Non-destructive testing method and device for implementing the method
A non-destructive testing and testing technology, which is applied in the direction of measuring devices, instruments, nuclear engineering, etc., can solve the problems of little effect, not enough to eliminate the filtering device, unsatisfactory, etc., and achieve the effect of the best detection sensitivity
Active Publication Date: 2015-09-30
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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Problems solved by technology
[0007] However, since the first solution is not only insufficient to eliminate the filtering means of radiation scattered by the internal structure of the part, it also eliminates a part of the incident radiation, which leads to a decrease in contrast and detection sensitivity, while in the second solution, The mask has little effect on the radiation scattered by the internal structure of the part, neither solution is satisfactory
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[0037] Initial reference figure 1 , figure 1 A device 10 for detecting a mechanical part 12 by emitting electromagnetic radiation 14 through the mechanical part 12 is shown. The device 10 has a high-energy electromagnetic radiation source 16, that is, the radiation can penetrate the mechanical part 12. The mechanical part 12 is placed facing the high-energy electromagnetic radiation source 16 and is located on the electromagnetic beam emitted by the radiation source 16. The detector 18 is aligned with the radiation source 16 and the mechanical part 12 and is arranged on the other side of the mechanical part 12 away from the radiation source 16 in order to receive the radiation transmitted through the mechanical part 12. Thereby, a grayscale image representing the attenuation of the radiation when passing through the mechanical part 12 is obtained. Using this image, in principle, it is possible to detect the presence or absence of defects of the mechanical part 12 relative to t...
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Abstract
A method of non-destructively inspecting a mechanical part includes directing high energy electromagnetic radiation emitted by a source onto the part for inspection and picking up the radiation that has passed through the part. A mask that absorbs the radiation is interposed between the source and the mechanical part and includes at least one opening in alignment with the source and a given zone for inspection of the part, a shape and dimensions of the opening being determined so that only the given zone for inspection of the part is exposed to the electromagnetic radiation.
Description
Technical field [0001] The present invention relates to a method for non-destructive testing of mechanical components such as turbine blades, which transmits high-energy electromagnetic radiation through the mechanical components to be tested. The present invention also relates to a device for implementing the method. Background technique [0002] In various known non-destructive testing technologies, high-energy electromagnetic radiation such as X-rays is directed to the component to be tested, and the high-energy electromagnetic radiation escaping from the component to be tested is recovered by the detector to form a representative high-energy electromagnetic An image of the interaction between the radiation and the internal structure of the component to be inspected, which can show the presence or absence of defects in the component. [0003] However, in this technology, the radiation emitted by the radiation source acts on the whole of the component to be detected, and is scatt...
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IPC IPC(8): G01N23/04G01N23/18G21K1/10
CPCG01N23/04G01N23/18G01N23/083
Inventor 伊夫斯·雅各宾
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A