CN109490333A - A kind of industrial nondestructive testing X ray image plate laser scanner - Google Patents
A kind of industrial nondestructive testing X ray image plate laser scanner Download PDFInfo
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- CN109490333A CN109490333A CN201811259901.7A CN201811259901A CN109490333A CN 109490333 A CN109490333 A CN 109490333A CN 201811259901 A CN201811259901 A CN 201811259901A CN 109490333 A CN109490333 A CN 109490333A
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- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 230000005622 photoelectricity Effects 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 78
- 239000004065 semiconductor Substances 0.000 claims description 36
- 238000003825 pressing Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000013016 damping Methods 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 17
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 230000000750 progressive effect Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
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- 238000004021 metal welding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
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Abstract
The present invention provides a kind of industrial nondestructive testing X ray image plate laser scanner, comprising: laser constant-temperature beam-expanding collimation unit, laser scanning confocal unit, video signal receives and photoelectricity amplifying unit, analog-to-digital conversion and system operation control unit, Computer Image Processing unit and IP plate transmission unit.Industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention, conventional film is substituted with the IP plate that may be reused, no longer developed photographic film with developing fixing, but the X-ray image for reading the storage of IP plate is scanned with high-rate laser, IP plate after reading can be disappeared with visible light movie queen reuse, improve reading efficiency, saved resource, reduced costs, having reduced environmental pollution；Meanwhile keeping laser is steady temperature, effectively prevents the distorted signals as caused by temperature change.
Description
Technical field
The present embodiments relate to technical field of imaging, and in particular to a kind of industrial nondestructive testing X ray image plate laser
Scanner.
Background technique
It is all traditionally to be realized using photographic film, with glue in the non-destructive testing of industrial nondestructive testing such as metal welding seam
Equipment of the piece as record information.Generally tested object is placed in from the position 500~1000mm of x-ray apparatus, film
It is tightly attached to sample behind, allows radiation exposure reasonable time (a few minutes to dozens of minutes) to be exposed, the film after exposure
Developed in darkroom, be fixed, water Shen and drying.Dry egative film is placed on the display screen of viewbox and is observed, the bottom of according to
The blackness and image of piece judge type, the size and number of existing defects, then evaluate by current standard to defect
Classification.
It is imaged in China's industrial nondestructive testing using photographic film at present, is analog imaging, at high cost, low efficiency and pollution
Environment.
Summary of the invention
To solve to be imaged in prior art industrial nondestructive testing using photographic film, at high cost, low efficiency and pollution environment
The problem of, the embodiment of the present invention provides a kind of industrial nondestructive testing X ray image plate laser scanner.
The embodiment of the present invention provides a kind of industrial nondestructive testing X ray image plate laser scanner, comprising: laser constant-temperature expands
Beam collimation unit, laser scanning confocal unit, video signal receives and photoelectricity amplifying unit, analog-to-digital conversion and system operation control
Unit, Computer Image Processing unit and IP plate transmission unit；The laser constant-temperature beam-expanding collimation unit includes thermostatic control mould
Block and laser bundle-enlarging collimation device, for emitting the constant temperature laser for being expanded and being collimated processing；The laser scanning confocal unit packet
Galvanometer scanner, object lens and optical waveguide module are included, the galvanometer scanner swashs what the laser constant-temperature beam-expanding collimation unit projected
After light carries out vibration mirror reflected, the object lens is recycled to focus, form laser spot, handled and realize by the optical path of the optical waveguide module
Point-by-point progressive scan IP plate, thus inspires IP plate video signal；The video signal receives and photoelectricity amplifying unit includes light
Video signal collector, optical filter, photomultiplier tube and electron-amplifier are learned, for filtering to the IP plate image information
Wave, light amplification, photoelectric conversion and electronics enhanced processing；The analog-to-digital conversion and system operation control unit to through electronics for putting
The IP plate image information handled greatly carries out analog-to-digital conversion and carries out system operation control；The Computer Image Processing unit is used for
The IP plate image information after receiving analog-to-digital conversion simultaneously shows the two dimensional image of corresponding X-ray image；The IP plate transmission unit
Transmit the IP plate by laser scanning confocal unit optical waveguide module below, for the laser scanning confocal unit point by point by
Row scans the IP plate.
Optionally, the laser bundle-enlarging collimation device includes semiconductor laser, beam expanding lens and collimator；The semiconductor swashs
Light device for emitting laser, the beam expanding lens and collimator be used to expand by the laser of the semiconductor laser and
Collimation processing；The laser that the thermostatic control module is used to control the semiconductor laser keeps constant temperature；It is described
Thermostatic control module includes temperature controller, hygrosensor, heating device and radiator, and the hygrosensor is for monitoring institute
The real time temperature of the laser of semiconductor laser is stated, the temperature controller is used for according to the real time temperature and preset temperature control
It makes the heating device and is heated or controlled the radiator and carry out refrigeration processing, to guarantee the semiconductor laser
The laser of device transmitting is maintained at the preset temperature.
Optionally, the hygrosensor and the heating device are placed in the inside of the semiconductor laser, described
Radiator is placed in the outside of the semiconductor laser；The heating device includes adding thermal resistance, the radiator packet
Include radiator fan.
Optionally, the optical waveguide module includes three optical flat reflecting mirrors for being placed in predeterminated position, and the object lens are poly-
Defocused laser is after the reflection of three optical flat reflecting mirrors, with IP plate described in preset angle directive.
Optionally, the preset angle includes: the angle of the normal direction of laser and the IP plate in 0~30 degree；It is excellent
Select 5-20 degree；Most preferably 5-10 degree.
Optionally, the optical image signal collector is placed perpendicular to the IP plate, and its lower end is in scan line
In the heart at 0~10mm of identity distance IP plate；It is preferred that 2-8mm；Most preferably 2-5mm.
Optionally, the IP plate transmission unit includes driving motor, drive pulley, driving belt, using belt transmission
Mode at the uniform velocity transmits the IP plate being placed on the driving belt；The IP plate transmission unit further includes IP plate pressing plate, institute
The top that IP plate pressing plate is placed in the feed belt is stated, and there are gaps between the feed belt；When being placed in the biography
When the IP pressing plate on belt being sent to pass through from the gap, the IP plate pressing plate is realized for flattening to the IP plate
It is light-blocking.
Optionally, the IP plate transmission unit further includes belt damping and support construction, and the belt damping and support are tied
Structure includes belt adjusting seat and belt adjustment pad, and the belt adjusting seat passes through the belt tune that is placed in below feed belt
Whole backing plate supports feed belt, realizes belt damping.
Optionally, belt adjustment tetrafluoro plate is further provided between the belt adjustment pad and driving belt；It is described
Belt adjusts tetrafluoro plate and the IP plate pressing plate uses polytetrafluoroethylene material.
Optionally, to further include IP plate disappear shadow lamp the laser scanner into plate magazine, IP plate ejecting plate magazine and IP plate；It is described
IP plate enters from the IP plate into plate magazine, exports from the IP plate ejecting plate magazine；The IP plate disappears shadow lamp for scanning through
At IP plate carry out the shadow that disappears.
The laser scanner of video signal in industrial nondestructive testing X ray image plate provided in an embodiment of the present invention is used
The IP plate substitution conventional film that may be reused, is no longer developed photographic film with developing fixing, but is scanned and read with high-rate laser
The X-ray image of IP plate storage, the movie queen that disappears of the IP plate visible light after reading is reusable, improves reading efficiency, has saved money
Source reduces costs, reduces environmental pollution；Meanwhile keeping laser is steady temperature, effectively prevents being caused by temperature change
Distorted signals.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention；
Fig. 2 is that the IP plate transmission of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention is single
The belt damping of member and the front view of support construction；
Fig. 3 is the A-A left view sectional view of Fig. 2；
Fig. 4 be another embodiment of the present invention provides the structure of industrial nondestructive testing X ray image plate laser scanner show
It is intended to；
Fig. 5 is the upper layer optical system of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention
The mounting structure schematic diagram of system and control circuit；
Fig. 6 is lower layer's power train of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention
The mounting structure schematic diagram of system and Switching Power Supply；
Fig. 7 is the complete machine element knot of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention
The structure location drawing；
1: laser constant-temperature beam-expanding collimation unit；2: laser scanning confocal unit；3: video signal receives and photoelectricity amplifying unit；
4: analog-to-digital conversion and system run control unit；5: Computer Image Processing unit；6: printer；
7:IP plate transmission unit；8:IP plate；9:IP plate disappears shadow lamp；
10:IP plate is into plate magazine；11:IP plate ejecting plate magazine；12: power supply and electric system；
1-1: laser bundle-enlarging collimation device；1-2: temperature controller；1-3: hygrosensor；
1-4: heating device；1-5: radiator fan；2-1: galvanometer scanner；
2-2:F θ object lens；2-3: the first optical flat reflecting mirror；2-4: the second optical flat reflecting mirror；
2-5: third optical flat reflecting mirror；3-1: optical image signal collector；3-2: optical filter；
3-3: photomultiplier tube；3-4: electron-amplifier；5-1: host computer；
5-2: digital imaging processing software；5-3: high-clear display；7-1: driving motor and retarder；
7-2: drive pulley；7-3: driving belt；7-4:IP plate pressing plate；
7-5: adjustable straps damping and support construction.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention.
As shown in Figure 1, the laser scanner includes laser constant-temperature beam-expanding collimation unit (1), laser scanning confocal unit (2), image
Signal receives and photoelectricity amplifying unit (3), analog-to-digital conversion and system run control unit (4), Computer Image Processing unit (5)
And IP plate transmission unit (7)；
The laser constant-temperature beam-expanding collimation unit (1) includes thermostatic control module and laser bundle-enlarging collimation device, for emitting
Expanded and collimated the constant temperature laser of processing；
The laser constant-temperature beam-expanding collimation unit (1) includes thermostatic control module and laser bundle-enlarging collimation device, the laser
Beam-expanding collimation device includes laser emitter, expand device and collimator apparatus, and the laser emitter is for emitting laser, the expansion
Bundle device is used to expand the diameter of parallel input laser to biggish collimated output beam, and the collimator apparatus is used to swash to described
Light beam carries out collimation processing.
The power of semiconductor laser can vary with temperature, this will affect the distorted signals of stimulated luminescence.The constant temperature control
The laser that molding block is used to control the semiconductor laser keeps constant temperature, effectively prevents being caused by temperature change
Distorted signals.
Therefore, what laser constant-temperature beam-expanding collimation unit (1) issued is the constant temperature laser for being expanded and being collimated processing.
The laser scanning confocal unit (2) includes galvanometer scanner, object lens and optical waveguide module, and the galvanometer scanner will
After the laser that the laser constant-temperature beam-expanding collimation unit projects carries out vibration mirror reflected, the object lens is recycled to focus, forms laser
Spot realizes point-by-point progressive scan IP plate by the optical path processing of the optical waveguide module, thus inspires IP plate video signal；It is described
Object lens can be F θ object lens.The IP plate refers to X ray image plate.
The laser scanning confocal unit (2) includes galvanometer scanner, object lens and optical waveguide module, and the galvanometer scanner is
An a kind of high-precision, high speed servo-control system by driving plate and high speed swinging motor form, driving plate drive galvanometer
When swing, so that laser scanning can be realized, the bright line that a length is equal to IP plate overall width is scanned out on IP plate.Galvanometer scanner
The laser of output after object lens focus, formed laser spot, through the optical waveguide module optical path processing project on IP plate, it can be achieved that
IP plate is excited line by line point by point, inspires IP plate video signal.
The video signal receives and photoelectricity amplifying unit (3) include optical image signal collector, optical filter, light
Electric multiplier tube and electron-amplifier, for being filtered, at light amplification, photoelectric conversion and electronics amplification to the IP plate image information
Reason；
The superlaser (such as 650nm) of focusing, is incident on the IP plate through x-ray irradiation, and deposited image is excited in IP plate
Hair, launches ultraviolet light (such as 390nm), is collected by optical image signal collector (abbreviation optical waveguide), filters through optical filter
Except the photocathode for traveling to photomultiplier tube after 650nm light, completes light amplification and photoelectric conversion output simulates electric signal, then through electricity
Sub- amplifier exports analog electrical signal after carrying out electronics amplification.
The analog-to-digital conversion and system operation control unit (4) be used for the IP plate image information through electronics enhanced processing into
Row analog-to-digital conversion and the system operation of progress control；
The analog-to-digital conversion and system operation control unit (4) are used for the IP plate image information through electronics enhanced processing
(analog electrical signal) carries out analog-to-digital conversion, so that Computer Image Processing unit (5) is further processed.The analog-to-digital conversion and it is
System operation control unit (4) is also used to realize the overall operation control of system, such as controls the scan position of laser and the fortune of IP plate
It moves.
The Computer Image Processing unit (5) is for the IP plate image information after receiving analog-to-digital conversion and display pair
Answer the two dimensional image of X-ray image；
The Computer Image Processing unit (5) may include host computer, digital imaging processing software and display；Institute
It states digital imaging processing software to run on the host computer, to the received warp of Computer Image Processing unit (5) institute
Obtained IP plate image information after whole plate scanning is handled, and shows the X-Y scheme of corresponding X-ray image over the display
Picture.
The IP plate transmission unit (7) is transmitted the IP plate and is passed through below the optical waveguide module of laser scanning confocal unit (2),
So that the laser scanning confocal unit (2) progressively scans the IP plate point by point.
The IP plate transmission unit (7) is transmitted the IP plate and is passed through below the optical waveguide module of laser scanning confocal unit (2),
The IP plate can be at the uniform velocity transmitted by using the mode that belt is driven, compared with using lead screw guide rails mode, due to not needing
Backhaul not only saves the time, also reduces the length of equipment, has saved volume.Described in IP plate transmission unit (7) transmission
IP plate realizes that the laser scanning confocal unit (2) is point-by-point line by line by the optical waveguide module lower section of laser scanning confocal unit (2)
Scanning.
Industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention, with what be may be reused
IP plate substitutes conventional film, is no longer developed photographic film with developing fixing, but the X-ray shadow for reading the storage of IP plate is scanned with high-rate laser
Picture, the IP plate after reading can be disappeared with visible light movie queen reuse, improve reading efficiency, saved resource, reduced costs, having subtracted
Environmental pollution is lacked；Meanwhile keeping laser is steady temperature, effectively prevents the distorted signals as caused by temperature change.
Further, based on the above embodiment, the laser bundle-enlarging collimation device includes semiconductor laser, beam expanding lens and standard
Straight instrument；The semiconductor laser is for emitting laser, the beam expanding lens and collimator for sending out the semiconductor laser
The laser penetrated is expanded and collimation processing；The thermostatic control module is used to control the laser of the semiconductor laser
Keep constant temperature；The thermostatic control module includes temperature controller, hygrosensor, heating device and radiator, the temperature
Degree detector is used to monitor the real time temperature of the laser of the semiconductor laser, and the temperature controller is used for according to the reality
Shi Wendu and the preset temperature control heating device are heated or are controlled the radiator and carry out refrigeration processing, with
Guarantee that the laser of the semiconductor laser is maintained at the preset temperature.
The laser bundle-enlarging collimation device includes semiconductor laser, beam expanding lens and collimator；The semiconductor laser is used
In emitting laser, the beam expanding lens and collimator are used to be expanded the laser of semiconductor laser and collimation is handled；
That is, the laser emitter is semiconductor laser, the expand device is beam expanding lens, and the collimator apparatus is collimator.
The laser that the thermostatic control module is used to control the semiconductor laser keeps constant temperature, the perseverance
Determining temperature is preset temperature.The thermostatic control module includes temperature controller, hygrosensor, heating device and radiator, institute
State the real time temperature of laser of the hygrosensor for monitoring the semiconductor laser, and the real-time temperature that monitoring is obtained
Degree is sent to temperature controller；The temperature controller, which is used to control the heating device according to the real time temperature and preset temperature, to be added
It is heat-treated or controls the radiator and carry out refrigeration processing；When real time temperature is higher than preset temperature, described in temperature controller control
Radiator carries out refrigeration processing, until the real time temperature that hygrosensor monitors is equal with preset temperature；Work as real time temperature
When lower than preset temperature, temperature controller controls the heating device and is heated, until hygrosensor monitor it is real-time
Temperature is equal with preset temperature, to guarantee that the laser of the semiconductor laser is maintained at the preset temperature.
On the basis of the above embodiments, the embodiment of the present invention is by being arranged by temperature controller, hygrosensor, heating device
The thermostatic control module constituted with radiator, maintains laser and is in steady temperature, effectively prevent being caused by temperature change
Distorted signals.
Further, based on the above embodiment, the hygrosensor and the heating device are placed in the semiconductor
The inside of laser, the radiator are placed in the outside of the semiconductor laser；The heating device includes heating electricity
Resistance, the radiator includes radiator fan.
The hygrosensor for example temperature sensor, the heating device for example adding thermal resistance, by the temperature sensing
Device and the heating device are placed in the inside of the semiconductor laser, are not only conducive to realize in structure, but also be conducive to reality
The quick detection and quickly heating of existing temperature, improve temperature monitoring efficiency and heating efficiency.The radiator can be heat dissipation
Fan, the radiator are placed in the outside of the semiconductor laser, are not only conducive to realize in structure, while convenient for heat dissipation
Processing.
On the basis of the above embodiments, hygrosensor and heating device are placed in semiconductor and swashed by the embodiment of the present invention
Radiator is placed in the outside of semiconductor laser by the inside of light device, is not only conducive to realize in structure, but also can significantly mention
The efficiency of high-temperature detection, heating and refrigeration.
Further, based on the above embodiment, the optical waveguide module includes three optical flats for being placed in predeterminated position
Reflecting mirror, the laser after the object lens focusing are penetrated after the reflection of three optical flat reflecting mirrors with preset angle
To the IP plate.
The optical waveguide module includes three optical flat reflecting mirrors for being placed in predeterminated position, is realized and is swashed by mirror-reflection
The optical path of light is conducted.The placed angle of three optical flat reflecting mirrors determines the incidence angle of the laser signal of directive IP plate.Rationally
The position for placing optical flat reflecting mirror, makes after the reflection of three optical flat reflecting mirrors, and the laser after object lens focusing is with pre-
If angle directive IP plate namely the normal direction of laser light incident direction and IP plate be in preset angle.
On the basis of the above embodiments, the embodiment of the present invention is by realizing that optical path passes using three optical flat reflecting mirrors
It leads, easily realizes the angle control of IP plate incident laser.
Further, based on the above embodiment, the preset angle includes: the normal direction of laser Yu the IP plate
Angle is in 0~30 degree；It is preferred that 5-20 degree；Most preferably 5-10 degree.
The predetermined angle of the incidence angle of IP plate incident laser can be 0~30 degree namely the normal of laser and the IP plate
The angle in direction is in 0~30 degree.The preferred 5-20 degree of angle of the normal direction of laser and the IP plate, most preferably 5-10 degree.When
When incidence angle (angle of the normal direction of laser and the IP plate) is 0 degree, laser is impinged perpendicularly on IP plate, while laser goes out
IP plate video signal vertically project, the signal strength of IP plate normal direction is most strong；Therefore, optical image signal collector can be with
Collect IP video signal in the top for being placed in IP plate.
But the optical image signal collector of the top due to being placed in IP plate occupies certain spatial position, it is thus possible to
It will appear light-blocking phenomenon, therefore, the incidence angle of directive IP plate is not easily accomplished vertical incidence, can enable laser and the IP at this time
The angle of the normal direction of plate is in 0~30 degree, had both avoided light-blocking, and had in turn ensured effective reception of IP video signal.For example, swashing
The angle of the normal direction of light and the IP plate can be 0 degree, 5 degree, 10 degree, 20 degree, 22 degree, 25 degree, 30 degree etc..
On the basis of the above embodiments, the embodiment of the present invention is in 0 by enabling the angle of the normal direction of laser and IP plate
It~30 degree, had both avoided light-blocking, and had in turn ensured effective reception of IP video signal.
Further, based on the above embodiment, the optical image signal collector is placed perpendicular to the IP plate, and its
Lower end is on the center of scan line at 0~10mm of identity distance IP plate；It is preferred that 2-8mm；Most preferably 2-5mm.
The optical image signal collector is placed perpendicular to the IP plate, and its lower end identity distance on the center of scan line
At IP plate about 0~10mm, preferably 2-8mm, most preferably 2-5mm.The upper termination optically filtering of the optical image signal collector
Device and photomultiplier tube entrance window, sufficiently improve optical image signal collection efficiency in this way.
Distance of the optical image signal collector lower end away from IP plate should mutually be fitted with laser and the angle of the normal direction of IP plate
It answers, when angle is smaller, distance of the optical image signal collector lower end away from IP plate can suitably become smaller；When angle is larger,
Distance of the optical image signal collector lower end away from IP plate can suitably become larger.
For example, when the angle of laser and the normal direction of the IP plate is 10 degree, optical image signal collector lower end
Distance away from IP plate can be 3.2mm；When the angle of laser and the normal direction of the IP plate is 22 degree, optical image signal
Distance of the collector lower end away from IP plate can be 7mm；When the angle of the normal direction of laser and the IP plate is 25 degree, optics shadow
Distance as signal collector lower end away from IP plate can be 8mm；When the angle of the normal direction of laser and the IP plate is 30 degree,
Distance of the optical image signal collector lower end away from IP plate can be 9.6mm etc..
On the basis of the above embodiments, optical image signal collector is placed perpendicular to IP plate in the embodiment of the present invention,
And optical image signal collection efficiency at 0~10mm of identity distance IP plate, is sufficiently improved on the center of scan line in its lower end；Improve noise
Than realizing the high sensitivity and high-resolution of image.
Further, based on the above embodiment, the IP plate transmission unit (7) includes driving motor, drive pulley, transmission
Belt at the uniform velocity transmits the IP plate being placed on the driving belt by the way of belt transmission；The IP plate transmission is single
First (7) further include IP plate pressing plate, and the IP plate pressing plate is placed in the top of the feed belt, and stays between the feed belt
It has the gap；When the IP pressing plate being placed on the feed belt passes through from the gap, the IP plate pressing plate is used for institute
It states IP plate to be flattened, and realizes light-blocking.
The IP plate transmission unit (7) at the uniform velocity transmits the IP plate by the way of belt transmission, so that the laser is swept
It retouches focusing unit and progressively scans the IP plate point by point.The IP plate transmission unit (7) includes driving motor, drive pulley, transmission
Belt at the uniform velocity transmits the IP plate being placed on the driving belt by the way of belt transmission.The IP plate transmission is single
First (7) may also include retarder, for adjusting the movement velocity of driving belt.
When carrying out industrial nondestructive testing, IP plate needs to be pasted on the surface of measured workpiece and deposits to obtain X ray image
It is stored in IP plate, therefore IP plate will appear bending deformation.And when scanning the video signal for reading IP plate with laser scanner, if
IP plate out-of-flatness, then will affect the reading of video signal.Therefore, the IP plate transmission unit (7) further includes IP plate pressing plate, described
IP plate pressing plate is placed in the top of the feed belt, and there are gaps between the feed belt；When being placed in the transmission
When IP pressing plate on belt passes through from the gap, the IP plate pressing plate is for flattening the IP plate.The IP plate
Pressing plate can be polyfluortetraethylene plate, and polyfluortetraethylene plate can prevent from polluting IP plate.Meanwhile the IP plate pressing plate is placed in
The top of IP plate, can carry out light-blocking, prevent illumination influence caused by IP plate.Therefore, the IP plate pressing plate is also referred to as light-blocking
Plate.
On the basis of the above embodiments, the embodiment of the present invention is realized by the way that IP plate pressing plate is arranged in IP plate transmission unit
The IP plate of bending deformation is flattened, the reading of video signal is facilitated, avoids reading error.
Further, based on the above embodiment, the IP plate transmission unit (7) further includes that the IP plate transmission unit also wraps
Include belt damping and support construction, the belt damping and support construction include belt adjusting seat and belt adjustment pad, described
Belt adjusting seat supports feed belt by the belt adjustment pad being placed in below feed belt, realizes belt damping.
Driving belt shakes the vibration that will drive the IP plate being placed on it, to influence the accurate of IP plate image information reading
Property.To realize damping, support construction can be used and be supported driving belt, damping effect can be played.The IP plate transmission is single
First (7) include belt damping and support construction, and the belt damping and support construction include belt adjusting seat and belt adjusting pad
Plate, the belt adjustment pad are placed in the lower section of feed belt, and area can be roughly the same with the area of feed belt, institute
It states belt adjustment pad to be supported by the belt adjusting seat, the support to feed belt is realized, to realize that belt subtracts
Shake.
The belt adjusting seat can be symmetrically disposed on the middle part of IP plate transmission unit (7) belt direction of transfer.The skin
Band adjusting seat can be I-shape construction component.Adjustable structure can be set into the belt damping and support construction, leads to
The position for finely tuning the belt damping and support construction is crossed, the position of driving belt and the position of IP plate can be finely tuned.
On the basis of the above embodiments, the embodiment of the present invention passes through setting belt damping and support construction support transmission skin
Band improves the recognition precision of IP plate image information to realize belt damping.
Further, based on the above embodiment, skin is further provided between the belt adjustment pad and driving belt
Band adjustment tetrafluoro plate；The belt adjustment tetrafluoro plate and the IP plate pressing plate use polytetrafluoroethylene material.
When being in contact due to common material belt adjustment pad and driving belt, frictional electricity can be generated, thus to placement
It is impacted in the photoelectric properties of the IP plate on driving belt, and then influences the image information that IP plate is stored.To avoid to IP
Plate image information impacts, and further, is further provided with belt tune between the belt adjustment pad and driving belt
Whole tetrafluoro plate, the belt adjustment tetrafluoro plate is polytetrafluoroethylene material, and insulating properties is strong, it is not easy to IP plate impacted, from
Recognition result without will affect scanner.
Based on same reason, polytetrafluoroethylene material is can also be used in the IP plate pressing plate.
On the basis of the above embodiments, the embodiment of the present invention between belt adjustment pad and driving belt by being arranged
Polyfluortetraethylene plate reduces the influence to rub to IP plate, to further improve the recognition precision of IP plate image information.
Fig. 2 is that the IP plate transmission of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention is single
The belt damping of member and the front view of support construction；Fig. 3 is the A-A left view sectional view of Fig. 2.As shown in Figure 2 and Figure 3, the IP plate
Pressing plate includes preceding tetrafluoro light barrier and rear tetrafluoro light barrier, is respectively placed in the two sides of scanning center's line, plays light-blocking and IP plate pressure
Flat effect；The belt adjustment pad and belt that belt adjusting seat is placed in below feed belt by successively support adjust tetrafluoro
Plate realizes support and damping to driving belt；Pressing plate, IP tetrafluoro baffle and IP backing plate can be used collectively as IP plate block
In preventing from being placed in moving forward and backward for the IP plate on driving belt.
Further, based on the above embodiment, the laser scanner further includes IP plate into plate magazine, IP plate ejecting plate magazine
And IP plate disappears shadow lamp；The IP plate enters from the IP plate into plate magazine, exports from the IP plate ejecting plate magazine；The IP plate disappears
Shadow lamp is used to carry out the shadow that disappears to the IP plate that scanning is completed.
The laser scanner further includes IP plate to disappear shadow lamp into plate magazine, IP plate ejecting plate magazine and IP plate；The IP plate from
The IP plate enters into plate magazine, and the IP plate after laser scanning continues at the uniform velocity forward, to disappear through the IP plate shadow lamp that disappears
Movie queen exports from the IP plate ejecting plate magazine.Through the shadow lamp that disappearing disappear movie queen IP plate it is reusable.
To avoid illumination influence caused by IP plate, IP plate enters from IP plate into plate magazine, exports from IP plate ejecting plate magazine.
For IP plate when transmitting on driving belt, the top of feed belt also needs setting light barrier, to further prevent illumination to make IP plate
At influence.
On the basis of the above embodiments, the embodiment of the present invention by entering IP plate from IP plate into plate magazine, IP plate
The output of ejecting plate magazine, illumination impacts IP plate during avoiding disengaging feed belt；To the IP plate benefit after the completion of scanning
Disappear shadow, it can be achieved that the reuse of IP plate, improves utilization rate with the shadow lamp that disappears.
Fig. 4 be another embodiment of the present invention provides the structure of industrial nondestructive testing X ray image plate laser scanner show
It is intended to.As shown in figure 4, the laser in hygrosensor (1-3) and heating device (1-4) embedment laser bundle-enlarging collimation device (1-1)
Device, the disposed outside radiator fan (1-5) of laser bundle-enlarging collimation device (1-1), under the control of temperature controller (1-2), control heating
Device (1-4) heating or radiator fan (1-5) refrigeration, so that the laser of laser transmitting is maintained at set temperature, temperature change
It is can be controlled in ± 0.1 degree, the constant of laser power is reached with this.By expanding, after collimation processing, laser bundle-enlarging collimation device (1-
1) output is expanded and is collimated the constant temperature laser of processing.
The constant temperature laser for being expanded and being collimated processing of laser bundle-enlarging collimation device (1-1) output, through galvanometer scanner (2-1)
After F θ object lens (2-2) processing, output can be used for the laser spot scanned, using the first optical flat reflecting mirror (2-3), second
The optical path conduction for the optical flat reflecting system that optical flat reflecting mirror (2-4) and third optical flat reflecting mirror (2-5) are constituted
Afterwards, with 25 degree of angle directive IP plates (8).
Optical image signal collector (3-1) is placed perpendicular to IP plate (8), lower end identity distance IP on the center of scan line
At plate (8) about 8mm, upper termination optical filter (3-2) and photomultiplier tube (3-3) entrance window sufficiently improve shadow in this way
As signal collection efficiency.Photomultiplier tube (3-3) completes light amplification and photoelectric conversion output simulates electric signal, then amplifies through electronics
The electronics of device (3-4) amplifies, and after the A/D analog-to-digital conversion and data acquisition of analog-to-digital conversion and system operation control unit, is input to
Computer Image Processing unit.
Computer Image Processing unit includes host computer (5-1), digital imaging processing software (5-2) and high-clear display
(5-3), digital imaging processing software (5-2) are run on host computer (5-1), as whole plate Sao Miao Jie Bouquet, at digital picture
After managing software (5-2) processing, the two dimensional image of X-ray image is just shown on high-clear display (5-3).Laser scanner may be used also
Including printer (6), the two dimensional image of X-ray image is printed out.
IP plate conveyer system realizes the point-by-point progressive scan of IP plate (8) at the uniform velocity transmitting IP plate.IP plate conveyer system packet
It includes driving motor and retarder (7-1), drive pulley (7-2), driving belt (7-3), IP plate pressing plate (7-4) and adjustable straps subtracts
Shake and support construction (7-5).Driving motor and retarder (7-1), drive pulley (7-2), driving belt (7-3) realize IP plate
Uniform motion.IP plate pressing plate (7-4) be used for IP plate (8) carry out flatten and it is light-blocking.Adjustable straps damping and support construction (7-5)
It is used to support IP plate (8), realizes damping.
IP plate (8) enters from IP plate into plate magazine (10), exports from IP plate ejecting plate magazine (11)；IP plate disappear shadow lamp (9) use
The shadow that disappears is carried out in the IP plate (8) completed to scanning.
Power supply and electric system (12) are for realizing power supply and electrical equipment control.
Laser scanning is realized using galvanometer in the embodiment of the present invention, tilting mirror (4 face mirrors, six face mirrors etc.) can also be used instead and come in fact
Existing laser scanning, but when the tower difference of only polygonal mirror is zero, it can accomplish that scan line is equidistant.
The embodiment of the present invention provides a kind of laser scanning for reading the video signal in industrial nondestructive testing X ray image plate
Instrument substitutes conventional film with the IP plate that may be reused, is no longer developed photographic film with developing fixing, but scanned with high-rate laser
The X-ray image of IP plate storage is read, the movie queen that disappears of the IP plate visible light after reading is reusable, improves reading efficiency, saves
Resource reduces costs, reduces environmental pollution；Meanwhile keeping laser is steady temperature, is effectively prevented by temperature change
Caused by distorted signals；Laser is enabled to be incident on IP plate at an appropriate angle, optical image signal collector and the setting of IP plate are appropriate
Spacing, had both avoided light-blocking, in turn ensured effective reception of IP video signal；The IP plate pressing to bending deformation is realized, just
The benefit reading of video signal, avoids reading error.
Fig. 5 is the upper layer optical system of industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention
The mounting structure schematic diagram of system and control circuit；Fig. 6 is that industrial nondestructive testing X ray image plate provided in an embodiment of the present invention swashs
Lower layer's transmission system of photoscanner and the mounting structure schematic diagram of Switching Power Supply；Fig. 7 is industry provided in an embodiment of the present invention
The complete machine component structure location drawing of non-destructive testing X ray image plate laser scanner.
It is as follows to the operation instruction of laser scanner provided in an embodiment of the present invention in conjunction with Fig. 5, Fig. 6 and Fig. 7:
The x-ray imaging for obtaining the IP plate of workpiece first, is usually attached to workpiece position to be checked side for IP plate, then
X-ray exposure irradiation is carried out to workpiece position from the other side, forms image on IP plate.
The hand-held IP plate for being stored with analog image of operator, open IP plate into plate magazine front vertical wall wicket, by IP plate
It is sent into inside scanner on conveyer system belt, IP plate presses certain speed horizontal feed with belt, reaches immediately below optical waveguide
When, the laser beam flying IP plate of optical scanning system converts fluorescence for the analog image stored in IP plate and imports optical waveguide, warp
Photomultiplier tube and signal amplification are converted into electric signal, are then read and are converted into digital signal.Digital signal then can be by
Feed-in computer and digital processing system, ultimately form digitized video.IP plate after scanning continues along feed belt at the uniform velocity forward,
The shadow lamp that the disappeared shadow that disappears from wall wicket after IP plate ejecting plate magazine removes scanner, and scanning process terminates.
Industrial nondestructive testing X ray image plate laser scanner provided in an embodiment of the present invention is welded for metal weldment
Seam defect inspection.Replace film with the IP plate that may be reused, the image store after X-ray irradiation weldment is on IP plate.Scanning
Instrument laser (spot size is 25 microns, 50 microns, 100 microns it is optional) point-by-point progressive scan IP plate, excited by laser scanning
Weldment image information out is collected by optical waveguide, after optically filtering and photoelectricity amplification (100,000 times of grades), electronics amplification, simulation electricity
Signal passes through A/D analog-to-digital conversion, realizes the two dimensional image of pcs signal acquisition and displaying digitized.It, can be right using computer function
Image is amplified, is reduced, cutting out, writing test report, and file printout and transmission etc. can be completed by computer.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as electronic equipment described above are only schematical, wherein it is described as illustrated by the separation member
Unit may or may not be physically separated, and component shown as a unit may or may not be object
Manage unit, it can it is in one place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying wound
In the case where the labour for the property made, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that an electronic equipment (can be personal computer, server or the network equipment etc.) executes each embodiment
Or method described in certain parts of embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of industrial nondestructive testing X ray image plate laser scanner characterized by comprising laser constant-temperature beam-expanding collimation
Unit, laser scanning confocal unit, video signal reception and photoelectricity amplifying unit, analog-to-digital conversion and system operation control unit,
Computer Image Processing unit and IP plate transmission unit；
The laser constant-temperature beam-expanding collimation unit includes thermostatic control module and laser bundle-enlarging collimation device, expanded for emitting and
Collimate the constant temperature laser of processing；
The laser scanning confocal unit includes galvanometer scanner, object lens and optical waveguide module, and the galvanometer scanner swashs described
After the laser that light constant temperature beam-expanding collimation unit projects carries out vibration mirror reflected, the object lens is recycled to focus, form laser spot, passed through
Point-by-point progressive scan IP plate is realized in the optical path processing of the optical waveguide module, thus inspires IP plate video signal；
The video signal receives and photoelectricity amplifying unit includes optical image signal collector, optical filter, photomultiplier transit
Pipe and electron-amplifier, for being filtered to the IP plate image information, light amplification, photoelectric conversion and electronics enhanced processing；
The analog-to-digital conversion and system operation control unit are used to carry out modulus to the IP plate image information through electronics enhanced processing
Conversion and the system operation of progress control；
The Computer Image Processing unit is for the IP plate image information after receiving analog-to-digital conversion and shows corresponding X-ray shadow
The two dimensional image of picture；
The IP plate transmission unit transmits the IP plate by the optical waveguide module lower section of laser scanning confocal unit, swashs for described
Optical scanning focusing unit progressively scans the IP plate point by point.
2. laser scanner according to claim 1, which is characterized in that the laser bundle-enlarging collimation device includes that semiconductor swashs
Light device, beam expanding lens and collimator；For the semiconductor laser for emitting laser, the beam expanding lens and collimator are used for will be described
The laser of semiconductor laser is expanded and collimation processing；
The laser that the thermostatic control module is used to control the semiconductor laser keeps constant temperature；The constant temperature control
Molding block includes temperature controller, hygrosensor, heating device and radiator, and the hygrosensor described is partly led for monitoring
The real time temperature of the laser of body laser transmitting, the temperature controller are used for according to the real time temperature and preset temperature control
Heating device is heated or is controlled the radiator and carries out refrigeration processing, to guarantee the semiconductor laser
Laser be maintained at the preset temperature.
3. laser scanner according to claim 2, which is characterized in that the hygrosensor and the heating device are put
It is placed in the inside of the semiconductor laser, the radiator is placed in the outside of the semiconductor laser；
The heating device includes adding thermal resistance, and the radiator includes radiator fan.
4. laser scanner according to claim 1, which is characterized in that the optical waveguide module includes being placed in predeterminated position
Three optical flat reflecting mirrors, the object lens focus after laser after the reflection of three optical flat reflecting mirrors,
With IP plate described in preset angle directive.
5. laser scanner according to claim 4, which is characterized in that the preset angle include: laser with it is described
The angle of the normal direction of IP plate is in 0~30 degree；
It is preferred that 5-20 degree；Most preferably 5-10 degree.
6. laser scanner according to claim 5, which is characterized in that the optical image signal collector is perpendicular to institute
The placement of IP plate is stated, and its lower end is on the center of scan line at 0~10mm of identity distance IP plate；
It is preferred that 2-8mm；Most preferably 2-5mm.
7. laser scanner according to claim 1, which is characterized in that the IP plate transmission unit include driving motor,
Drive pulley, driving belt at the uniform velocity transmit the IP plate being placed on the driving belt by the way of belt transmission；Institute
Stating IP plate transmission unit further includes IP plate pressing plate, and the IP plate pressing plate is placed in the top of the feed belt, and with the transmission
There are gaps between belt；When the IP pressing plate being placed on the feed belt passes through from the gap, the IP plate pressure
Plate is realized light-blocking for flattening to the IP plate.
8. laser scanner according to claim 7, which is characterized in that the IP plate transmission unit further includes belt damping
And support construction, the belt damping and support construction include belt adjusting seat and belt adjustment pad, the belt adjusting seat
By the belt adjustment pad being placed in below feed belt, feed belt is supported, realizes belt damping.
9. laser scanner according to claim 8, which is characterized in that between the belt adjustment pad and driving belt
It is further provided with belt adjustment tetrafluoro plate；The belt adjustment tetrafluoro plate and the IP plate pressing plate use polytetrafluoroethylene (PTFE) material
Material.
10. laser scanner according to claim 1, which is characterized in that further include that IP plate is dark into plate magazine, IP plate ejecting plate
Box and IP plate disappear shadow lamp；The IP plate enters from the IP plate into plate magazine, exports from the IP plate ejecting plate magazine；The IP plate
The shadow lamp that disappears is used to carry out the shadow that disappears to the IP plate that scanning is completed.
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| CN201811259901.7A CN109490333B (en) | 2018-10-26 | 2018-10-26 | Industrial nondestructive testing X-ray image plate laser scanner |
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| CN110244453A (en) * | 2019-06-28 | 2019-09-17 | 深圳市深图医学影像设备有限公司 | Tooth piece scanner |
| CN111631202A (en) * | 2020-06-19 | 2020-09-08 | 北京交通大学 | Laser insect killer and insect killing method |
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| CN109490333B (en) | 2024-08-27 |
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