Non-contacting method in measuring the tire internal transformation

一种非接触式、测定方法的技术，应用在汽车轮胎测试、电/磁固体变形测量、电/磁轮廓/曲率测量等方向，能够解决价格昂贵、周围环境结果值多、误差等问题

Inactive Publication Date: 2008-05-28
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, such a method has the following problems, that is, the equipment used to measure the deformation of the tire is expensive, or there are many errors in the result value due to the surrounding environment during the measurement.

Method used

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Embodiment Construction

[0009] In order to achieve the above object, the present invention is characterized in that after applying a magnetic field to the steel cord inside the tire belt from the outside so that the current flows through the inside of the steel cord, a magnetic dipole (Magnetic Dipole) is formed at both ends of the belt. Dipole) to form a state where current flows through the inside of the belt layer to form a resonant circuit as a whole, and use the above-mentioned resonant circuit to measure the amount of deformation inside the tire using the usual resonant frequency calculation formula.

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0011] Fig. 1 is a diagram showing a tire belt and a steel cord according to an embodiment of the present invention, and Fig. 2 is a diagram showing an overall resonant circuit constituted by a current flowing inside the steel cord according to an embodiment of the pr...

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Abstract

The invention relates to a non-contact type measuring method of tire deflection. The steel wire cord in the tire belted layer is applied with magnetic field from the outside, ensuring that the two ends of the belted layer form a magnetic dipole after the current passes through the inside of the steel wire cord. The current flows by the inside of the belted layer to form a resonance circuit integrally, through which the deflection in the tire is measured by adopting the normal resonance frequency formula.

Description

technical field [0001] The present invention relates to a method for measuring the amount of deformation of a tire, in particular to a non-contact method for measuring the amount of deformation inside the tire, which is suitable for applying a magnetic field to the steel cord (steel cord) inside the belt layer of the tire so that an electric current flows through the inside of the steel cord , to measure the amount of deformation inside the tire with a non-contact method. Background technique [0002] Conventionally, there are methods of measuring the deformation of the tire corresponding to the actual load using a tire deformation measuring device, or of detecting the deformation state of the tire by using a laser, a sensor, or the like. [0003] However, such a method has problems such as that the equipment for measuring the tire deformation amount is expensive, or that many errors are generated in the result value due to the surrounding environment during the measurement....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16
CPCG01B7/16G01B7/22G01B7/28G01M17/02
Inventor 李元赫
Owner HANKOOK TIRE WORLDWIDE
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