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Calibration and loading method of air-floating multidimensional force transducer

A multi-dimensional force sensor and load cell technology, applied in the direction of force/torque/power measuring instrument calibration/testing, instruments, measuring devices, etc., can solve the problems of complex loading device and complicated adjustment, and achieve simple loading device and easy operation Convenience, high loading accuracy effect

Inactive Publication Date: 2012-07-25
HEFEI UNIV OF TECH
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Problems solved by technology

[0006] The air-floating multi-dimensional force sensor with this structure has high measurement accuracy. If it is calibrated by the traditional weight loading method, not only the loading device is complicated and the adjustment is complicated, but also the friction force in the pulley mechanism and the gravity of the rope cannot be measured. There are factors to avoid, so that the error caused by the loading force exceeds the allowable error requirement of the loading force when the air-floating multi-dimensional force sensor is calibrated

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  • Calibration and loading method of air-floating multidimensional force transducer
  • Calibration and loading method of air-floating multidimensional force transducer
  • Calibration and loading method of air-floating multidimensional force transducer

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Embodiment Construction

[0020] This embodiment is aimed at the air-floating multi-dimensional force sensor disclosed in the invention patent of ZL200810019550.2. The center of gravity of the floating plate 1 in the air-floating multi-dimensional force sensor is set to coincide with its geometric center, and the gravity of the floating plate 1 is mg; Set up two space Cartesian coordinate systems with the center of gravity of the floating plate 1 as the origin, one is a fixed coordinate system x-y-z in which the z-axis direction is parallel to the direction of gravity; the other is a fixed coordinate system in which the z-axis direction is parallel to the thickness direction of the floating plate 1 Floating plate position coordinate system X-Y-Z; at the initial position, the fixed coordinate system x-y-z coincides with the position of the floating plate position coordinate system X-Y-Z. The angles are all 0; when calibrating and loading, the entire air-floating six-dimensional force sensor is tilted at ...

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Abstract

The invention discloses a calibration and loading method of an air-floating multidimensional force transducer. The method is characterized in that: in the spatial rectangular coordinates of the air-floating multidimensional force transducer, the entire air-floating multidimensional force transducer is inclined by any angle through a dividing device, and the gravity of a floating plate with known weight can be decomposed into components parallel to the axial directions of gas nozzles; the components are used as loads added to the axial directions of corresponding gas nozzles; and by changing the inclination angle of the entire air-floating multidimensional force transducer, the required calibration load can be obtained. The method disclosed by the invention can meet the requirement on the loading precision required for calibrating the air-floating multidimensional force transducer, and is used for accurately calibrating the air-floating multidimensional force transducer.

Description

technical field [0001] The invention relates to a calibration loading method for an air-floating multi-dimensional force sensor. Background technique [0002] The calibration of the multi-dimensional force sensor needs to load a series of forces with certain values ​​along the three coordinate axes of the space Cartesian coordinate system. At present, when calibrating a multi-dimensional force sensor, a known force is generally applied to the sensor by means of a pulley mechanism hanging a weight. Due to the existence of inevitable factors such as friction in the pulley mechanism and the gravity of the rope, the loading force has errors. For higher-precision multi-dimensional force sensors, the method of hanging weights by a pulley mechanism cannot meet the loading accuracy requirements during calibration. [0003] The inventor of the present application disclosed a high-precision air-floating multi-dimensional force sensor in the invention patent of ZL200810019550.2 air-f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L25/00
Inventor 黄斌余晓芬黄英张文伟陈照黄开辉王兰兰张红英
Owner HEFEI UNIV OF TECH
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