A method for pulsed thermographic quality and principal component of a joint such as a structural bonding in the bodywork region

摘要

A method for pulsed thermographic quality and principal component of a joint such as a structural bonding in the bodywork region, in which a gefügtes component (add sample) without being destroyed pulse thermography is checked for errors, in that the add sample by means of ultrasound is stimulated and the transient heating and / or in the cooling process by means of a add sample within before, during and after the excitation is detected and used by means of a with the connected computer within alternative representations of the thermography film be calculated, and in which, in addition, the following method steps are performed:in a learning phase (calibration) (step 1 to 10. step), after selection of the add sample (1st step), within from the detected in a testing pulsed thermographic thermography movie (2nd step) of the selected add sample (1st step), standardized computer-moderately films on the basis of the time as a standardized film difference film, temporally and locally generated standard film,then, by means of the computer in addition to the images (representations) of said original film, of the difference film and the normalized films of the data of said original film, of the difference film as well as the data of the generated normalized films by means of fft, hka and nmf additional representations of the generated thermography film (3rd step), wherein the number of the additionally produced depends on the representations of the respective procedure,the resulting alternative representations, in a downstream comparator stage the computer is stored in step (3.),as has been tested in a destructive manner is then mechanically a horizontal cut of the same reference add sample is produced, from which the desired error in the add sample optically are to be detected (4th step),thereafter, in the case of duplicate clamping of the positioning of the reproduced within horizontal pulp refiner and in the identical process design by means of the within a thermogram (single thermographic image) of the identical section of the destroyed add sample created at the same spatial resolution (5th step), and the thermography movie this cut-out section in which the recorded within downstream computer, ..