CN114485495A - Device and method for correcting instability of X-ray of thickness gauge in real time - Google Patents
Device and method for correcting instability of X-ray of thickness gauge in real time Download PDFInfo
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- CN114485495A CN114485495A CN202210001933.7A CN202210001933A CN114485495A CN 114485495 A CN114485495 A CN 114485495A CN 202210001933 A CN202210001933 A CN 202210001933A CN 114485495 A CN114485495 A CN 114485495A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
The invention relates to the technical field of measurement and discloses a device and a method for correcting instability of X-rays of a thickness gauge in real time. In the measuring process of the X-ray thickness gauge, two detectors are arranged, namely an X-ray detector for acquiring the intensity of X-rays emitted by an X-ray machine and an X-ray detector for acquiring the intensity of the X-rays emitted by the X-ray machine after passing through a steel belt, and signals of the two detectors are simultaneously accessed to a signal acquisition board for an upper computer to use; the intensity of the X-ray detected by the X-ray detector is used as a reference value, and the thickness of the steel belt to be detected can be obtained by comparing the intensity of the X-ray detected by the X-ray detector and the intensity of the X-ray detected by the detector after the X-ray passes through the steel belt. The invention solves the problem that the measurement precision of the thickness gauge is influenced due to the production environment and the self stability of the equipment at present. In addition, the detectors adopted by the invention are cesium iodide detectors, and the cesium iodide detector has the advantages of stability, advancement, easiness in operation, no great change along with the change of temperature and the like.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a device and a method for correcting instability of X-rays of a thickness gauge in real time.
Background
With the increasing economic level and the increasing industrialization level of China, the application of the steel material in various industries is more and more extensive, and with the continuous progress of the manufacturing industry of China, the quality requirement of the steel material is higher and higher, wherein the thickness of the steel material is the most strict requirement of all quality indexes. Therefore, the measurement accuracy and stability of the thickness gauge determine the performance of the whole rolling mill system, and further determine the process level of the whole steel industry.
At present, the thickness of the steel material is measured by using an ionization chamber detector, but the ionization chamber detector has the following disadvantages when in use: the temperature of the detector will gradually rise with the increase of the working time, and after the temperature rises, the detector needs to be continuously corrected.
The X-ray thickness gauge which can realize the rapid measurement and is in a non-contact mode is a key measuring device of a thickness control system of a modern rolling mill. For the measurement of plates with different thicknesses, the measurement precision can be improved by adjusting and setting different ray intensities, and for an X-ray thickness gauge, the influence of the change of the X-ray intensity on the measurement precision is a main factor among a plurality of factors influencing the measurement precision. Because the production field has more electrical equipment, the environmental condition is poorer, and various factors such as electromagnetic interference, temperature, humidity and the like can cause the radiation intensity of the rays emitted by the X-ray source to change, and the change directly causes the measurement of the X-ray thickness gauge to have errors, thereby causing the reduction of the measurement precision.
Disclosure of Invention
In view of the above, the present invention provides a device and a method for correcting instability of X-ray of a thickness gauge in real time, which aims to solve the problems pointed out in the background art.
In order to achieve the purpose of the invention, the technical scheme is as follows:
a device for correcting X-ray instability of a thickness gauge in real time comprises a C-shaped frame, wherein wheels are mounted at the bottom of the C-shaped frame, the C-shaped frame is arranged on a guide rail, a position sensor is arranged on the guide rail, a driving motor for driving the C-shaped frame to reciprocate along the length direction of the guide rail is mounted on a lower cantilever of the C-shaped frame, and a chain wheel is mounted on the driving motor and connected with a drag chain;
x-ray machine and X light detector are installed to the inboard of cantilever on the C type frame, X light detector sets up the below at the X-ray machine, is used for acquireing the intensity of the X ray that the X-ray machine sent, the position that the inboard of cantilever is located the X-ray machine below under the C type frame is installed X light and is passed through behind the steel band detector, and X light detector and X light are provided with the steel band after passing through behind the steel band between the detector, X light is used for acquireing after passing through behind the steel band detector the intensity behind the X ray process steel band that the X-ray machine sent, X light detector, X light pass through behind the steel band detector simultaneously with the signal acquisition board be connected, the signal acquisition board is connected with the host computer and feeds back the host computer with its signal of gathering.
As a further improvement of the invention, the X-ray detector and the detector after the X-ray passes through the steel belt are cesium iodide detectors.
As a further improvement of the invention, the driving motor is a servo motor, and the moving position of the C-shaped frame can be controlled more accurately.
As a further improvement of the invention, the driving motor and the position sensor are respectively connected with an electric control cabinet.
As a further improvement of the invention, a compressed air inlet is arranged on the cantilever on the C-shaped frame, the compressed air inlet is connected with a compressed air storage tank through a pipeline, and clean and dry compressed air is filled in the compressed air storage tank.
A method of correcting thickness gauge X-ray instability in real time, comprising:
in the measuring process of the X-ray thickness gauge, two detectors are arranged, namely an X-ray detector and a detector for detecting X-rays after the X-rays pass through a steel belt, wherein the X-ray detector is used for acquiring the intensity of the X-rays emitted by the X-ray machine, and the detector for detecting the X-rays after the X-rays pass through the steel belt is used for acquiring the intensity of the X-rays emitted by the X-ray machine after the X-rays pass through the steel belt;
the X-ray detector and the X-ray detector are simultaneously connected to the signal acquisition board after passing through the steel strip, the signal acquisition board feeds acquired signals back to the upper computer, the upper computer reads out two signals simultaneously, the intensity of the X-ray detected by the X-ray detector is used as a reference value, and the thickness of the steel strip to be detected can be obtained by comparing the intensity of the X-ray detected by the X-ray detector and the X-ray detector after passing through the steel strip.
The beneficial effects of the invention are: the invention takes the intensity of the X-ray detected by the X-ray detector as a reference value, and the thickness of the steel strip to be detected can be obtained by comparing the intensity of the X-ray detected by the X-ray detector and the intensity of the X-ray detected by the detector after the X-ray passes through the steel strip. The invention solves the problem that the measurement precision of the thickness gauge is influenced by the production environment and the self stability of the equipment in the conventional X-ray thickness gauge. In addition, the detectors adopted by the invention are cesium iodide detectors, and the cesium iodide detector has the advantages of stability, advancement, easy operation, no great change along with the change of temperature and the like, and solves the problem that the conventional ionization chamber detector needs to be continuously corrected due to the rise of temperature during use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the device for correcting instability of X-rays of a thickness gauge in real time.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
As shown in fig. 1, a device for correcting instability of X-ray of a thickness gauge in real time comprises a C-shaped frame 1, wherein wheels 4 are mounted at the bottom of the C-shaped frame 1, the C-shaped frame 1 is arranged on a guide rail 3, a position sensor 11 is arranged on the guide rail 3, a driving motor 2 for driving the C-shaped frame 1 to reciprocate along the length direction of the guide rail 3 is mounted on a lower cantilever of the C-shaped frame 1, a chain wheel is mounted on the driving motor 2, and the chain wheel is connected with a drag chain 10;
x-ray machine 5 and X-ray detector 6 are installed to the inboard of cantilever on C type frame 1, X-ray detector 6 sets up in the below of X-ray machine 5 for acquire the intensity of the X ray that X-ray machine 5 sent, the inboard position that is located X-ray machine 5 below under C type frame 1 is installed X-ray and is passed through behind the steel band detector 7, is provided with steel band 8 between X-ray detector 6 and the X-ray detector 7 after passing through the steel band, X-ray is used for acquireing behind the steel band detector 7 the intensity behind steel band 8 of the X ray that X-ray machine 5 sent, X-ray detector 6, X-ray are connected with signal acquisition board (not drawn in the picture) simultaneously after passing through the steel band detector 7, the signal acquisition board is connected and feeds back the signal that it gathered to the host computer (not drawn in the picture).
The X-ray detector 6 and the detector 7 after the X-ray passes through the steel belt are cesium iodide detectors.
The driving motor 2 is a servo motor, and can more accurately control the moving position of the C-shaped frame 1.
The driving motor 2 and the position sensor 11 are respectively connected with an electric control cabinet 12.
A compressed air inlet is formed in the upper cantilever of the C-shaped frame 1 and connected with a compressed air storage tank 9 through a pipeline, and clean and dry compressed air is filled in the compressed air storage tank 9.
Example 2
A method of correcting thickness gauge X-ray instability in real time, comprising:
in the measuring process of the X-ray thickness gauge, two detectors, namely an X-ray detector 6 and a detector 7 after X-rays pass through a steel belt, are arranged, wherein the X-ray detector 6 is used for acquiring the intensity of the X-rays emitted by the X-ray machine 5, and the detector 7 after the X-rays pass through the steel belt is used for acquiring the intensity of the X-rays emitted by the X-ray machine 5 after the X-rays pass through a steel belt 8;
the X-ray detector 6 and the X-ray detector 7 are simultaneously connected to the signal acquisition board after passing through the steel strip, the signal acquisition board feeds acquired signals back to the upper computer, the upper computer reads out two signals simultaneously, the intensity of the X-ray detected by the X-ray detector 6 is used as a reference value, and the thickness of the steel strip 8 to be detected can be obtained by comparing the intensity of the X-ray detected by the X-ray detector 6 and the intensity of the X-ray detected by the X-ray detector 7 after passing through the steel strip.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a device of real-time correction calibrator X ray unstability which characterized in that: the C-shaped frame is provided with wheels at the bottom and arranged on a guide rail, a position sensor is arranged on the guide rail, a driving motor for driving the C-shaped frame to reciprocate along the length direction of the guide rail is arranged on a lower cantilever of the C-shaped frame, and a chain wheel is arranged on the driving motor and connected with a drag chain;
x-ray machine and X light detector are installed to the inboard of cantilever on the C type frame, X light detector sets up the below at the X-ray machine, is used for acquireing the intensity of the X ray that the X-ray machine sent, the position that the inboard of cantilever is located the X-ray machine below under the C type frame is installed X light and is passed through behind the steel band detector, and X light detector and X light are provided with the steel band after passing through behind the steel band between the detector, X light is used for acquireing after passing through behind the steel band detector the intensity behind the X ray process steel band that the X-ray machine sent, X light detector, X light pass through behind the steel band detector simultaneously with the signal acquisition board be connected, the signal acquisition board is connected with the host computer and feeds back the host computer with its signal of gathering.
2. The apparatus according to claim 1, wherein the apparatus for correcting instability of X-ray of thickness gauge in real time comprises: and the X-ray detector and the detector after the X-ray passes through the steel belt are cesium iodide detectors.
3. The apparatus according to claim 1, wherein the apparatus for correcting instability of X-ray of thickness gauge in real time comprises: the driving motor is a servo motor.
4. The apparatus according to claim 1, wherein the apparatus for correcting instability of X-ray of thickness gauge in real time comprises: the driving motor and the position sensor are respectively connected with an electric control cabinet.
5. The apparatus according to claim 1, wherein the apparatus for correcting instability of X-ray of thickness gauge in real time comprises: and a compressed air inlet is arranged on the cantilever on the C-shaped frame and is connected with a compressed air storage tank through a pipeline.
6. A method for correcting instability of X-rays of a thickness gauge in real time is characterized by comprising the following steps:
in the measuring process of the X-ray thickness gauge, two detectors are arranged, namely an X-ray detector and a detector for detecting X-rays after the X-rays pass through a steel belt, wherein the X-ray detector is used for acquiring the intensity of the X-rays emitted by the X-ray machine, and the detector for detecting the X-rays after the X-rays pass through the steel belt is used for acquiring the intensity of the X-rays emitted by the X-ray machine after the X-rays pass through the steel belt;
the X-ray detector and the X-ray detector are simultaneously connected to the signal acquisition board after passing through the steel strip, the signal acquisition board feeds acquired signals back to the upper computer, the upper computer simultaneously reads out the two signals, the intensity of the X-ray detected by the X-ray detector is used as a reference value, and the thickness of the steel strip to be detected can be obtained by comparing the intensity of the X-ray detected by the X-ray detector and the X-ray detected by the X-ray detector after passing through the steel strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001933.7A CN114485495A (en) | 2022-01-04 | 2022-01-04 | Device and method for correcting instability of X-ray of thickness gauge in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001933.7A CN114485495A (en) | 2022-01-04 | 2022-01-04 | Device and method for correcting instability of X-ray of thickness gauge in real time |
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| Publication Number | Publication Date |
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| CN114485495A true CN114485495A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210001933.7A Pending CN114485495A (en) | 2022-01-04 | 2022-01-04 | Device and method for correcting instability of X-ray of thickness gauge in real time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117109491A (en) * | 2023-10-23 | 2023-11-24 | 北京华力兴科技发展有限责任公司 | Calibration support for X-ray thickness gauge |
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| CN104475462A (en) * | 2014-11-24 | 2015-04-01 | 北京金自天正智能控制股份有限公司 | On-line correction device and method of X-ray thickness gauge |
| CN104930992A (en) * | 2015-06-15 | 2015-09-23 | 安徽工程大学 | Thickness gauge |
| CN109975342A (en) * | 2019-04-03 | 2019-07-05 | 成都理工大学 | A kind of spectrum stability bearing calibration of X-ray tube and device |
| CN110064562A (en) * | 2019-03-28 | 2019-07-30 | 曹海东 | A kind of process equipment and processing method of high performance motor iron core |
-
2022
- 2022-01-04 CN CN202210001933.7A patent/CN114485495A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967222A (en) * | 2005-11-17 | 2007-05-23 | 邸生才 | X-ray cut tobacco fill value measuring method and device therefor |
| CN101046373A (en) * | 2007-05-09 | 2007-10-03 | 北京北科合作仪器厂 | Continuous precise metal belt measuring X-ray process and equipment |
| CN202511772U (en) * | 2012-04-16 | 2012-10-31 | 安徽工程大学 | X-ray metal material thickness measurement device |
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| CN104475462A (en) * | 2014-11-24 | 2015-04-01 | 北京金自天正智能控制股份有限公司 | On-line correction device and method of X-ray thickness gauge |
| CN104930992A (en) * | 2015-06-15 | 2015-09-23 | 安徽工程大学 | Thickness gauge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117109491A (en) * | 2023-10-23 | 2023-11-24 | 北京华力兴科技发展有限责任公司 | Calibration support for X-ray thickness gauge |
| CN117109491B (en) * | 2023-10-23 | 2024-01-23 | 北京华力兴科技发展有限责任公司 | Calibration support for X-ray thickness gauge |
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