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Three-dimensional force sensor

A sensor and three-dimensional force technology, which is applied in the direction of instruments, measuring force, and measuring fluid pressure, etc., can solve the problems of low measurement accuracy and achieve high precision, low manufacturing technology requirements, and simple structure

Inactive Publication Date: 2013-08-07
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • 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 uniformly 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 lower part of the vertical through hole 15 is The vertical threaded hole is matched with the vertical threaded hole to be equipped with a vertical adjustment screw 11, and the vertical one-dimensional force sensor 12 and the vertical steel ball 13 are arranged upwards in the vertical threaded hole on the upper part of each vertical adjustment screw 11. The bottom surface of the force measuring platform corresponding to the ball is provided with a bottom positioning blind hole 14, and...

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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 specifically 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 the measurement accuracy; inter-dimensional coupling means that multi-dimensional force sensors measure the force in a certain direction, not only in the direction of the force. There is a signal output, and an undue signal output will be generated in the direction perpendicular to the force, resulting in measurement errors. [0003] At present, the commonly used three-dimensional force sensor based on resistance strain gauges requires several resistance strain gauges to be attached to different orientations (sensitive parts) on the sensor substrate, and the deformation of the strain gauge on the sensor substrate is measured thr...

Claims

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Application Information

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Patent Type & Authority Patents(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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