Piezoelectric type six-dimensional force sensor with adjustable load sharing ratio and test method thereof

A technology of six-dimensional force sensor and test method, which is applied in the direction of measuring fluid pressure, measuring fluid pressure through electromagnetic elements, instruments, etc., can solve the problem that six-dimensional force sensor cannot adapt to variable-range six-dimensional force measurement, and achieves simple structure and lateral interference. Small, easy-to-use effects
CN101793574AActive Publication Date: 2010-08-04DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2010-08-04

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Abstract

The invention discloses a piezoelectric type six-dimensional force sensor with an adjustable load sharing ratio and a test method thereof, which belongs to the field of sensors and measurement and control thereof. The invention particularly relates to the measurement of six-dimensional force on a shaft in different measuring ranges. The six-dimensional force sensor comprises an upper cover, four force sensing elements for sealing and leading out conducting wires, a lower body, load sharing rings, positioning rings and four pre-tightening screws. The adopted test method adjusts the ratio of the summation of stresses on the four force sensing elements to the stress on a tested shaft by adjusting the mounting positions of the four force sensing elements and selecting a series of modularized load sharing rings and positioning rings. The piezoelectric type six-dimensional force sensor adjusts the load sharing ratio to achieve the aim that the same sensor measures the six-dimensional force with different measuring ranges on the shaft in a certain shaft diameter range; and the piezoelectric type six-dimensional force sensor has good rigidity, high sensibility, a low cost and easy commercialization, and the test method is simple to operate, is convenient to use and is safe and reliable.
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Description

technical field

[0001] The invention belongs to the field of sensors and their measurement and control, and in particular relates to the measurement of six-dimensional force on an axis within different measuring ranges. Background technique

[0002] Six-dimensional force measurement is a key technology in the field of sensor measurement and control. In engineering, due to the different ranges of force measurement, the selected six-dimensional force sensors are also different. There are many kinds of traditional six-dimensional force sensors, such as four vertical rib structure six-dimensional force sensors, cross structure six-dimensional force sensors, Stewart structure six-dimensional force sensors, cylindrical six-dimensional force sensors, etc. The six-dimensional force on the surface of the measured object has complex structure, large size, low rigidity, and difficult decoupling. After the design is completed, it can only measure the force within a certain range, and it...

Claims

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