CN210690449U - Radiographic negative film information identification imager - Google Patents
Radiographic negative film information identification imager Download PDFInfo
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- CN210690449U CN210690449U CN201921070686.6U CN201921070686U CN210690449U CN 210690449 U CN210690449 U CN 210690449U CN 201921070686 U CN201921070686 U CN 201921070686U CN 210690449 U CN210690449 U CN 210690449U
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- 238000003825 pressing Methods 0.000 claims abstract description 18
- 239000011324 bead Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 9
- 238000007639 printing Methods 0.000 claims description 9
- 230000031700 light absorption Effects 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 13
- 206010070834 Sensitisation Diseases 0.000 description 9
- 230000008313 sensitization Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model introduces a radiographic film information identification imager, which comprises a shell, a light source, a positioning baffle fixed rotating shaft, an auxiliary pressing plate rotating shaft, a black light absorbing plate, a light diffusing plate and an identification information paper tape; a light source window is arranged at the upper left position of the upper surface of the shell; the light source is a red light source; the positioning baffle is rotatably fixed on the upper surface of the shell through a positioning baffle fixing rotating shaft, and the rotating shaft penetrates through a rotating shaft hole of the auxiliary pressing plate, so that the auxiliary pressing plate is arranged above the upper surface of the shell. The radiographic film information identification imager is convenient and simple to operate, consumes extremely low manpower and material resources, greatly reduces the labor intensity of operating personnel, remarkably improves the working efficiency, and is beneficial to health, environment and construction cost.
Description
Technical Field
The utility model relates to a ray transillumination film information identification technology, in particular to a ray transillumination film information identification imager.
Background
The mark on the radiographic film is composed of an identification mark and a positioning mark according to the standard requirement of NB/T47013.2-2015 bearing equipment nondestructive testing, and the mark is generally composed of numbers, letters, symbols and the like made of lead (or other suitable heavy metals) with proper size.
The identification mark generally includes: the method comprises the following steps of owner project name, detection units, product numbers, butt welding joint numbers, part numbers, welding codes and transillumination dates. The transillumination after the repair should also have a repair mark, and the transillumination for enlarging the detection proportion should have an enlarged detection mark.
The positioning marks generally include a center mark and an overlap mark. The center mark indicates the center position of the transillumination site section and the direction of the segment number, generally indicated by a cross arrow "≠ →". The lap joint mark is a transillumination segmentation mark during continuous detection and can be represented by a symbol "↓" or other methods capable of displaying the lap joint condition.
The detection information-identification mark on the ray transillumination negative film has more contents and large information amount. In actual work, the number of type codes needed for expressing the complete information of one welding seam on one film is about 60 generally, and sometimes more; in particular, oil refining and chemical high-risk enterprises have stricter requirements on information on the ray transillumination negative film, so that the monitoring and management of the weld joints in future are facilitated. Identification content of the transillumination negative film: the method comprises the following steps that enterprise name abbreviations, detection unit abbreviations, pipeline numbers, pipe orifice specifications, welding seam numbers, welding job numbers, detection dates, extension numbers, repair numbers, material numbers, fixed port identifications, heat treatment identifications, supervision spot check welding seam identifications, welding seam information needs to be arranged and replaced according to project management requirements, the contents are not available, the contents are expressed, labor and time consumption for arranging welding seam information character codes are large, and the time spent by each negative film is 2-5 minutes on average under normal conditions; in the arranging process, the word sizes are required to be arranged orderly, the arranging sequence is required to be uniform, no wrong numbers, no number drop or arranging errors occur, and the like, otherwise, the work is required to be performed again, and the work is finished by a specially-assigned person, so that the work is complicated, time-consuming and labor-consuming even if the specially-assigned person is not used. Catch up with the weather of low temperature, high humidity and much dew, the viscosity of the adhesive plaster is greatly reduced, and the adhesive plaster needs to be burnt and roasted by fire and changed with one or a group of character sizes, which takes time especially. Even if special designed character number plates and character number clamps are arranged, the falling of the lead character number, the deflection of the character number plates, the welding of the character number and the like can be avoided. The manufacture of the number plate or the number clamp needs to be advanced by half an hour or one hour; therefore, in the current patch caused by poor quality of the radiographic negative, the ratio of the reasons for the problem of the negative character size is over 60 percent, thereby causing great waste on labor hour, labor and cost.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a radiographic film information identification imager, which does not need a special person to change the character number on the radiographic inspection site, thereby saving the labor cost and the material cost; the direct contact of people to lead metal is reduced, the labor intensity of operators is reduced, and the working efficiency is improved.
In order to realize the purpose of solving the technical problem, the utility model adopts the following technical scheme:
a radiographic negative film information identification imager comprises a shell, a light source, a positioning baffle fixing rotating shaft, an auxiliary pressing plate rotating shaft, a black light absorption plate, a light diffusion plate and an identification information paper tape;
wherein, a light source window is arranged at the upper left position of the upper surface of the shell and is a rectangular groove; the rear side edge is parallel to the upper surface;
the light source is a red light source and comprises a red LED lamp bead and a red incandescent lamp bead, the red LED lamp bead is arranged in the center of the inside of the imager, and the red incandescent lamp bead is arranged below the light source window;
a positioning baffle plate fixing rotating shaft is arranged at the upper left corner of the upper surface of the shell; the positioning baffle is rotatably fixed on the upper surface of the shell through a positioning baffle fixing rotating shaft, and the positioning baffle fixing rotating shaft is parallel to the rear side edge or the left side edge of the light source window according to working requirements; more specifically, the positioning baffle is a rectangular plate;
the auxiliary pressure plate rotating shaft is arranged at the left side position of the rear side edge of the upper surface of the shell, a rotating shaft hole is formed in the auxiliary pressure plate, and the rotating shaft penetrates through the rotating shaft hole of the auxiliary pressure plate, so that the auxiliary pressure plate is arranged above the upper surface of the shell; the setting height of the rotating shaft of the auxiliary pressure plate is such that when the auxiliary pressure plate is parallel to the upper surface, the distance between the lower surface of the auxiliary pressure plate and the upper surface of the shell can ensure that the film passes below the auxiliary pressure plate;
the front edge of the auxiliary pressing plate is provided with a black light absorption plate, and the auxiliary pressing plate is used for pressing and fixing the negative and preventing light from reflecting and refracting;
a light diffusion plate is arranged below the light source window, and the light diffusion plate is white opaque glass or white opaque organic glass; the light-diffusing plate is used for enabling light rays of the red LED lamp beads and the red incandescent lamp beads to be uniformly distributed to a certain degree and then projected onto the detection identification information paper slip, so that secondary light sensing is carried out on the primary light-sensing negative film; thus, the numbers on the identification information paper strip form a latent image on the negative film;
the identification information paper tape is a printing paper tape for recording information by carbon powder and is arranged at the light source window.
Specifically, the identification information paper tape is a printing paper tape of white-background black characters printed by a laser printer.
Specifically, the upper surface of the light-diffusing plate and the upper surface of the shell have a certain height difference. Thus, the height difference is used to place the test information strip on the light-diffusing plate.
Specifically, the black light absorption plate arranged at the front edge of the auxiliary pressure plate is rectangular black sponge or black flannelette.
The auxiliary pressing plate of the utility model is used for avoiding direct contact between fingers and the negative plate so as to avoid negative plate quality defects caused by leaving fingerprints on the negative plate. The front edge of the auxiliary pressure plate is provided with a black sponge which can absorb light, and the black sponge can prevent the light from scattering and refracting, thereby protecting the other parts of the negative from unnecessary sensitization.
Specifically, the imager has two power utilization modes, wherein one power utilization mode is two-phase 220V alternating current, and the other power utilization mode is 9V direct current; the alternating current power supply manually controls the output time of the light source; the direct current power supply sets the length of the output time of the light source through a timing circuit;
more specifically, the 9v DC power supply device is connected to the red incandescent lamp bead through a timing circuit and a switch button.
More specifically, the switch button enables the timing circuit to be powered on, the timing circuit utilizes the timer, the resistor and the capacitor to form a charging and discharging circuit, the two comparators are used for detecting the voltage on the capacitor so as to determine the level of the output level and the on-off state of the discharge switch tube, timing is carried out, and the red incandescent lamp bead is communicated and controlled to emit light for a long time.
More specifically, a positioning bolt is arranged at the position of the upper surface of the shell, and the positioning bolt is used for positioning the positioning baffle plate at the position of 90 degrees above and 90 degrees below. This ensures that the negative is relatively horizontal or vertical in its disposition at the light source window.
When the device is used, the printing information which is consistent with the size of a light source window is set on a computer, and the printing information and a carbon powder printer are printed into an identification information paper tape with white background and black characters; cutting the identification information paper tape into a specified size according to the template; the cut identification information paper tape corresponds to the negative film, then the identification information paper tape is placed on the upper surface of a light-diffusing plate at the light source window of the instrument, the exposed negative film is taken out of the cassette, the edge of the negative film is pressed on the light source window, the negative film is subjected to secondary sensitization for 1-3 seconds, the negative film subjected to secondary sensitization is subjected to normal procedures of development, stop-shooting, fixation, water washing and drying, and the detection information of the welding line is completely, clearly and permanently displayed on the negative film.
The design idea of the technical scheme is as follows:
1) performing secondary sensitization on the film after the ray sensitization by utilizing the sensitization characteristic of the film to enable the information of the welding seam to be expressed to be displayed on the transillumination film;
2) in order to ensure the use effect of the imager, the controllability of red light is superior to that of white light, and a light source of the imager is selected as a red light source;
3) the imager has two power utilization forms, wherein one power utilization form is two-phase 220V alternating current, and the other power utilization form is 9V direct current. The alternating current power supply manually controls the output time of the light source; the direct current power supply controls the length of the output time of the set light source for the electronic element.
4) The imager has two kinds of luminous bodies, namely a red LED lamp bead and a red incandescent lamp bead. The 220v alternating current power supply device utilizes a transformer to enable an LED lamp to directly receive electricity and emit light through a switch button. The 9v DC power supply device forms a timing circuit from microsecond to several or several tens of seconds through a switch button and a timer, so that the red incandescent lamp bead is powered and shines.
These technical solutions, including further improved technical solutions, can also be combined or combined with each other, thereby achieving better technical effects.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
the utility model provides a radiographic film information identification imager, which is an imager manufactured according to the actual situation of a radiographic inspection field, after the imager is used, a special person is not needed to change the number of characters in the film shooting field, and after a film is shot, the number of a pipeline and the number of a welded junction are recorded on a film cassette; therefore, each working day and each shift can directly save time by more than 1 to 2 hours, and nearly more than ten negative films can be shot;
the consumption of the Arabic numerals and English letters of the lead products is avoided, and certain cost expenditure is saved for enterprises; direct contact of people to lead metal is also reduced, so that the workers are prevented from being damaged by heavy metal;
in the evaluation link, the identification information paper tape can be directly stuck on the clip paper; therefore, copying of welding seam information by film evaluation personnel is reduced, and time guarantee is provided for quick giving of negative film evaluation results; the time for copying the information on each negative film is about 30 seconds generally, and a large amount of time can be saved for a detection station which evaluates more than 200 negative films every day;
the radiographic film information identification imager is convenient and simple to operate, consumes extremely low manpower and material resources, greatly reduces the labor intensity of operating personnel, remarkably improves the working efficiency, is beneficial to health, environment and construction cost, and has extremely high popularization value in the industry.
Drawings
Fig. 1 is a perspective view of a radiographic negative information marking imager.
Fig. 2 is a schematic plan view of the device layout of a radiographic negative information marking imager.
In the figure, 1-shell, 2-light source window, 3-positioning baffle, 4-positioning baffle fixed rotating shaft, 5-auxiliary pressure plate, 6-auxiliary pressure plate rotating shaft, 7-black light absorbing plate, 8-red LED lamp bead, 9-red incandescent lamp bead, 10-circuit board, 11-9V direct current battery, 12-alternating current transformer, 13-direct current indicator lamp, 14-direct current switch, 15-alternating current indicator lamp and 16-alternating current switch.
Detailed Description
The patent is further explained below with reference to the drawings. The scope of protection of the patent is not limited to the specific embodiments.
Example 1
As shown in fig. 1-2, the radiographic film information identification imager of the patent comprises a shell 1, a light source 2, a positioning baffle 3, a positioning baffle fixing rotating shaft 4, an auxiliary pressing plate 5, an auxiliary pressing plate rotating shaft 6, a black light absorption plate 7, a light diffusion plate and an identification information paper tape.
Wherein, a light source window 2 is arranged at the left upper position of the upper surface of the shell 1, and the light source window 2 is a rectangular groove; the rear side edge is parallel to the upper surface; the light source is red light source, including red LED lamp pearl 8, red incandescent lamp pearl 9, and red LED lamp pearl 8 sets up in the inside center of imager, and red incandescent lamp pearl 9 sets up the below at light source window 2.
A positioning baffle fixing rotating shaft 4 is arranged at the upper left corner of the upper surface of the shell 1; the positioning baffle 3 is rotatably fixed on the upper surface of the shell 1 through a positioning baffle fixing rotating shaft 4, and is parallel to the rear side edge or the left side edge of the light source window 2 through the positioning baffle fixing rotating shaft 4 according to the working requirement; the positioning baffle 3 is a rectangular plate; positioning bolts are provided at the upper surface of the housing 1, and the positioning bolts are used to position the positioning baffle 3 at positions 90 degrees above and 90 degrees below. This ensures that the negative is relatively horizontal or vertical in its disposition at the light source window 2.
The auxiliary pressure plate rotating shaft 6 is arranged at the left side position of the rear side edge of the upper surface of the shell 1, a rotating shaft hole is formed in the auxiliary pressure plate 5, and the rotating shaft penetrates through the rotating shaft hole of the auxiliary pressure plate 5, so that the auxiliary pressure plate 5 is arranged above the upper surface of the shell 1; the setting height of the auxiliary pressure plate rotating shaft 6 is such that when the auxiliary pressure plate 5 is parallel to the upper surface, the distance between the lower surface of the auxiliary pressure plate 5 and the upper surface of the shell 1 can ensure that the film passes below the auxiliary pressure plate 5; the front edge of the auxiliary pressing plate 5 is provided with a black light absorption plate 7 made of rectangular black sponge, and the auxiliary pressing plate 5 is used for pressing and fixing the negative and preventing light reflection and refraction.
A light diffusion plate is arranged below the light source window 2, and the light diffusion plate is white opaque glass or white opaque organic glass; the upper surface of the light-diffusing plate and the upper surface of the shell 1 have a certain height difference. Thus, the height difference is used to place the test information strip on the light-diffusing plate. The light-diffusing plate is used for enabling light rays of the red LED lamp beads 8 and the red incandescent lamp beads 9 to be uniformly distributed to a certain degree and then projected onto the detection identification information paper slip, so that secondary light sensing is carried out on the primary light-sensing negative film; thus, the numbers on the identification information paper strip form a latent image on the negative film; the identification information paper tape is a printing paper tape of white-background black characters printed by a laser printer and is arranged at the light source window 2.
The auxiliary pressing plate 5 of the patent is used for avoiding direct contact between fingers and the negative film so as to avoid negative film quality defects caused by leaving fingerprints on the negative film. The front edge of the auxiliary pressure plate 5 is provided with a black sponge which can absorb light rays and can prevent the light rays from scattering and refracting, thereby protecting the other parts of the negative from unnecessary sensitization.
The imager has two power utilization modes, one is two-phase 220V alternating current, and the other is 9V direct current; the alternating current power supply manually controls the output time of the light source 2; the direct current power supply sets the output time of the light source through the timing circuit. The 9v direct current power supply device is connected to the red incandescent lamp bead 9 through a timing circuit and a switch button. The switch button makes the timing circuit powered, the timing circuit utilizes the timer, the resistor and the capacitor to form a charging and discharging circuit, and two comparators are used for detecting the voltage on the capacitor so as to determine the level of the output level and the on-off of the discharging switch tube, perform timing and communicate and control the light-emitting time of the red incandescent lamp bead 9.
When in use, the computer is provided with printing information with the size consistent with that of the light source window 2, and the printing information and the carbon powder printer are printed into an identification information paper tape with white background and black characters; cutting the identification information paper tape into a specified size according to the template; the cut identification information paper tape corresponds to the negative film, then the identification information paper tape is placed on the upper surface of a light-diffusing plate at the position of a light source window 2 of the instrument, the exposed negative film is taken out of the cassette, the edge of the negative film is pressed on the light source window 2, the negative film is subjected to secondary sensitization for 1-3 seconds, the negative film subjected to secondary sensitization is subjected to normal procedures of development, stop-shadow, fixation, water washing and drying, and the detection information of the welding line is completely, clearly and permanently displayed on the negative film.
Claims (8)
1. A kind of ray transillumination negative film information label imager, its characteristic is: the device comprises a shell, a light source, a positioning baffle fixing rotating shaft, an auxiliary pressing plate rotating shaft, a black light absorption plate, a light diffusion plate and an identification information paper tape;
wherein, a light source window is arranged at the upper left position of the upper surface of the shell and is a rectangular groove; the rear side edge is parallel to the upper surface;
the light source is a red light source and comprises a red LED lamp bead and a red incandescent lamp bead, the red LED lamp bead is arranged in the center of the inside of the imager, and the red incandescent lamp bead is arranged below the light source window;
a positioning baffle plate fixing rotating shaft is arranged at the upper left corner of the upper surface of the shell; the positioning baffle is rotatably fixed on the upper surface of the shell through a positioning baffle fixing rotating shaft, and the positioning baffle fixing rotating shaft is parallel to the rear side edge or the left side edge of the light source window according to working requirements; the positioning baffle is a rectangular plate;
the auxiliary pressure plate rotating shaft is arranged at the left side position of the rear side edge of the upper surface of the shell, a rotating shaft hole is formed in the auxiliary pressure plate, and the rotating shaft penetrates through the rotating shaft hole of the auxiliary pressure plate, so that the auxiliary pressure plate is arranged above the upper surface of the shell; the setting height of the rotating shaft of the auxiliary pressure plate is such that when the auxiliary pressure plate is parallel to the upper surface, the distance between the lower surface of the auxiliary pressure plate and the upper surface of the shell can ensure that the film passes below the auxiliary pressure plate;
the front edge of the auxiliary pressing plate is provided with a black light absorption plate, and the auxiliary pressing plate is used for pressing and fixing the negative and preventing light from reflecting and refracting;
a light diffusion plate is arranged below the light source window, and the light diffusion plate is white opaque glass or white opaque organic glass; the light-diffusing plate is used for enabling light rays of the red LED lamp beads and the red incandescent lamp beads to be uniformly distributed to a certain degree and then projected onto the detection identification information paper slip, so that secondary light sensing is carried out on the primary light-sensing negative film; thus, the numbers on the identification information paper strip form a latent image on the negative film;
the identification information paper tape is a printing paper tape for recording information by carbon powder and is arranged at the light source window.
2. The radiographic film information identification imager of claim 1, wherein: the identification information paper tape is a printing paper tape of white-background black characters printed by a laser printer.
3. The radiographic film information identification imager of claim 1, wherein: the upper surface of the light-diffusing plate and the upper surface of the shell have a certain height difference.
4. The radiographic film information identification imager of claim 1, wherein: the black light absorption plate arranged at the front edge of the auxiliary pressure plate is rectangular black sponge or black flannelette.
5. The radiographic film information identification imager of claim 1, wherein: the imager has two power utilization modes, one is two-phase 220V alternating current, and the other is 9V direct current; the alternating current power supply manually controls the output time of the light source; the direct current power supply sets the output time of the light source through the timing circuit.
6. The radiographic film information identification imager of claim 5, wherein: the 9v direct-current power supply device is connected to a red incandescent lamp bead through a timing circuit and a switch button.
7. The radiographic film information identification imager of claim 6, wherein: the switch button makes the timing circuit powered, the timing circuit utilizes the timer, the resistor and the capacitor to form a charging and discharging circuit, and two comparators are used for detecting the voltage on the capacitor so as to determine the level of the output level and the on-off of the discharging switch tube, perform timing and communicate and control the light-emitting time of the red incandescent lamp bead.
8. The radiographic film information identification imager of claim 1, wherein: and positioning bolts are arranged on the upper surface of the shell and are used for positioning the positioning baffle at the positions of 90 degrees above and 90 degrees below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070686.6U CN210690449U (en) | 2019-07-10 | 2019-07-10 | Radiographic negative film information identification imager |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070686.6U CN210690449U (en) | 2019-07-10 | 2019-07-10 | Radiographic negative film information identification imager |
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| Publication Number | Publication Date |
|---|---|
| CN210690449U true CN210690449U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921070686.6U Expired - Fee Related CN210690449U (en) | 2019-07-10 | 2019-07-10 | Radiographic negative film information identification imager |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327582A (en) * | 2020-10-30 | 2021-02-05 | 中国核工业第五建设有限公司 | Marking device for forming marked image on radiographic film |
| CN112924333A (en) * | 2021-01-27 | 2021-06-08 | 云南电网有限责任公司电力科学研究院 | Multi-purpose device for hydrophobicity detection and hyperspectral image shooting of composite insulator |
| CN114152492A (en) * | 2021-12-15 | 2022-03-08 | 武汉三联特种技术股份有限公司 | Method for manufacturing sensitivity verification sheet for negative scanning instrument |
-
2019
- 2019-07-10 CN CN201921070686.6U patent/CN210690449U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327582A (en) * | 2020-10-30 | 2021-02-05 | 中国核工业第五建设有限公司 | Marking device for forming marked image on radiographic film |
| CN112924333A (en) * | 2021-01-27 | 2021-06-08 | 云南电网有限责任公司电力科学研究院 | Multi-purpose device for hydrophobicity detection and hyperspectral image shooting of composite insulator |
| CN114152492A (en) * | 2021-12-15 | 2022-03-08 | 武汉三联特种技术股份有限公司 | Method for manufacturing sensitivity verification sheet for negative scanning instrument |
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Granted publication date: 20200605 |