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Air-floating type multidimensional force sensor and multidimensional force measuring method

A multi-dimensional force sensor and air-floating technology, applied in the measurement of hydraulic/pneumatic force, simultaneous measurement of multiple hydraulic valves, measurement devices, etc., can solve problems such as inability to achieve decoupling and complex decoupling

Inactive Publication Date: 2008-07-16
HEFEI UNIV OF TECH
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Problems solved by technology

Coupling is related to many factors such as sensor structure design, processing accuracy, assembly accuracy, strain gauge bonding process, and calibration method. Not only is decoupling complicated, but so far it has not been possible to achieve complete decoupling. Reduce the effect of coupling on
The error caused by the coupling phenomenon is the main obstacle to the further improvement of the accuracy of the existing multi-dimensional force sensor. There is no relevant report on the multi-dimensional force sensor without coupling at all.

Method used

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  • Air-floating type multidimensional force sensor and multidimensional force measuring method

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Embodiment Construction

[0017] Labels in the figure: 1 floating plate, 1a floating plate top surface, 1b floating plate bottom surface, 1c floating plate left side, 1d floating plate right side, 1e floating plate front side, 1f floating plate rear side, 2a top surface nozzle, 2b bottom surface nozzle, 2c Left nozzle, 2d right nozzle, 2e front nozzle, 2f rear nozzle, 3 working table, 4 nozzle bracket, 5 air inlet, 6 pressure chamber, 7 pressure measuring port.

[0018] Referring to Fig. 1, in order to realize the measurement of the six-dimensional force, a rectangular hexahedron floating plate 1 is set in this embodiment, corresponding to each surface of the floating plate 1, nozzles are respectively provided, and the nozzle baffle is formed by the surface corresponding to each nozzle and the floating plate A plate-type pressure sensor, and the floating plate 1 as a baffle is completely suspended under the action of the air pressure of each nozzle, and the air cavity pressure signal of each nozzle is u...

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Abstract

An air float multi-dimension force sensor and a multi-dimension force measuring method are characterized in that the invention is provided with a rectangle hexahedron floating plate; each surface corresponding to the floating plate is respectively provided with a nozzle; each nozzle and the surface corresponding to the floating plate form a nozzle baffle type pressure sensor; the rectangle hexahedron floating plate is led to be fully suspended and floated by the pressure air sprayed out from each nozzle; a pressure signal of a bearing cavity of each nozzle is a detecting output signal. The method for measuring multi-dimension force has no coupling among dimensions, needs no complex decoupling procedure and can effectively improve measuring precision.

Description

technical field [0001] The invention relates to a multi-dimensional force measuring device and a measuring method. Background technique [0002] Most of the direct measurement of force above two dimensions requires the use of multi-dimensional force sensors, such as three-dimensional force sensors and six-dimensional force sensors. Existing sensors for measuring multi-dimensional force or torque can be divided into different types according to different force detection methods: strain gauge type for measuring strain or stress; piezoelectric element type using piezoelectric effect; Transformer type; capacitance displacement type, etc. However, multidimensional force sensors based on the above principles inevitably have problems such as inter-dimensional coupling due to structural design and other reasons, that is, the measured force not only makes the sensor output in the direction of the force, but also causes the sensor There is also output in the direction of . In order...

Claims

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Application Information

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IPC IPC(8): G01L1/02G01L15/00G01L3/00
Inventor 黄斌黄英王会生
Owner HEFEI UNIV OF TECH
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