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Integrated five-dimensional force measuring method

A measurement method and five-dimensional force technology, applied in the field of multi-dimensional force measurement, can solve problems such as complex processing technology and large sensor size, and achieve the effect of improving accuracy

Active Publication Date: 2020-07-10
DALIAN UNIV OF TECH
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Problems solved by technology

However, most of the existing piezoelectric force sensors have problems such as complex processing technology and large sensor size, and cannot realize the integrated measurement of multi-dimensional complex loads.

Method used

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  • Integrated five-dimensional force measuring method

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Embodiment Construction

[0037] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0038] Select a cube quartz crystal block 3, the crystal coordinate system x' of the quartz crystal block 3 is placed on the axis, the crystal coordinate system of the quartz crystal block 3 is rotated and changed, and the calculation coordinate system Oxyz is established, and the crystal coordinate system of the quartz crystal block 3 is Ox'y'z', such as figure 1shown. The lower end surface of the quartz crystal block 3 is fixed on the lower end cover 5 and clamped by the upper end cover 2 and the lower end cover 5 with a pre-tightening force. The upper end and the loading block are fixed by pre-tightening bolts and there is a certain gap between the lower end and the shielding ring 4. The multi-dimensional force is loaded on the loading block 1, and the force is transmitted to the upper end surface of th...

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Abstract

The invention belongs to the technical field of multi-dimensional force measurement, and provides an integrated five-dimensional force measuring method. The method is different from a traditional multi-point arranged piezoelectric dynamometer, a cubic quartz crystal block is used as a force sensitive element to manufacture a sensor and can be used for measuring multi-dimensional force in a small space and has important significance in the manufacturing field needing to measure the multi-dimensional force in the small space. According to the method, a method of uniformly distributing eight electrodes to output charges is adopted, the measurement system can control error values generated by external random and accidental interference signals within a certain range, the accuracy of measurement results can be improved and five-dimensional force measurement requirements of general accuracy requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of multi-dimensional force measurement, and relates to an accurate measurement method of five-dimensional force. Different from the traditional multi-point piezoelectric force measuring instrument, this technology uses a square quartz crystal block as a force-sensitive element to make a sensor, which can be used Because of the measurement of multi-dimensional force in a small space, it is of great significance to the manufacturing field that needs to measure multi-dimensional force in a small space. Background technique [0002] Multidimensional force / torque testing technology is widely used in the field of equipment manufacturing. As the most critical sensing link of the measurement and control system, the multidimensional force sensor can provide feedback of up to three force components and three torque components in space. The piezoelectric force sensor with quartz crystal as the force sensitive element h...

Claims

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Application Information

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IPC IPC(8): G01L5/167
CPCG01L5/167
Inventor 任宗金赵凯张军赵毅李洋姜明岩
Owner DALIAN UNIV OF TECH
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