CN1392403A - X-ray detector - Google Patents
X-ray detector Download PDFInfo
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- CN1392403A CN1392403A CN 01121649 CN01121649A CN1392403A CN 1392403 A CN1392403 A CN 1392403A CN 01121649 CN01121649 CN 01121649 CN 01121649 A CN01121649 A CN 01121649A CN 1392403 A CN1392403 A CN 1392403A
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Abstract
One X-ray examination equipment for the material of embedded matter inside ancient artistic works, is provided. When some tube voltage is applied, the X-ray generator will generate X ray illuminating the tested body and the X-ray detector will detect the X ray permeating the tested body. The CPU and find out image brightness change of the fluoroscopic image produced by the embedded matter and the material of the matter may be judged.
Description
The present invention relates to judge the X ray checking device of the excremental material (material) in the detected bodies such as being embedded in the antiquated artwork.
In recent years, be housed in the small packet or the content in the detected bodies such as radioactive waste in the bucket, designed X ray checking device in order to judge.X ray checking device be from x ray generator with x-ray bombardment on detected body, detect the X ray seen through detected body with X-ray detector, make a kind of device of fluoroscopy images according to the X ray that sees through.The gradation value (brightness) of fluoroscopy images is difference along with the size that is applied to the tube voltage on the x ray generator.
, in as antiquated artworks such as the antiquated artwork of cultural heritage, for example figures of buddha, be provided with web members such as chock as reinforcement material.In the period that must keep in repair these antiquated artworks, need to differentiate the material (material of web member) of the embedded object in the detected bodies such as being embedded in the figure of buddha.
So far, the known method of utilizing X ray checking device to judge the material that is housed in the radioactive waste in the bucket.This method for example is documented in, and the spy opens in the flat 10-319192 communique.Existing technology is that the figure to the variation characteristic of the variation characteristic of the gradation value of utilizing the fluoroscopy images that X ray checking device takes and setting compares, and judges the material of radioactive waste.Relatively there is the problem of comparison process trouble in the figure of the variation characteristic of gradation value.
Therefore,, wish to judge more simply material, wish this technology of exploitation consumingly in order to judge the material of the embedded object of burying underground in the so detected body of the great antiquated artwork of quantity.
The object of the present invention is to provide a kind of X ray checking device that can judge the material that resembles the detected body that to predict material the antiquated artwork simply.
The invention is characterized in: the fluoroscopy images that makes the Transmission X ray generation that detects by X-ray detector, judge embedded object, change is added in the size of the tube voltage on the x ray generator, ask the gradation value rate of change of the embedded object image in the fluoroscopy images of repeatedly taking, judge the material (material) of embedded object according to the size of gradation value rate of change.
More particularly, be characterised in that: change is added in the size of the tube voltage on the x ray generator, ask the gradation value rate of change of the embedded object image in the fluoroscopy images of repeatedly taking, in the various material each is compared with the setting value of predetermined gradation value rate of change, judge the material of embedded object.
The present invention is because change is added in the size of the tube voltage on the x ray generator, according to the size of the gradation value rate of change of the embedded object image in the fluoroscopy images of repeatedly taking, judges the material of embedded object, so can carry out the judgement of the material of embedded object simply.
Fig. 1 is the structural drawing of an expression example of the present invention.
Fig. 2 is the functional block diagram of the major part of expression computing machine.
Fig. 3 is the performance diagram that explanation the present invention uses.
Fig. 4 is the performance diagram that explanation the present invention uses.
Fig. 5 is an illustration of the display frame of detected body.
One embodiment of the invention have been shown among Fig. 1.
In Fig. 1, if x ray generator 3 has been applied in high voltage (tube voltage) from voltage generation circuit 2, just with x-ray bombardment on detected body 4.Detected body 4 is placed on the stand 5.X-ray detector 6 is configured in the position relative with x ray generator 3, and both are clipped in the middle detected body 4, detects the X ray that has seen through detected body 4.
Voltage generation circuit 2 is according to the control signal of operation board (operating means) 1, the generation of control tube voltage and size.After the fluoroscopy images (fluoro data) that is detected by x-ray detection device 6 is transfused to testing circuit 7, is transformed into digital signal with A/D transducer 8, and is taken in the computing machine (CPU) 9.CPU9 is from operation board 1 input pipe voltage signal.As CPU9, adopt personal computer.The information about the material of the embedded object of detected body 4 of being tried to achieve by CPU9 is presented on the display part 10.
The functional block diagram of the major part of CPU9 has been shown among Fig. 2.
In Fig. 2, perspective image data is transfused to image data input unit 21 after being transformed into digital signal by A/D transducer 8, is stored in the fluoroscopy images storage part 22.The fluoroscopy images of storage is supplied to display control unit 32 in the fluoroscopy images storage part 22, shows on display part 33.In addition, embedded object judging part 23 is taken into fluoroscopy images from fluoroscopy images storage part 22, judges embedded object, and the embedded object image is added in the gradation value operational part 24.
Embedded object image that gradation value operational part 24 input applies from embedded object judging part 23 and the tube voltage data that are taken into by voltage data input part 25 are carried out computing to the gradation value (brightness) of each tube voltage size, and are deposited in the gradation value storage part 26.The gradation value that is stored in the embedded object image in the gradation value storage part 26 is presented on the display part 33 by display control unit 32.Rate of change operational part 27 is taken into the gradation value of each tube voltage size from gradation value storage part 26, obtains gradation value rate of change, supplies with material judging part 28.
As the product of burying underground (web member) that are embedded in the detected body (the antiquated artwork) 4, be set in the rate of change configuration part 29 with the gradation value rate of change setting value of the material (material) of each employed expectation.Material as embedded object has bronze, iron, gold, copper etc.
Gradation value rate of change that 28 pairs of material judging parts are tried to achieve by rate of change operational part 27 and the gradation value rate of change of setting in rate of change configuration part 29 compare, and according to the gradation value rate of change setting value of gradation value rate of change unanimity, judge material.Material by the specific embedded object of material judging part 28 is presented on the display part 33 by display control unit 32.
The gradation Value Data of the embedded object image in the perspective image data in the fluoroscopy images storage part 22, the gradation value storage part 26 and the embedded object material quality data in the material judging part 28 are transfused in the display control unit 32, are presented at display part 33 (being equivalent on the display part 10 among Fig. 1).Data presented can utilize input devices such as the not shown mouse of CPU9 or keyboard to be selected on display part 33.
Next illustrates working condition.
After being placed on detected body 4 on the stand 5, operating operation dish 1 is with control signal service voltage generating means 2.The generation instruction and the big small instruction tube voltage signal that in control signal, comprise tube voltage.The tube voltage signal of operating operation dish 1 is supplied to CPU9.
If voltage generation circuit 2 has been imported the control signal of operation board (operating means) 1, just the tube voltage of indicated size is added on the x ray generator 3.If x ray generator 3 has been applied in tube voltage, just with x-ray bombardment on detected body 4.Detect the X ray that shines and seen through detected body 4 from x ray generator 3 by X-ray detector 6.
After being transfused to testing circuit 7 with X-ray detector 6 detected transmitted X-rays, be transformed into digital signal, be taken in the computing machine (CPU) 9 with A/D transducer 8.As mentioned above, the tube voltage signal also is input to the CPU9 from operation board 1.
The perspective image data that is digital signal that is transfused in the image data input unit 21 of CPU9 is deposited in the fluoroscopy images storage part 22.The fluoroscopy images that is stored in the fluoroscopy images storage part 22 is supplied to display control unit 32, is presented on the display part 33.If in the detected body 4 embedded object is arranged, the fluoroscopy images of then detected body 4 also shows embedded object 4A, 4B as shown in Figure 5.Fig. 5 represents to have the example of two embedded objects.
Go up embedded object image 4A, the 4B that shows if utilize not shown input device to be chosen in display part 33 (being 10) in Fig. 1, then fluoroscopy images is taken into the embedded object judging part 23 from fluoroscopy images storage part 22, embedded object is judged, the embedded object image is added in the gradation value operational part 24.
Embedded object image that gradation value operational part 24 input adds from embedded object judging part 23 and the tube voltage data that are taken into voltage data input part 25 carry out being stored in the gradation value storage part 26 after the computing to the gradation value (brightness) of each tube voltage size.
If getting the longitudinal axis is the gradation value, getting transverse axis is tube voltage, then with the gradation value of gradation value operational part 24 computings as shown in Figure 3.Tube voltage is about 65kV～100kV.Family curve a among Fig. 3 is an iron, and family curve b is a copper, and family curve c is a bronze.
Family curve from Fig. 3 as can be known, by change gradation value rate of change that x-ray tube voltage causes along with the difference of the embedded object material of detected body 4 difference.In addition, identical material is under the different situation of thickness, and as shown in Figure 4, if thickness increases, then just the gradation value descends, and rate of change is roughly the same.Family curve A2 is the thickness ratio characteristic curve A 1 gradation value family curve when big.
The embedded object image gradation value of storage is presented on the display part 33 by display control unit 32 in the gradation value storage part 26.Rate of change operational part 27 is taken into the gradation value of each tube voltage size from gradation value storage part 26, obtains gradation value rate of change, supplies with material judging part 28.
Rate of change operational part 27 is taken into the gradation value of each tube voltage size from gradation value storage part 26, obtains gradation value rate of change, supplies with material judging part 28.Gradation value rate of change that 28 pairs of material judging parts are tried to achieve with rate of change operational part 27 and the gradation value rate of change setting value of setting in rate of change configuration part 29 compare, according to the gradation value rate of change setting value of gradation value rate of change unanimity, judge the embedded object material.Make gradation value rate of change setting value have the amplitude of regulation, carry out the judgement of gradation value rate of change unanimity.
, be presented on the display part 33 by display control unit 32 with the material of material judging part 28 specific embedded object 4A, 4B.In addition, the gradation Value Data in perspective image data in the fluoroscopy images storage part 22 and the gradation value storage part 26 also is transfused in the display control unit 32, is presented on the display part 33.Utilize input devices such as the not shown mouse of CPU9 or keyboard, select to be presented at the data on the display part 33.
Judge the material of detected body although it is so, but owing to obtain the gradation value rate of change of the fluoroscopy images of the X ray generation that has seen through detected body, according to the size of gradation value rate of change, judge the material of embedded object, judge so can carry out the material of embedded object simply.
In addition, the above embodiments are owing to the material information of the embedded object that shows detected body, so on one side the overlooker can discern material information, Yi Bian check, can simply and carry out the material judgement of detected body embedded object exactly.
As mentioned above, the present invention judges so can carry out the material of detected body embedded object simply because the size of the gradation value rate of change of the fluoroscopy images that the X ray that basis sees through produces is judged the material of detected body embedded object.
Claims (6)
1. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on detected body; Detection has seen through the X-ray detector of the X ray of above-mentioned detected body; Change is added in the voltage-operated device of the size of the tube voltage on the above-mentioned x ray generator; And the fluoroscopy images that makes the transmitted X-rays generation that detects with above-mentioned X-ray detector, judge embedded object, the size of change aforementioned tube voltage, obtain the gradation value rate of change of the above-mentioned embedded object image in the above-mentioned fluoroscopy images of repeatedly taking, according to the size of above-mentioned gradation value rate of change, judge the computing machine of the material of above-mentioned embedded object.
2. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on detected body; Detection has seen through the X-ray detector of the X ray of above-mentioned detected body; Change is added in the voltage-operated device of the size back irradiation X ray of the tube voltage on the above-mentioned x ray generator; And the fluoroscopy images that makes the transmitted X-rays generation that detects with above-mentioned X-ray detector, judge embedded object, the size of change aforementioned tube voltage, obtain the gradation value rate of change of the above-mentioned embedded object image in the above-mentioned fluoroscopy images of repeatedly taking, compare with the gradation value rate of change setting value that each material in the various material is scheduled to, judge the computing machine of the material of above-mentioned embedded object.
3. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on detected body; Detection has seen through the X-ray detector of the X ray of above-mentioned detected body; Change is added in the voltage-operated device of the size back irradiation X ray of the tube voltage on the above-mentioned x ray generator; Make the fluoroscopy images of the transmitted X-rays generation that detects with above-mentioned X-ray detector, judge embedded object, the size of change aforementioned tube voltage, obtain the gradation value rate of change of the above-mentioned embedded object image in the above-mentioned fluoroscopy images of repeatedly taking, compare with the gradation value rate of change setting value that each material in the various material is scheduled to, judge the computing machine of the material of above-mentioned embedded object; And the display device that shows the material information of the above-mentioned embedded object of trying to achieve with above-mentioned computing machine.
4. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on detected body; Detection has seen through the X-ray detector of the X ray of above-mentioned detected body; Change the voltage-operated device of the size back irradiation X ray of the tube voltage that is added on the above-mentioned x ray generator interimly; Make the fluoroscopy images of the transmitted X-rays generation that detects with above-mentioned X-ray detector, judge embedded object, change the size of aforementioned tube voltage interimly, obtain the gradation value rate of change of the above-mentioned embedded object image in the above-mentioned fluoroscopy images of repeatedly taking, the gradation value rate of change setting value of each material in the gradation value rate of change by above-mentioned embedded object image and the predetermined various material is consistent, judges the computing machine of the material of above-mentioned embedded object; And the display device that shows the gradation value rate of change characteristic of the above-mentioned embedded object image of trying to achieve with above-mentioned computing machine.
5. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on detected body; Detection has seen through the X-ray detector of the X ray of above-mentioned detected body; Be added in the voltage generation circuit of the tube voltage on the above-mentioned x ray generator; Control the operating means of the size of the tube voltage that above-mentioned voltage generation circuit takes place; The fluoroscopy images memory storage of the fluoroscopy images that the transmitted X-rays that storage detects with above-mentioned X-ray detector produces; Judge the embedded object judgment means of the embedded object of taking in the above-mentioned fluoroscopy images; Change the size of aforementioned tube voltage, obtain the rate of change arithmetic unit of the gradation value rate of change of the above-mentioned embedded object image in the above-mentioned fluoroscopy images of repeatedly taking; Gradation value rate of change to above-mentioned embedded object image compares with the gradation value rate of change setting value that each material in the various material is scheduled to, and judges the material judgment means of the material of above-mentioned embedded object; And the display device that shows the material information of above-mentioned embedded object.
6. an x-ray detection device is characterized in that having: with the x ray generator of x-ray bombardment on the antiquated artwork; Detection has seen through the X-ray detector of the X ray of the above-mentioned antiquated artwork; Be added in the voltage generation circuit of the tube voltage on the above-mentioned x ray generator; Make the operating means of the variable size of the tube voltage that above-mentioned voltage generation circuit takes place interimly; The fluoroscopy images memory storage of the fluoroscopy images that the transmitted X-rays that storage detects with above-mentioned X-ray detector produces; Judge the embedded object judgment means of the web member of burying underground in the above-mentioned antiquated artwork of taking in the above-mentioned fluoroscopy images; Change the size of aforementioned tube voltage, obtain the rate of change arithmetic unit of the brightness rate of change of the above-mentioned web member image of burying underground in the above-mentioned fluoroscopy images of repeatedly taking; To the brightness rate of change of the above-mentioned web member image of burying underground with each the material predetermined brightness rate of change setting value in the various material is compared, judge the material judgment means of the material of the above-mentioned web member of burying underground; And the display device that shows the material information of the above-mentioned web member of burying underground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01121649 CN1392403A (en) | 2001-06-20 | 2001-06-20 | X-ray detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01121649 CN1392403A (en) | 2001-06-20 | 2001-06-20 | X-ray detector |
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| CN1392403A true CN1392403A (en) | 2003-01-22 |
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| CN 01121649 Pending CN1392403A (en) | 2001-06-20 | 2001-06-20 | X-ray detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677099B (en) * | 2004-03-31 | 2011-03-16 | 日本碍子株式会社 | Method for inspecting ceramic structures |
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2001
- 2001-06-20 CN CN 01121649 patent/CN1392403A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677099B (en) * | 2004-03-31 | 2011-03-16 | 日本碍子株式会社 | Method for inspecting ceramic structures |
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