sensors used to measure the pressure distribution on seats or mattresses, or sensors used to measure the pressure in high-pressure equipment such as boilers, etc. [0003] According to different working principles, pressure sensors are generally divided into three types: piezoelectric, piezoresistive and capacitive. At presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/14G01L9/12
Inventor 曲绍兴刘俊杰毛国勇黄晓强邹咤南
Owner ZHEJIANG UNIV
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