Three-dimensional force sensor

A sensor, three-dimensional force technology, applied in instruments, measuring force, measuring fluid pressure, etc., can solve the problem of low measurement accuracy, and achieve the effects of high precision, small inter-dimensional coupling, and low manufacturing technology requirements

Inactive Publication Date: 2012-08-15
HEFEI UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] In order to solve some occasions that do not require high measurement accuracy, such as the measurement of human foot force, the present invention provides a three-dimensional force sensor with simple structure, low cost and easy fabrication.

Method used

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Embodiment

[0017] see figure 1 A three-dimensional force sensor includes a cubic sensor body 1, a square groove 3 is opened in the middle of the top surface of the sensor body 1, and a force measuring platform 2 is arranged in the square groove 3. see figure 2 The bottom of the square groove 3 of the sensor body 1 is evenly provided with four vertical through holes 15 of the same size, the axes of the four vertical through holes 15 are parallel to each other and perpendicular to the square groove 3; the bottom of the vertical through hole 15 is Vertical threaded hole, cooperate with vertical threaded hole to be equipped with vertical adjustment screw 11, be provided with vertical one-dimensional force sensor 12 and vertical steel ball 13 upwards successively in the vertical threaded hole of the top of every vertical adjustment screw 11, with each vertical steel ball The bottom surface of the force measuring platform corresponding to the ball is provided with a bottom positioning blind ...

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Abstract

The invention relates to a three-dimensional force sensor which comprises a sensor body, a groove is arranged in the middle of the top of the sensor body, a force measurement platform is arranged in the groove, four vertical through holes with same dimension are evenly distributed at the bottom of the groove; a vertical adjusting screw is arranged at the lower part of each vertical through hole in a matching manner, a vertical one-dimensional force sensor and a vertical steel ball are further arranged in a vertical thread hole, a bottom surface positioning blind hole is arranged at the bottomsurface of the force measurement platform corresponding to each vertical steel ball, and most part of each vertical steel ball is correspondingly arranged in the bottom surface positioning blind hole; more than four horizontal through holes are evenly distributed on the side wall of the groove; and a horizontal adjusting screw is arranged at the outer end of each horizontal through hole in a matching manner, a horizontal one-dimensional force sensor and a horizontal steel ball are further arranged in the horizontal through hole in sequence, a side positioning blind hole is arranged on the side surface of the force measurement platform corresponding to each horizontal steel ball, and most part of the horizontal steel ball is correspondingly positioned in the side positioning blind hole. The three-dimensional force sensor is combined by 12 common one-dimensional force sensors, so that the structure is simple, and the requirement on the manufacturing technology is low.

Description

technical field [0001] The invention belongs to the technical field of multidimensional force measurement, and in particular relates to a three-dimensional force sensor. Background technique [0002] Inter-dimensional coupling is a common phenomenon when multi-dimensional force sensors measure multi-dimensional forces. Inter-dimensional coupling will reduce measurement accuracy; inter-dimensional coupling means that when multi-dimensional force sensors measure forces in a certain direction, not only There is a signal output, and an undue signal output will also be generated in the direction perpendicular to the force, resulting in measurement error. [0003] At present, the commonly used three-dimensional and multi-dimensional force sensors based on electrical resistance strain gauges need to attach several electrical resistance strain gauges in different orientations (sensitive parts) on the sensor substrate, and measure the deformation of the strain gauges on the sensor s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/14G01L1/16G01L9/00
Inventor 黄斌张文伟吴谦何嘉林王学琪谢国晖
Owner HEFEI UNIV OF TECH
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