CN100431085C - Third generation gleam image intensifier distinguishability adjusting device and method - Google Patents
Third generation gleam image intensifier distinguishability adjusting device and method Download PDFInfo
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- CN100431085C CN100431085C CNB2006101045452A CN200610104545A CN100431085C CN 100431085 C CN100431085 C CN 100431085C CN B2006101045452 A CNB2006101045452 A CN B2006101045452A CN 200610104545 A CN200610104545 A CN 200610104545A CN 100431085 C CN100431085 C CN 100431085C
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Abstract
The invention relates to a resolution adjuster of third-generation micro image intensifier, and relative adjusting method. Wherein, said adjuster uses tubular positioning clamper and cathode clamper to fix the third-generation micro image intensifier on the working bench inside one frame; the compressor formed by compressing handle, pressure transmission rod, rigid pressure head is mounted above the axle of adjusted intensifier; the pressure sensor is between the compressor and the cathode clamper; the detectors of two size detectors are arranged on the rigid compressing head and the sealing disc of image intensifier; when adjusting the resolution, the compressor compresses the intensifier and real-time detect the position changes of rigid compressing head and sealing disc; when the difference is same as the difference between the adhere distance of intensifier and the design value, stopping compressing. The invention can reduce the cost.
Description
Technical field
The invention belongs to the gleam image intensifier field, relate generally to the making of three generations's gleam image intensifier, relate in particular to a kind of adjusting device and control method of three generations's gleam image intensifier resolution.
Technical background
Three generations's gleam image intensifier is the core image device of preferentially selecting for use in the current lll night vision system.These properties of product are directly determining the overall performance of night vision system, and the performance index that improve this product by extraordinary manufacture method have become the focal issue that numerous researchers pay close attention to.Resolution is one of important parameter of three generations's gleam image intensifier, and the resolution of three generations's gleam image intensifier is subjected to all multifactor influences such as microchannel plate (MCP), preceding nearly subsides distance, phosphor screen, improve the resolution of three generations's gleam image intensifier, just must set about the work of conducting a research from above all many-sides.With regard to present manufacture craft, the designer generally adopts and take corresponding technical measures at above-mentioned factor before tubulation.In the 100th page of " night vision device " first volume that Fang Ruzhang writes, two kinds of methods that improve the gleam image intensifier resolution have been introduced, the one, adopt the very high MCP of gain to improve the resolution of image intensifier, yet this method is had higher requirement to the building block of three generations's gleam image intensifier, and domestic MCP technical merit can't satisfy this demand at present, thereby domestic three generations's gleam image intensifier can't adopt this technology to improve resolution; The 2nd, the negative electrode input window adopts fibre faceplate, this method also is to reach target by changing building block, but in three generations's gleam image intensifier, GaAs (GaAs) cathode assembly must carry out bonding with the negative electrode input window, because the coefficient of expansion of fibre faceplate and GaAs cathode assembly is too wide in the gap, can not realize unstressed bondingly, so the utmost point input window of three generations's gleam image intensifier the moon can not adopt fibre faceplate.The U.S. Patent application US2005/0106983 A1 that on May 19th, 2005 announced, a kind of method of the three generations's of adjusting gleam image intensifier resolution is disclosed in " Image intensifier tube ", this method is by the fixed dimension insulating barrier in the edge machine-shaping of negative electrode input window, guarantee the size when the negative electrode input window contacts with the MCP input, this size is preceding nearly subsides size just.Yet the subject matter that this method exists is the difficulty of processing that has increased three generations's gleam image intensifier negative electrode input window, and cost is higher.Make a general survey of above three kinds of methods that improve three generations's gleam image intensifier resolution, all be the technical measures that also do not adopt before the assembly at three generations's gleam image intensifier, and how the resolution of the three generations's gleam image intensifier behind the assembly is regulated, yet there are no open report so far.
Summary of the invention
First technical problem that the present invention will solve is, a kind of device that can regulate the resolution of three generations's gleam image intensifier behind the assembly is provided.
Second technical problem that the present invention will solve is, for utilizing the adjusted method of above-mentioned three generations's gleam image intensifier resolution adjustment device, requirement because of preceding nearly subsides distance causes the below standard three generations's low-light image intensifying of resolution to provide a kind of behind the assembly so that the resolution of this class three generations gleam image intensifier touches the mark.
For solving first technical problem, three generations's gleam image intensifier resolution adjustment device of the present invention comprises: piezoelectric type digital display pressure sensor, the first precise measure monitor, the second precise measure monitor, workbench, the handle of exerting pressure, pressure transmit bar, three or four support bars, rigid pressure head, the fixed flat planar that has center screw, cathode assembly anchor clamps, body positioning fixture, two surfaces up and down of described workbench are parallel, and its upper surface center is provided with location hole; Described support bar one end and workbench are connected, and the other end and described fixed flat planar are connected; Described body positioning fixture is installed on the described workbench by described location hole, is transferred three generations's gleam image intensifier to be placed in the upper end of body positioning fixture by the tight fit of its fluorescence enclosure and described body positioning fixture; Described cathode assembly anchor clamps one end clamps by connector is transferred negative electrode input window and its first working face of three generations's gleam image intensifier to contact with described negative electrode input window outer surface, the other end of cathode assembly anchor clamps and described rigid pressure head are connected, and place the sensing head of described piezoelectric type digital display pressure sensor between its second working surface and the rigid pressure head lower surface; Described pressure transmits bar one end and is connected with the handle of exerting pressure, the middle part is connected with the center screw of described fixed flat planar, the other end then by Bearing Installation in the axis hole of described rigid pressure head upper surface and its pressure transfer surface contact with the upper surface of rigid pressure head; The measuring probe of the described first precise measure monitor is placed on the upper surface of described rigid pressure head, is used to measure transferred three generations's gleam image intensifier variable quantity of its entire length size under pressure; The measuring probe of the described second precise measure monitor is placed on the end face of the following indium envelope dish of being transferred three generations's gleam image intensifier, is used to measure the described under pressure location variation of indium envelope dish down; Described pressure transmits bar, rigid pressure head, is transferred the axial line of three generations's gleam image intensifier to overlap.
For solving second technical problem, the present invention to assembly after the below standard three generations's gleam image intensifier of the resolution method of carrying out resolution adjustment may further comprise the steps: the upper surface of measuring the below standard three generations's gleam image intensifier negative electrode input window of resolution is to the size L between the last indium envelope dish
0According to the size constant and the L that are transferred three generations's gleam image intensifier
0Calculate by the nearly actual value L that pastes distance before the accent three generations gleam image intensifier
1Calculate the actual value of preceding near subsides distance of this three generations's gleam image intensifier and the difference L of design load
2To be transferred three generations's gleam image intensifier be installed on described three generations's gleam image intensifier resolution adjustment device and opened digital indicator, the first precise measure monitor and the second precise measure monitor of described piezoelectric type digital display pressure sensor; The rotation handle of exerting pressure, it is the numerical value of digital indicator demonstration of the piezoelectric type digital display pressure sensor handle of exerting pressure that stops operating when becoming 1 by 0 that the pressure transfer surface that transmits bar when described pressure has just contacted with the upper surface of described rigid pressure head, and the video data of first, second precise measure monitor is made zero; Rotate the handle and be that the ascending rate of initial pressure and per 30 minutes 20kg is exerted pressure to transferring three generations's gleam image intensifier with 300kg of exerting pressure once more, monitor the first precise measure monitor registration L simultaneously
3With the second precise measure monitor registration L
4, work as L
3With L
4Difference equal L
2The time, stop supercharging and keep-uped pressure constant 10 hours after take off from described three generations's gleam image intensifier resolution adjustment device and to be transferred three generations's gleam image intensifier, carry out resolution test, the checking regulating effect.
The present invention transmits bar, cathode assembly anchor clamps, body positioning fixture, rigid pressure head, two adjusting devices that the precise measure monitor is set up with the handle of exerting pressure, pressure in containing the frame body of workbench, exert pressure to device by the rotation handle of exerting pressure, this pressure transmits bar by pressure and is delivered to the rigid pressure head, is delivered on the negative electrode input window and body of being transferred three generations's gleam image intensifier by the cathode assembly anchor clamps thus again.Under pressure, the down position amount of rigid pressure head can reflect the overall dimension changing value of being transferred three generations's gleam image intensifier, and the down position amount of following indium envelope dish can reflect the change in size of body, so the present invention is by first, the second precise measure monitor is measured the location variation of rigid pressure head and following indium envelope dish respectively, and determine institute's applied pressure according to measurement data, before both difference equals during the difference (being required regulated quantity) of nearly actual value of pasting distance and design load, the preceding near subsides distance that just means three generations's gleam image intensifier has reached design load substantially, the requirement that also will touch the mark of its resolution.Because the adjustment process that adopts resolution adjustment device of the present invention that the below standard three generations's gleam image intensifier of resolution is implemented is carried out in atmospheric environment, do not need traditional ultra-high vacuum environment, thereby not only simplified the tube-making process of three generations's gleam image intensifier, also reduced its cost simultaneously.
Description of drawings
Fig. 1 is that three generations's gleam image intensifier resolution adjustment device of the present invention is formed schematic diagram.
Fig. 2 is the below standard three generations's gleam image intensifier schematic diagram of resolution.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, the preferred embodiment of three generations's gleam image intensifier resolution adjustment device of the present invention comprises: the piezoelectric type digital display pressure sensor of being made up of sensing head 12 and digital indicator 18, two precise measure monitors 10 and 15, workbench 17, the handle 6 of exerting pressure, pressure transmit bar 7, three support bars 8, rigid pressure heads 11, the fixed flat planar 9 that has center screw, cathode assembly anchor clamps 13, body positioning fixture 16.Piezoelectric type digital display pressure sensor is produced by factory of Electrical Measuring Instrument joint-stock company of Air China, two precise measure monitors 10 and 15 are Mitutoyo Corp. production, its model is Absolute ID-C150MB, workbench mills into the flattened cylindrical body with the heavy cast iron of 50kg, it is two working surface depth of parallelisms assurance 0.1mm up and down, the screw of even three the dark 10mm of M10/ that distribute in diameter 150mm scope, workbench upper surface center is processed with the location hole of the dark 2mm of Ф 40mm/.Three support bar 8 one ends are connected with three screws on the workbench 17 respectively, and the top of support bar is passed the through hole of three Ф 10mm on circular fixed flat planar 9 edges respectively and with the M10 nut itself and fixed flat planar 9 linked together.Body positioning fixture 16 vertically is placed on the workbench 17 by the location hole tight fit on its cylindrical outer surface and the workbench 17, is placed in body positioning fixture 16 tops by the endoporus upper end tight fit of transferring three generations's gleam image intensifier 14 by its fluorescence enclosure and described body positioning fixture 16.Cathode assembly anchor clamps 13 are made by hard alloy steel, one end is fastened on negative electrode input window 1 (referring to Fig. 2) top of being transferred three generations's gleam image intensifier 14 by jump ring and trip bolt thereof, and its annular working face contacts with negative electrode window 1 outer surface, the other end housing wall of cathode assembly anchor clamps 13 is connected by 3 screws and rigid pressure head 11, place the sensing head 12 of piezoelectric type digital display pressure sensor between second working surface in its hole and the lower surface of rigid pressure head 11, the height of cathode assembly anchor clamps 13 is adjustable.Rigid pressure head 11 is made by the press seal hard alloy steel, and the depth of parallelism of its upper and lower surface is 0.02mm and has " L " shape through hole by lower surface center to sidewall, is used to place the stube cable between sensing head 12 and the digital indicator 18.Pressure transmits bar 7 and is made by hard alloy steel, and its upper end is connected with handle 6 centers of exerting pressure by pin.Application of force handle 6 is done and chrome-faced by the 45# steel, and its two ends are arcuate structure; The middle part that pressure transmits bar 7 is the helicitic texture of M10 and is connected with the center screw of fixed flat planar 9, the lower end then by Bearing Installation in the axis hole of rigid pressure head 11 upper surfaces and its pressure transfer surface contact with the upper surface of rigid pressure head 11.For guaranteeing the consistency of application of force direction, pressure transmits bar 7, rigid pressure head 11, cathode assembly anchor clamps 13, is transferred the axial line of three generations's gleam image intensifier 14, body positioning fixture 16 to overlap.The measuring probe of the first precise measure monitor 10 is placed on the upper surface of rigid pressure head 11, with the change in size value L of rigid pressure head in the monitoring adjustment process
3The change in size of rigid pressure head 11 can reflect is transferred the negative electrode input window 1 of three generations's gleam image intensifier and the variation sum of body size, pressure passes to the upper surface of the negative electrode input window 1 of being transferred three generations's gleam image intensifier 14 by rigid pressure head 11 and cathode assembly anchor clamps 13 in adjustment process, rigid pressure head 11 and cathode assembly anchor clamps 13, negative electrode input window 1 all is that rigidity deformation takes place in adjustment process, its change in size can be ignored, and the location variation of therefore measuring rigid pressure head 11 can reflect the overall dimension changing value L that is conditioned three generations's gleam image intensifier 14
3The measuring probe of the second precise measure monitor 15 is placed on the end face of the following indium envelope dish 5 of being transferred three generations's gleam image intensifier 14, with the change in location value L of following indium envelope dish 5 in adjustment process of monitoring three generations gleam image intensifier 14
4Because the body of three generations's gleam image intensifier 14 is by pottery and can cut down material and constitute, distortion in the pressure limit of hundreds of kilogram also belongs to rigidity deformation, its change in size value can be ignored, and the change in location value of indium envelope dish 5 can reflect the change in size of body under therefore measuring.Because the negative electrode input window 1 and the phosphor screen output window of three generations's gleam image intensifier 14 all are to be sealed by the soft metal high purity indium, thereby in course of exerting pressure, the change in size of three generations's gleam image intensifier 14 only can occur on two indium front covers, this shows that the changing value of three generations's gleam image intensifier 14 overall dimensions equals the changing value of body size and the change in size value of negative electrode input window 1 is L
3=L
4+ L
2
Fig. 2 resolution that to be the tester go out according to the WJ-1995 standard testing below standard 20051008
#The composition schematic diagram of-1 three generations's gleam image intensifier 14, the embodiment that the present invention regulates the resolution of three generations's gleam image intensifier 14 shown in Figure 2 may further comprise the steps:
1,20051008
#-1 three generations's gleam image intensifier 14 usefulness are special-purpose to be transmitted stainless steel box to bring cleanliness factor into is that cleanliness factor is on 100 grades the clean bench in 10000 grades the clean workplace, put on clean fingerstall, the numeral of producing with Japanese Mitutoyo Corp. company shows that amesdial measures the upper surface of negative electrode input window 1 of this three generations's gleam image intensifier 14 to the size L between the last indium envelope dish 3
0, the L of this preferred embodiment
0Be 2.9mm, utilize formula L
1=L
0-2.4, calculate the actual preceding nearly distance L of pasting
1Be 0.5mm.2.4mm be at present domestic at the constant that grinds the decision of three generations's gleam image intensifier dimension chain.
2, according to the actual preceding near distance L of pasting that calculates
10.25mm ± 0.05mm compares with design load, determines the size L that needs fine adjustment
2, the L of this preferred embodiment
2Be 0.25mm ± 0.05mm.
3, with 20051008
#-1 three generations's gleam image intensifier 14 manual installing on the workbench of three generations's gleam image intensifier resolution adjustment device guarantee that pressure transmits bar 7, rigid pressure head 11, cathode assembly anchor clamps 14,20051008
#The axial line of-1 three generations's gleam image intensifier, body positioning fixture 16 overlaps.
4, open the sensing head 12 and the digital indicator 18 of piezoelectric type digital display pressure sensor, with the speed of 360 ° of the per minutes handle 6 of exerting pressure that turns clockwise, observe the registration of digital indicator 18 simultaneously, when the registration of digital indicator 18 when zero becomes 1, the handle 6 of exerting pressure immediately stops operating.Open digital indicator 18 and two precise measure monitors 10 and 15 and save its zero-setting button simultaneously, make registration be 0 with hand adjustment.
5, with hand with the speed of 360 ° of the per minutes handle 6 of exerting pressure that turns clockwise, when the registration of digital indicator 18 was 300, the handle 6 of exerting pressure that stops operating, and keeping 30 minutes write down the registration L of the first precise measure monitor 10 simultaneously
3The registration L of=0.06mm and the second precise measure monitor 15
4=0.02mm; Wait for after 30 minutes, write down the registration L of the first precise measure monitor 10 once more
3The registration L of=0.02mm and the second precise measure monitor 15
4=0.02mm.
6, clockwise rotate the handle 6 of exerting pressure with hand with the speed of 30 ° of per minute kinds, observe the registration of digital indicator 18 simultaneously, make it to become 350, the handle 6 of exerting pressure that stops operating writes down the registration L of the first precise measure monitor 10
3The registration L of=0.10mm and the second precise measure monitor 15
4=0.03mm kept 30 minutes, above repeatedly once more operation.
7, up to the registration L of the first precise measure monitor 10
3The registration L of=0.45mm and the second precise measure monitor 15
4=0.15mm, L satisfies condition
2=L
3-L
4During=0.25mm ± 0.05mm, stop to exert pressure, note all instrument and show registration, kept 10 hours.
8, after 10 hours, write down the registration L of the first precise measure monitor 10
3The registration L of=0.48mm and the second precise measure monitor 15
4=0.16mm, the registration 348 of digital indicator 18.Speed with 360 ° of per minutes rotates counterclockwise the handle 6 of exerting pressure with hand, becomes 0 up to the registration of digital indicator 18 by 348, and the handle 6 of exerting pressure stops operating.
9, close the mains switch of the first precise measure monitor 10 and the second precise measure monitor 15, take off three generations's gleam image intensifier 14 of having regulated from the cylindrical tube anchor clamps 16 of resolution device for precisely regulating with the hand of wearing clean fingerstall.
10, with three generations's gleam image intensifier 14 of adjusted mistake, put into special-purpose stainless steel and transmit box, deliver on three generations's gleam image intensifier resolution test device, measure its resolution according to the technological specification of WJ-1995 standard code, the checking regulating effect by the professional test personnel.After tested, 20051008 after the adjusting
#The resolution of-1 three generations's gleam image intensifier 14 reaches 361p/mm, satisfies index request.
Claims (2)
1. three generations's gleam image intensifier resolution adjustment device, it is characterized in that: comprise that piezoelectric type digital display pressure sensor, the first precise measure monitor [10], the second precise measure monitor [15], workbench [17], the handle of exerting pressure [6], pressure transmit bar [7], three or four support bars [8], rigid pressure head [11], the fixed flat planar [9] that has center screw, cathode assembly anchor clamps [13], body positioning fixture [16], two surfaces up and down of described workbench [17] are parallel, and its upper surface center is provided with location hole; Described support bar [8] one ends and workbench [17] are connected, and the other end and described fixed flat planar [9] are connected; Described body positioning fixture [16] is installed on the described workbench [17] by described location hole, is transferred three generations's gleam image intensifier [14] to be placed in the upper end of body positioning fixture [16] by the tight fit of its fluorescence enclosure and described body positioning fixture [16]; Described cathode assembly anchor clamps [13] one ends clamp by connector is transferred negative electrode input window [1] and its first working face of three generations's gleam image intensifier [14] to contact with described negative electrode input window [1] outer surface, the other end of cathode assembly anchor clamps [13] and described rigid pressure head [11] are connected, and place the sensing head [12] of described piezoelectric type digital display pressure sensor between its second working surface and rigid pressure head [11] lower surface; Described pressure transmits bar [7] one ends and is connected with the handle [6] of exerting pressure, the middle part is connected with the center screw of described fixed flat planar [9], the other end then by Bearing Installation in the axis hole of described rigid pressure head [11] upper surface and its pressure transfer surface contact with the upper surface of rigid pressure head [11]; The measuring probe of the described first precise measure monitor [10] is placed on the upper surface of described rigid pressure head [11], is used for measuring quilt and transfers three generations's gleam image intensifier [14] variable quantity of its entire length size under pressure; The measuring probe of the described second precise measure monitor [15] is placed on the end face of the following indium envelope dish [5] of being transferred three generations's gleam image intensifier [14], is used for measuring the described under pressure location variation of indium envelope dish [5] down; Described pressure transmits bar [7], rigid pressure head [11], is transferred the axial line of three generations's gleam image intensifier [14] to overlap.
2. method of utilizing the described three generations's gleam image intensifier of claim 1 resolution adjustment device three generations's gleam image intensifier to be carried out resolution adjustment, it is characterized in that this method may further comprise the steps: the upper surface of measuring below standard three generations's gleam image intensifier [14] the negative electrode input window [1] of resolution is to the size L between the last indium envelope dish [3]
0According to the size constant and the L that are transferred three generations's gleam image intensifier [14]
0Calculate the actual value L that is transferred the preceding nearly subsides distance of three generations's gleam image intensifier [14]
1Calculate the actual value of preceding near subsides distance of this three generations's gleam image intensifier [14] and the difference L of design load
2To be transferred three generations's gleam image intensifier [14] be installed on described three generations's gleam image intensifier resolution adjustment device and opened digital indicator [18], the first precise measure monitor [10] and the second precise measure monitor [15] of described piezoelectric type digital display pressure sensor; The rotation handle [6] of exerting pressure, it is that the numerical value of digital indicator [18] demonstration of piezoelectric type digital display pressure sensor is when becoming 1 by 0 that the pressure transfer surface that transmits bar [7] when described pressure has just contacted with the upper surface of described rigid pressure head [11], the handle [6] of exerting pressure that stops operating, and the video data of first, second precise measure monitor [10,15] made zero; Rotate the handle [6] and be that the ascending rate of initial pressure and per 30 minutes 20kg is exerted pressure to transferring three generations's gleam image intensifier [14] with 300kg of exerting pressure once more, monitor first precise measure monitor [10] the registration L simultaneously
3With second precise measure monitor [15] the registration L
4, work as L
3With L
4Difference equal L
2The time, stop supercharging and keep-uped pressure constant 10 hours after take off from described three generations's gleam image intensifier resolution adjustment device and to be transferred three generations's gleam image intensifier [14], it is carried out resolution test, the checking regulating effect.
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| CNB2006101045452A CN100431085C (en) | 2006-09-11 | 2006-09-11 | Third generation gleam image intensifier distinguishability adjusting device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102052905B (en) * | 2009-11-09 | 2012-09-05 | 南京理工大学 | Device and method for testing effective diameter of cathode of micro-optic device with wide spectrum |
| CN105869974B (en) * | 2016-04-08 | 2017-09-15 | 北方夜视技术股份有限公司 | A kind of method integrally assembled for gleam image intensifier |
| CN109374265B (en) * | 2018-10-29 | 2020-11-27 | 北方夜视技术股份有限公司 | Method for measuring cathode close-proximity focusing distance of super-second-generation image intensifier |
| CN112378624B (en) * | 2020-11-11 | 2022-10-25 | 北方夜视技术股份有限公司 | Testing device and method for simulating close-proximity distance parameter of image intensifier |
| CN112911275B (en) * | 2021-01-14 | 2023-03-07 | 北方夜视技术股份有限公司 | Device for testing image intensifier under low-pressure variable-temperature environment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305142A (en) * | 1992-03-06 | 1994-04-19 | Itt Corporation | Replacement assembly for an image intensifier tube |
| CN2590305Y (en) * | 2002-10-24 | 2003-12-03 | 南京理工大学 | Multifunctional image intensifier bright light automatic protecting apparatus |
| US20050106983A1 (en) * | 1999-03-18 | 2005-05-19 | Litton Systems, Inc. | Image intensification tube |
-
2006
- 2006-09-11 CN CNB2006101045452A patent/CN100431085C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5305142A (en) * | 1992-03-06 | 1994-04-19 | Itt Corporation | Replacement assembly for an image intensifier tube |
| US20050106983A1 (en) * | 1999-03-18 | 2005-05-19 | Litton Systems, Inc. | Image intensification tube |
| CN2590305Y (en) * | 2002-10-24 | 2003-12-03 | 南京理工大学 | Multifunctional image intensifier bright light automatic protecting apparatus |
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