Infrared Images Measuring Metal Fatigue Limit And Transmission Module Of Research

This issue by the State "863" Project Fund support, the project aims to quickly and effectively to metal fatigue limit of detection. The method is through infrared thermal imaging technology to quickly determine the metal fatigue limit. This paper by the research component of the projectThis paper first analysis of the previous limit of metal fatigue detection methods, and previous research, the results were summarized and selective absorption. However, the fatigue limit of traditional assessment methods need a long time, the high cost. Therefore, a new test method has been raised. New method is based on thermal imaging technology lock dissipation can be measured through the D-MODE and E-MODE law, step-by-sample stress the value of the limited circle of dissipated energy, corresponding to the stress imposed on the sample inflection point on the curve Revealed fatigue limit mechanism.The method is in the infrared detection technology to achieve rapid development in the, as the dissipation of metal can be very small, in the infrared technology before there can not be measured, so that people can easily be overlooked. With the rapid development of infrared technology, we can make through the infrared camera accurately measured specimens of precision temperature, thus we will be able to calculate the specimen to the dissipation, and then estimate the metal fatigue limit.This article detailed the use of infrared image processing of metal fatigue limit detection of theoretical basis. Fatigue test specimen, through an infrared camera to capture infrared images of the specimen signal in the data transfer module for preliminary treatment. Adding an important test of the load signal, then signal contains a load of data transfer to your computer for further processing, and stress can be reached between the dissipation of the curve. Drawing energy consumption curve, by the least squares regression, to identify mutations energy consumption point of stress, then projected to sample the fatigue limit.In this paper, the transmission modules have been studied, each chip on the choice of a detailed analysis of the note, and the function of a more detailed explanation, the last of its functions and timing of the simulation.