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Tire-pavement three-dimensional force measuring device and measuring method thereof

A measuring device and three-way force technology, applied in the field of sensor measurement, can solve the problems that electromagnetic sensors are susceptible to electromagnetic interference, affect the accuracy of measurement, and have limited measurement data points, so as to achieve easy network array measurement, improve sensitivity and The effect of high precision and good anti-electromagnetic interference performance

Active Publication Date: 2017-11-24
WUHAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The existing tire-road surface three-dimensional force measurement device measures by means of single-point arrangement or array arrangement of three-dimensional force sensors. The array arrangement has higher precision, and the sensors used are mainly electromagnetic sensors, but the electromagnetic sensors Disadvantages such as susceptibility to electromagnetic interference and poor corrosion resistance affect the accuracy of measurement to a certain extent. In particular, electromagnetic sensors are affected by their volume, and the number of arrangements per unit area is limited, and the corresponding measurement data points are also limited. Therefore, The accuracy of its measurement results is difficult to improve

Method used

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  • Tire-pavement three-dimensional force measuring device and measuring method thereof

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as image 3 As shown, the fiber grating sensor 17 in this embodiment includes a base 1, an inner rod 2 mounted on the base 1 through a threaded connection, and a straight rod 3 mounted on the inner rod 2 through a threaded connection, and the inner rod 2 is a hollow structure. The rod 2 and the straight rod 3 are elastic bodies with a cylindrical cantilever beam structure, and the rigidity of the hollow structure is much smaller than that of the cantilever beam structure, which reduces the mutual influence between the horizontal and vertical structures during measurement. In this embodiment, the straight rod 3 The length is 66mm and the diameter is 5mm. The hollow structure of the inner rod 2 is a three-section type with a total length of 12mm and 10mm at both ends. The material is 316L steel. The outer surface of the stra...

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Abstract

The invention relates to the sensor measuring field, and discloses a tire-pavement three-dimensional force measuring device comprising a base plate, a contact plate arranged on the base plate, and a sensor array arranged on the base plate; the sensor array comprises an array support having a plurality of fiber grating sensor groups; each fiber grating sensor group comprises n fiber grating sensors vertically arranged in parallel; the sensor array also comprises a fiber grating demodulator; the fiber grating sensors are respectively connected with the fiber grating demodulator; the fiber grating sensors respectively penetrate through holes arranged on the contact plate and extend outside the top surface of the contact plate. The invention also discloses a tire-pavement three-dimensional force measuring method. More sensors are arranged on per unit area, thus improving the measuring precision, improving the anti-electromagnetic interference performance, and greatly reducing the channel number; the measuring device is simpler in structure, thus saving cost.

Description

technical field [0001] The invention relates to the field of sensor measurement, in particular to a tire-road three-way force measurement device and a measurement method thereof. Background technique [0002] The measurement of the tire-road three-way force is of great significance to the study of the performance of the tire, the impact of the tire on the handling stability of the vehicle, driving safety, and the service life of the whole and parts. , surface polishing, etc., so it is very necessary to measure it. [0003] The existing tire-road surface three-dimensional force measurement device measures by means of single-point arrangement or array arrangement of three-dimensional force sensors. The array arrangement has higher precision, and the sensors used are mainly electromagnetic sensors, but the electromagnetic sensors Disadvantages such as susceptibility to electromagnetic interference and poor corrosion resistance affect the accuracy of measurement to a certain ex...

Claims

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Application Information

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IPC IPC(8): G01L5/16
CPCG01L5/166
Inventor 李俊周兴林刘万康郭永兴肖神清
Owner WUHAN UNIV OF SCI & TECH
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