Micro air bag-type flexible three-dimensional force sensor
A micro-airbag-type, three-dimensional force technology, applied in the direction of fluid pressure measurement using piezoelectric devices, can solve the problems of unfavorable arrayed sensor manufacturing, less flexible structure design, etc., to improve ease of use and reduce processing difficulty. Effect
Active Publication Date: 2018-05-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
[0003] Most of the force sensors currently used are all-solid or semi-solid structures, and there are few designs based on flexible structures.
Moreover, most force sensors directly convert mechanical information into electrical signals based on the principle of capacitance or piezoresistivity, which requires the integration of complex signal processing circuits inside the flexible structure, which is not conducive to the manufacture of arrayed sensors.
Method used
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[0019] The present invention will be further described below in conjunction with accompanying drawing:
[0020] Such as Figure 1-Figure 2 A micro-airbag type flexible three-dimensional force sensor shown includes a flexible force transmission column 1 and a flexible base 3 arranged under the flexible force transmission column 1 . The bottom of the flexible force transmission column 1 is provided with four evenly distributed upper micro-airbags 21-24. Taking the central axis of the flexible elastic column as the central line, the four upper micro-airbags are evenly and symmetrically distributed along the outer circumference of the bottom of the flexible force transmission column. A lower micro-airbag 4 is opened on the flexible base 3 . The upper micro-airbags 21-24 and the lower micro-airbags 4 are equipped with micro-pressure sensors; the micro-pressure sensors are used to detect changes in air pressure in the upper micro-airbags or the lower micro-airbags. The lower surf...
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The invention relates to a micro air bag-type flexible three-dimensional force sensor, which comprises a flexible force transmission column and a flexible base arranged below the flexible force transmission column, wherein the bottom part of the flexible force transmission column is provided with a plurality of uniformly-distributed upper micro air bags; the flexible base is provided with a lowermicro air bag; and the upper micro air bags and the lower micro air bag are provided with micro pressure sensors. Thus, through embedding the upper micro air bags and the lower micro air bag in the flexible force transmission column and the flexible base in a certain arrangement mode and through arranging the micro pressure sensor in each micro air bag to measure air pressure changes in each microair bag, the suffered loading force is thus calculated, and three-dimensional force measurement is realized. The flexible three-dimensional force sensor processing difficulty is reduced, and the usability is improved.
Description
technical field [0001] The invention relates to the technical field of physical measuring instruments, in particular to a micro-airbag type flexible three-dimensional force sensor. Background technique [0002] The mechanical sensor is a sensor device that converts various mechanical measurements into electrical signals, and is widely used in various aspects of production and life. Moreover, with the rapid development of electromechanical devices such as portable electronic devices, wearable devices, and intelligent robots, micro sensors with the advantages of small size, light weight, low power consumption, and high reliability have begun to be widely used. According to the nature of the material, mechanical sensors can be divided into all-solid, semi-solid and flexible structures. Among them, flexible structures can be applied to tactile sensors, robot skins and other environments that require proper elasticity or match complex shapes, so they have wider applicability. ...
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IPC IPC(8): G01L9/08
CPCG01L9/08
Inventor 潘宏青何飞赵星双丰胡广宇许玉云孙玉香曹会彬王耀雄高放
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI