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An online calibration device and method for an X-ray thickness gauge

A correction device, X-ray technology, applied in the direction of length measuring device, metal processing equipment, metal rolling, etc., can solve problems such as measurement error, achieve the effect of improving control accuracy, ensuring tolerance requirements, and eliminating the influence of measurement accuracy

Active Publication Date: 2016-08-24
BEIJING ARITIME INTELLIGENT CONTROL
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  • Description
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Problems solved by technology

[0006] The object of the present invention is to provide an online calibration device and method for an X-ray thickness gauge to solve the problem of measurement errors caused by changes in X-ray intensity during the real-time measurement process of the X-ray thickness gauge

Method used

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  • An online calibration device and method for an X-ray thickness gauge
  • An online calibration device and method for an X-ray thickness gauge
  • An online calibration device and method for an X-ray thickness gauge

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Embodiment Construction

[0054] The present invention will be described in detail below with reference to the drawings and embodiments.

[0055] The present invention will be described in detail below with reference to the drawings and embodiments.

[0056] Such as figure 1 As shown, the present invention provides an online correction device for an X-ray thickness gauge, including: a ray beam splitter 100, an intensity acquisition module 101 and a correction module 102;

[0057] The ray beam splitter 100 is used to divide the X-rays used by the X-ray thickness gauge into working rays and non-working rays, the working rays are used to measure the thickness of the object to be measured, and the non-working rays are used To obtain the intensity of the X-ray;

[0058] The intensity acquisition module 101 is connected to the correction module 102, and is configured to obtain the X-ray intensity of the X-ray thickness gauge when the X-ray thickness gauge is in operation according to the non-working rays;

[0059] Th...

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Abstract

The invention provides an on-line correction device and method of an X-ray thickness gauge. The method includes that during measurement of the X-ray thickness gauge, X ray is divided into working ray and non-working ray, the working ray is used for measuring thickness of a measured object, and the non-working ray is used for obtaining strength of the X ray; the strength of the X ray is monitored according to the non-working ray; when the strength change of the X ray exceeds a threshold value, a calibration curve is corrected, and the calibration curve is a relation curve between the working ray and the thickness of the measured object. The on-line correction device and method of the X-ray thickness gauge has the advantages that the influence of the strength changes of the X ray on the measuring accuracy can be eliminated, accurate thickness measured values can be provided for a rolling mill thickness controlling system, increasing of the controlling accuracy of a rolling mill can be facilitated, and the requirement of tolerance of rolled strip materials can be guaranteed.

Description

Technical field [0001] The invention belongs to the technical field of metal plate and strip rolling in the metallurgical industry, and particularly relates to an online correction device and method for an X-ray thickness gauge. Background technique [0002] As a non-contact X-ray thickness gauge that can achieve rapid measurement, it is the key measurement equipment for modern rolling mill thickness control systems. For the measurement of plates of different thicknesses, different ray intensities can be adjusted to improve the measurement accuracy. For X-ray thickness gauges, among the many factors that affect the measurement accuracy, the change in X-ray intensity has a major impact on the measurement accuracy. factor. [0003] In order to ensure the accuracy and stability of the X-ray thickness gauge, predecessors have done a lot of work. From the 1960s to the 1970s, a dual-channel X-ray thickness gauge was developed and put into use, such as Toshiba 603A. This type of thickn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B38/04
Inventor 党红文邱忠义常蕾麻硕李小刚
Owner BEIJING ARITIME INTELLIGENT CONTROL
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