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CN-121994832-A - Detection device and detection method

CN121994832ACN 121994832 ACN121994832 ACN 121994832ACN-121994832-A

Abstract

The application discloses a detection device, and relates to the technical field of ray detection. The detection device comprises a ray device, a base, an imaging piece and an adjusting mechanism, wherein the ray device is used for generating a ray bundle, the base comprises a bearing table which is used for bearing the detection piece, the imaging piece is arranged on one side, far away from the ray device, of the detection piece, an optical signal generated by the ray bundle irradiating the detection piece can form an image on the imaging piece, the adjusting mechanism is arranged on the base, the bearing table is connected with the adjusting mechanism, and the adjusting mechanism can drive the bearing table to adjust in at least three degrees of freedom of movement relative to the ray device so as to adjust the position of the detection piece relative to the ray bundle. By applying the detection device disclosed by the application, the labor and time cost can be saved, and the adjustment precision can be improved.

Inventors

  • HAO RUI
  • YU GUOLONG
  • ZHANG LIFENG

Assignees

  • 中国原子能科学研究院

Dates

Publication Date
20260508
Application Date
20260104

Claims (10)

  1. 1. A detection apparatus, characterized by comprising: A radiation device for generating a radiation beam; the base comprises a bearing table, wherein the bearing table is used for bearing the detection piece; The imaging piece is arranged on one side of the detection piece far away from the ray device, and an optical signal generated by the irradiation of the ray beam on the detection piece can form an image on the imaging piece; The adjusting mechanism is arranged on the base, the bearing table is connected with the adjusting mechanism, and the adjusting mechanism can drive the bearing table to adjust in at least three degrees of freedom of movement relative to the ray device so as to adjust the position of the detection piece relative to the ray bundle.
  2. 2. The apparatus according to claim 1, wherein the adjustment mechanism includes a rotation assembly provided to the base and rotatably connecting the stage with the base such that the stage is rotatable relative to the base about a first axis parallel to a height direction of the base.
  3. 3. The inspection device of claim 2, wherein the adjustment mechanism further comprises a flip assembly rotatably coupled to the first side of the carrier and to the base, the flip assembly coupled to the second side of the carrier, the flip assembly capable of driving the second side to rotate about an axis of the first side, the direction of the axis of rotation of the first side being different from the direction of the first axis.
  4. 4. A detection device according to any one of claims 1 to 3, wherein the adjustment mechanism further comprises a lifting assembly provided to the base and connected to the carrying table, the lifting assembly being adapted to drive the carrying table relative to the base in a height direction of the base.
  5. 5. A detection device according to any one of claims 1 to 3, wherein the adjustment mechanism comprises a translation assembly arranged on the carrying platform and connected with the detection member, the translation assembly comprises at least two driving members, and the at least two driving members can drive the detection member to move in different directions on the surface of the carrying platform.
  6. 6. The device of any one of claims 1 to 3, further comprising a positioning member having a positioning mark, the positioning member being disposed on the same side of the detecting member as the imaging member, and the positioning member being disposed between the detecting member and the imaging member, the positioning mark being for marking an image formed by the detecting member on the imaging member.
  7. 7. A detection method applied to the detection device according to any one of claims 1 to 6, characterized by comprising: Based on the initial position parameters of the detection piece, the detection piece is irradiated by the ray beam, and image information formed on the imaging piece by an optical signal generated by the ray beam passing through the detection piece is determined; determining a correction position parameter of the detection piece based on the image information and a preset image standard; and adjusting the position of the detection piece based on the corrected position parameter, determining the image information formed by the detection piece on the imaging piece, and iteratively adjusting the position of the detection piece until the image information meets the preset image standard.
  8. 8. The inspection method of claim 7, wherein determining the corrected location parameter of the inspection piece based on the image information and a preset image standard comprises: Determining the definition of stripes and the position deviation direction of the detection piece formed on the imaging piece based on the image information and a preset image standard; and determining the correction position parameter of the detection piece based on the stripe definition and the position offset direction.
  9. 9. The inspection method according to claim 7, wherein adjusting the position of the inspection piece based on the corrected position parameter and determining the image information of the inspection piece formed on the imaging piece, iteratively adjusting the position of the inspection piece until the image information satisfies the preset image standard includes: based on the corrected position parameters, controlling the adjusting mechanism to drive the bearing table to move so as to adjust the position of the detecting piece; Illuminating the detection piece with the ray beam at the adjusted position, and determining image information formed on the imaging piece by an optical signal generated by the ray beam passing through the detection piece; Determining the definition of stripes and the position offset direction of the detection piece with the adjusted positions formed on the imaging piece based on the image information and a preset image standard; determining a correction position parameter of the detection piece based on the stripe definition and the position offset direction; and adjusting the position of the detection piece based on the corrected position parameter until the image information meets the preset image standard.
  10. 10. The method of detecting according to claim 7, further comprising: and calculating the focal spot size of the ray beam based on the image information meeting the preset image standard.

Description

Detection device and detection method Technical Field The application relates to the technical field of ray detection, in particular to a detection device and a detection method. Background In the related fields of petrochemical industry, aerospace, nuclear power equipment and the like, the operation safety and the industrial production stability of large-scale pressure-bearing equipment (such as thick-wall pipelines or pressure vessels) and internal defects (cracks, air holes or slag inclusions and the like) of welding structural members can be influenced. The focal point of the electronic linear accelerator is a core parameter affecting flaw detection imaging quality, and in the related art, the focal point measuring method generally adopts a ray beam irradiation detecting piece of the electronic linear accelerator for calculating the size of the ray beam intersection point. In the related art, the detection pieces are placed and adjusted manually, so that the labor and time are increased, the cost of the photosensitive film is increased, the cost is measured for a plurality of times, and the adjustment precision is low and the reproduction is not easy. Disclosure of Invention The detection device provided by the application can save labor and time cost and improve the adjustment precision. The application provides a detection device which comprises a ray device, a base, an imaging piece and an adjusting mechanism, wherein the ray device is used for generating a ray bundle, the base comprises a bearing table which is used for bearing the detection piece, the imaging piece is arranged on one side of the detection piece far away from the ray device, an optical signal generated by the ray bundle irradiating the detection piece can form an image on the imaging piece, the adjusting mechanism is arranged on the base, the bearing table is connected with the adjusting mechanism, and the adjusting mechanism can drive the bearing table to adjust in at least three degrees of freedom of movement relative to the ray device so as to adjust the position of the detection piece relative to the ray bundle. The detection device provided by the application has the advantages that the base can provide a mounting foundation and support for the bearing table and the detection piece, the bearing table can be driven by the adjusting mechanism to adjust (such as translation, rotation or inclination) in at least three degrees of freedom relative to the ray device, so that the position and the angle of the detection piece in space can be flexibly adjusted under the condition that the ray device is not moved, the position and the angle of the detection piece can be accurately adjusted through the multi-degree-of-freedom motion of the bearing table, and the optical signal generated by the radiation beam irradiating the detection piece can be adjusted through adjusting the angle between the detection piece and the radiation beam, so that the image generated on the imaging piece is adjusted. Because the adjustment process of the plummer acts on the space gesture of detecting the piece, consequently can adjust plummer or the space gesture of detecting the piece through adjustment mechanism, this process has reduced operating personnel's operation, and can be at the in-process quick adjustment detecting the piece's of a lot of detection or scanning position, consequently, can save manual work and time cost, and improve the regulation precision. In one possible implementation of the present application, the adjusting mechanism includes a rotating assembly, where the rotating assembly is disposed on the base, and rotatably connects the carrying platform with the base, so that the carrying platform can rotate around a first axis relative to the base, and the first axis is parallel to a height direction of the base. In one possible implementation of the present application, the adjusting mechanism further includes a turnover assembly, wherein the first side of the carrying platform is rotatably connected with the base, the turnover assembly is connected with the second side of the carrying platform, the turnover assembly is capable of driving the second side to rotate around the axis of the first side, and the direction of the rotation axis of the first side is different from the direction of the first axis. In one possible implementation manner of the present application, the adjusting mechanism further includes a lifting assembly, the lifting assembly is disposed on the base and connected to the bearing platform, and the lifting assembly is used for driving the bearing platform to move along the height direction of the base relative to the base. In one possible implementation manner of the application, the adjusting mechanism comprises a translation component, the translation component is arranged on the bearing table and is connected with the detection piece, the translation component comprises at least two driving pieces, and the at least