Capacitive touch sensor

A tactile sensor, capacitive technology, applied in the sensor field, can solve the problems of low sensitivity of tangential force measurement and complex measurement circuit, and achieve the effect of reducing the number of capacitors, simplifying the measurement circuit, and reducing the number of plates

Active Publication Date: 2020-10-13
BEIHANG UNIV +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the single sensing unit of the existing capacitive tactile sensor often contains multiple electrode plates a

Method used

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[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] The purpose of the present invention is to provide a capacitive tactile sensor, which reduces the number of plates and the number of capacitances on the basis of the existing capacitive tactile sensor, so as to realize accurate measurement and decoupling of three-dimensional forces.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present ...

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Abstract

The invention provides a capacitive touch sensor. A single sensing unit structure of the capacitive touch sensor is triangular, and is composed of an upper polar plate, a lower polar plate and a dielectric layer. The upper polar plate and the lower polar plate are correspondingly arranged; the upper polar plate comprises three first polar plates, the lower polar plate comprises three second polarplates, the first polar plates and the second polar plates are isosceles triangles with vertex angles of 120 degrees, the vertex angles of the three first polar plates are oppositely arranged, top ends of the three second polar plates are connected with one another, and the three first polar plates and the three second polar plates jointly form three independent capacitors; and through a structural arrangement, the number of polar plates and the number of capacitors are reduced, and a measurement circuit is greatly simplified so that accurate measurement and decoupling of a three-dimensional force are realized.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a capacitive touch sensor. Background technique [0002] With the development and integration of various disciplines, the field of robotics integrating multiple technologies is also booming. In order to realize the intelligence of robots, robots need to have the ability to interact with the outside world. Starting from imitating the perception function of human beings, the current robot already has a variety of sensors to ensure that the robot can receive a variety of information from the outside world. For example, cameras and image processing technology that imitate human vision; vibration sensors and voice recognition technology that imitate human hearing; infrared thermometers that imitate human touch. Among them, the tactile sensor is the only sensor that is in direct contact with the outside world among many sensors, and can obtain rich information about the external environment, su...

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Application Information

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IPC IPC(8): G01L5/165
CPCG01L1/14
Inventor 张超王少萍铁健
Owner BEIHANG UNIV
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