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High-precision dynamic six-direction force sensor

A force sensor, high-precision technology, applied in the field of high-precision dynamic six-way force sensor, can solve the problem that axial force, shear force, bending moment and torque cannot be accurately measured at the same time, force sensor calibration result and measurement result error, measurement performance and measurement function defects, to achieve ideal calibration results, weaken structural coupling, and increase installation difficulty.

Inactive Publication Date: 2018-12-14
TONGJI UNIV
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Problems solved by technology

Among the currently used force measurement methods, the strain gauge method is limited by its measurement principle, and it is impossible to accurately measure the internal force of the structure after the structure enters plasticity; and the force sensor method is prone to occur during the test process due to the design defect of the force sensor device. Brittle failure; at the same time, limited by the inherent error coupling and structural coupling effects, there are large errors in the calibration results and measurement results of the force sensor, and the axial force, shear force, bending moment and torque cannot be accurately measured at the same time. and measurement functions are flawed

Method used

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  • High-precision dynamic six-direction force sensor

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Embodiment

[0027] High-precision dynamic six-direction force sensor device, its structure is as follows figure 1 , figure 2 As shown, it includes a connecting plate 1 , an anchoring hole 2 , a groove 3 , an elastic body 4 and a sensitive element 5 . The connecting plate 1 and the elastic body 4 are integral prefabricated parts with great rigidity, which are made of high-strength homogeneous metal materials, and the transition between them is smooth. The size of the connecting plate 1, the anchor hole 2 on it is used to realize the connection of the force sensor and other structural components, the number of holes, the diameter and the position of the holes can be selected according to the specific connection situation and then processed; the groove 3 is used to lead out the sensitive components 5. The position and size of the connection line with the external data acquisition system can also be reasonably designed and adjusted according to the actual situation. Elastomer 4 is the key ...

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Abstract

The invention relates to a high-precision dynamic six-direction force sensor, comprising an elastic body and a connecting plate connected to upper and lower surfaces of the elastic body, wherein the connecting plate is provided with a groove, the inner surface of the elastic body is pasted with a sensitive component, and the connecting line of the sensitive component is induced through the groove.Compared with the prior art, the high-precision dynamic six-direction force sensor is applicable to various engineering structure tests, can accurately measure the axial force, shear force, bending moment and torque in the test model at the same time, and has powerful functions, stable performance, high and strong durability, and the measurement result, especially the dynamic measurement result is accurate and reliable.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and engineering structure test and measurement, in particular to a high-precision dynamic six-direction force sensor. Background technique [0002] At present, there are strain gauge method and force sensor method to measure the internal force of structure in engineering structure test. [0003] The strain gauge method is to paste the strain gauge on the part of the structure where the force needs to be measured, connect the strain gauge to the data acquisition system, output the strain data at the patch, and calculate the internal force of the structure according to the material mechanics method. [0004] The force sensor method is to place a homogeneous object with great strength and rigidity at the force measuring part, which is generally composed of a connecting plate, an elastic body and a sensitive element. The connection board is used to realize the connection between the force s...

Claims

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Application Information

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IPC IPC(8): G01L1/22
CPCG01L1/22G01L1/2218G01L1/2287
Inventor 徐艳王臻童川崔存玉曹孙林童自亮曾增
Owner TONGJI UNIV
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