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Digitalized detail visualizer of industrial X-ray negative with variable zooming ratio

A magnification, X-ray technology, applied in the field of industrial X-ray film digital detail observer, can solve the problems of high density, difficult to detail image information, large dynamic range, etc.

Inactive Publication Date: 2010-06-02
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the film scanning process, the scanning resolution and the real-time adjustment of the scanning dynamic range are limited
For some X-ray industrial films with high density, large dynamic range, and some small local information, it is difficult to obtain detailed image information

Method used

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  • Digitalized detail visualizer of industrial X-ray negative with variable zooming ratio
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  • Digitalized detail visualizer of industrial X-ray negative with variable zooming ratio

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Embodiment Construction

[0024] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] The components of this device are assembled as follows figure 1 As shown, each component in the figure is described in detail as follows:

[0026] 1. Light source 1 uses 4 high-power LEDs to form an area array white light source. Length 100mm, width 50mm, power 40w, driving voltage 60V-72V, maximum current 700mA, luminous flux 2800LM-3200LM;

[0027] 2. Condenser cover 2 adopts 100mm×50mm frosted glass or Fresnel lens. The frosted glass or Fresnel lens is installed on the upper surface of the square frame, and the frame is covered on the light source 1; the inner surface of the frame is white or has a reflector.

[0028] 3. There are two working modes for light source lighting, one is a low-current driving long-term lighting working mode; the other is a high-current instantaneous driving lighting mode, which is triggered synchronously...

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Abstract

The invention relates to a digitalized detail visualizer of an industrial X-ray negative with a variable zooming ratio, realizing the digitalized processing of an X-ray negative for detecting an industrial welding line. The device comprises a light source (1), a three-level variable lens (3), a digital camera head (6) connected with the lens (3), a computer (10) connected with the digital camera head (6), a focusing hood (2), a travel mechanism, a focusing mechanism and a step motor controller (9), wherein the computer (10) contains definition-judging and automatic focusing programs. The invention adopts even LED strong light to transmit the negative to provide illumination, uses the three-level variable microspur lens and the industrial area-array digital camera head to image the negative, collect and convey the image to the computer in real time. An operator can send out a control instruction by the computer and drive a motion system to zoom the image collected by the negative so as to observe the partial details of the negative. In the zooming process, the computer drives the focusing mechanism by the definition judgment and automatic focusing algorithms to automatically focus in real time and prevent the image from being distorted in the zooming process.

Description

technical field [0001] The invention is an industrial X-ray negative film digital detail observer with variable magnification, which is used for realizing digital processing of industrial welding seam detection X-ray film. Background technique [0002] Since the appearance of X-ray inspection technology, X-ray inspection digitization technology has been attracting attention. With the improvement and development of the traditional equipment manufacturing industry towards informatization and intelligence, the demand for digital image acquisition, storage management and automatic evaluation of industrial X-ray film is put forward. Among them, as the first step of informatization, the realization of X-ray film For the non-destructive (no loss of evaluation information, no distortion), long-term and effective storage, transmission and management of X-ray negatives, the research on digital image acquisition of X-ray negatives and automatic acquisition of defect information is part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/02
Inventor 闫志鸿刘阳宋永伦
Owner BEIJING UNIV OF TECH
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