Contact Area Measurement System Based on Image Measurement Technology

Abstract

The invention discloses a contact area measurement method based on an image measuring technique. The method comprises the following steps: adjusting a light ray range and scattering light rays after a light source provides the light rays, thereby providing a uniform light field for contact bodies; loading the contact bodies so as to form a contact region; photographing a contact body which is loaded under a uniform light field by a camera, and collecting images of contact parts; and analyzing the images of the contact parts for boundary recognition, determining the contact width, and calculating the contact area among the contact bodies. The invention also discloses a contact area measurement system based on the image measuring technique, and the system is matched with the contact bodies and is used for measuring the contact area among the contact bodies. The system comprises a backlight module, an image collecting module and a contact area recognition module. The method and the system have the advantages of noncontact, high precision, continuity, capability of performing high-temperature environment measurement and the like, and can be used for automatically measuring the contact area under various working conditions.

Description

technical field [0001] This application relates to the fields of engineering structure design and image measurement, in particular, it relates to a contact area measurement system based on image measurement technology. Background technique [0002] Contact is very common in engineering applications, such as the meshing between two gears, the process of rolling a steel plate by the rolls of a rolling mill, the rolling of a wheel on a rail, and the contact of a bridge roller seat, etc. [0003] The contact form of two objects is divided into point contact and line contact. The former is like the contact between a sphere and a plane, and the latter is like the contact between a cylinder and a plane. The two contact models are as follows: figure 1 shown. In order to study the mechanical behavior of contact structures, such as measuring the contact strength of contact bodies, researchers need to measure the contact area between contact bodies. Since the contact area is blocked ...

AI Technical Summary

Problems solved by technology

Aiming at the shortcomings of the existing techniques and methods for measuring the contact area, such as the inability to meet the measurement in high-temperature environments, the inability to observe continuously, the influence of the mechanical properties of the contact body itself, and the low accuracy, the present invention proposes a method that can meet the requirements of different environments. Contact area continuous measurement method, while providing the corresponding measurement system

Images