CN210514374U

CN210514374U - Micro-channel plate and fluorescent screen dynamic test electrode and connecting structure

Info

Publication number: CN210514374U
Application number: CN201920917478.9U
Authority: CN
Inventors: 赵勇; 袁志耀; 王芳
Original assignee: Nanjing Shanjiexin Electric Technology Co Ltd
Current assignee: Nanjing Shanjiexin Electric Technology Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-12
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a microchannel plate and fluorescent screen developments test electrode and connection structure are provided with in microchannel plate and the fluorescent screen developments testing arrangement and are surveyed the pipe tray, should be surveyed the pipe tray and can drive in proper order and be surveyed the pipe and lie in between detection signal source and the observation window, microchannel plate and fluorescent screen developments test electrode and connection structure are including deciding electrode and vacuum high-voltage coaxial cable, can realize promptly detecting in proper order when being surveyed the pipe, is surveyed the pipe and external high voltage power supply's automatic connection or disconnection. The vacuum high-voltage coaxial cable can ensure the air tightness of the cable passing through the bell jar base.

Description

Micro-channel plate and fluorescent screen dynamic test electrode and connecting structure

Technical Field

The utility model relates to a microchannel plate and fluorescent screen detect technical field, specific microchannel plate and fluorescent screen developments test electrode and connection structure that says so.

Background

When testing the microchannel plate and the fluorescent screen, ultraviolet light source irradiation or electron source injection is needed to be carried out on the microchannel plate or the fluorescent screen in an electrified state in a vacuum environment, and the microchannel plate and the fluorescent screen are observed to see whether the fluorescent screen has sparking, bright spots and peeling, and the failure reason is analyzed. The traditional inspection mode needs to separately detect the fluorescent screen, and the detection efficiency is low due to the difficulty in creating the detection environment. If a plurality of electrical components are detected in sequence, connection and disconnection are required many times, and an electrode structure capable of automatic connection and disconnection is required.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide microchannel plate and fluorescent screen dynamic test electrode and connection structure, can be automatic with the measured tube electrode intercommunication and disconnection, detect in proper order for the multiunit measured tube and provide the detection basis.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the micro-channel plate and fluorescent screen dynamic test electrode and connection structure comprises a rack and a control cabinet, wherein a test device is arranged on the rack, the control cabinet is used for controlling a control system of the micro-channel plate and fluorescent screen dynamic test device, a multi-path high-voltage power supply and a high resistance meter, the test device comprises a bell jar base, the upper part of the bell jar base is detachably connected with a bell jar in a sealing way, the upper surface of the bell jar is in transmission connection with a lifter, a vacuumizing device is connected below the bell jar base, a tested pipe tray is arranged between the bell jar base and the bell jar, the tested pipe tray is in transmission connection with a station rotating device, and the station rotating device is arranged below the bell jar base;

the method is characterized in that: the edge of the upper surface of the tray of the pipe to be tested is uniformly provided with a plurality of pipes to be tested, each pipe to be tested is electrically connected with one moving electrode, the moving electrodes are arranged on the edge of the upper surface of the tray of the pipe to be tested, the moving electrodes are detachably connected with fixed electrodes, the fixed electrodes are arranged on the upper surface of the base of the bell jar, and the fixed electrodes are communicated with an external power supply through vacuum high-voltage coaxial cables;

the vacuum high-pressure coaxial cable comprises a coaxial cable flange, the coaxial cable flange is fixedly installed on the lower surface of the bell jar base through a mounting screw, a plurality of through holes are formed in the coaxial cable flange, a coaxial cable sealing groove is formed in each through hole, a coaxial cable core is fixedly installed in each coaxial cable sealing groove, each coaxial cable sealing groove is used for achieving sealing between the inner wall of each through hole and the outer wall of each coaxial cable core, the two ends of each coaxial cable sealing groove are tightly fixed with the outer wall of the bell jar base through coaxial cable locking caps, one end of each coaxial cable core penetrates through the bell jar base and is communicated with the fixed electrode, and the other end of each coaxial cable core is communicated with an external power supply.

And a detection signal source is arranged below the tested tube, and the detection signal source comprises but is not limited to an ultraviolet light source and an electron source.

An observation window is arranged right above the detection signal source and is arranged on the bell jar, and the observation window is used for visual inspection or installation of the CCD monitoring device.

The station rotating device comprises a rotary driving motor and a magnetic fluid sealing device, the magnetic fluid sealing device is connected with the bell jar base in a sealing mode, and an output shaft of the rotary driving motor penetrates through the bell jar base and is fixedly connected with the tray of the measured pipe through a connector.

The upper surface of the tested pipe tray is fixedly provided with 15-30 tested pipes, and each tested pipe is driven to rotate between a detection signal source and an observation window through the station rotating device during detection.

The lifter adopts a cantilever type worm and gear structure, the driving motor further drives the horizontally arranged cantilever to realize the lifting function by controlling the lifting of the vertically arranged worm and gear structure, and the horizontally arranged cantilever is fixedly connected with the outer surface of the bell jar.

A flange sealing groove is formed in one side of the contact surface of the coaxial cable flange and the bell jar base, and a sealing ring is arranged in the flange sealing groove.

The fixed electrode comprises a fixed brush seat which is vertically arranged, a plurality of coaxial elastic electrodes are fixedly arranged on the fixed brush seat and are sequentially arranged in the vertical direction, the number of the coaxial elastic electrodes is the same as that of coaxial cable cores in the vacuum high-voltage coaxial cable, and the coaxial elastic electrodes are correspondingly connected with the coaxial cable cores one by one through input electrodes;

the movable electrode comprises a movable brush seat which is vertically arranged, a plurality of output electrodes are vertically and sequentially arranged on each movable brush seat, the number of the output electrodes is the same as that of the input electrodes, and the height of each output electrode corresponds to a coaxial elastic electrode which is arranged at the same height.

One side of the horizontal section of the movable brush seat, which faces the fixed brush seat, is of an arc-shaped structure, and the coaxial elastic electrode is in a compressed state when being contacted with the output electrode.

The microchannel plate, the fluorescent screen dynamic test electrode and the connecting structure have the following beneficial effects: first, the coaxial cable sealing groove can ensure the air tightness of each coaxial cable core when passing through the coaxial cable flange. And secondly, one side of the movable brush seat facing the fixed brush seat is an arc-shaped surface, so that the coaxial elastic electrode is conveniently connected with and separated from the output electrode. Thirdly, the coaxial elastic electrodes and the output electrodes are sequentially arranged in the vertical direction, and the same structure can be used for adapting to different electrode quantities.

Drawings

FIG. 1 is a schematic structural diagram of the microchannel plate and fluorescent screen dynamic testing device of the present invention.

Fig. 2 is a schematic structural diagram of the dynamic testing electrode and connection structure for microchannel plate and fluorescent screen of the present invention.

FIG. 3 is a schematic view of the position of the dynamic testing electrode and connection structure for microchannel plate and fluorescent screen according to the present invention.

Fig. 4 is a schematic structural view of the microchannel plate, the dynamic testing electrode of the fluorescent screen and the vacuum high-voltage coaxial cable with the connection structure of the invention.

FIG. 5 is a schematic view of the structure of the microchannel plate, the dynamic testing electrode of the fluorescent screen, the moving electrode of the connecting structure and the fixed electrode of the invention.

The attached drawings of the specification are marked as follows: 1. a control cabinet; 2. an elevator; 3. an observation window; 4. detecting a signal source; 5. a bell jar; 6. a station rotating device; 7. a vacuum pumping device; 8. a frame; 9. a moving electrode; 10. a pipe to be tested; 11. a tested pipe tray; 12. fixing an electrode; 13. a bell jar base; 14. a vacuum high voltage coaxial cable; 15. a connector; 16. mounting screws; 17. a flange seal groove; 18. a coaxial cable seal groove; 19. a coaxial cable core; 20. a coaxial cable locking cap; 22. a coaxial cable flange; 23. a fixed brush seat; 24. a movable brush seat; 25. an input electrode; 26. an output electrode; 27. a coaxial elastic electrode.

Detailed Description

The invention is further described below with reference to the drawings and specific preferred embodiments.

The micro-channel plate and fluorescent screen dynamic test electrode and connection structure comprises a rack 8 and a control cabinet 1, wherein a test device is installed on the rack 8, the control cabinet 1 is used for controlling a control system, a multi-path high-voltage power supply and a high-impedance meter of the micro-channel plate and fluorescent screen dynamic test device, the test device comprises a bell jar base 13, the upper part of the bell jar base 13 is detachably connected with a bell jar 5 in a sealing way, the upper surface of the bell jar 5 is in transmission connection with a lifter 2, a vacuumizing device 7 is connected below the bell jar base 13, a tested tube tray 11 is arranged between the bell jar base 13 and the bell jar 5, the tested tube tray 11 is in transmission connection with a station rotating device 6, and the station rotating device 6 is arranged below the bell jar base 13;

the method is characterized in that: a plurality of tested tubes 10 are uniformly arranged on the edge of the upper surface of a tested tube tray 11, each tested tube 10 is electrically connected with a movable electrode 9, the movable electrodes 9 are arranged on the edge of the upper surface of the tested tube tray 11, the movable electrodes 9 are detachably connected with fixed electrodes 12, the fixed electrodes 12 are arranged on the upper surface of a bell jar base 13, and the fixed electrodes 12 are communicated with an external power supply through vacuum high-voltage coaxial cables 14;

vacuum high pressure coaxial cable 14 include coaxial cable flange 22, coaxial cable flange 22 pass through mounting screw 16 fixed mounting at the lower surface of bell jar base 13, coaxial cable flange 22 on open and to have a plurality of through-hole, be provided with coaxial cable seal groove 18 in every through-hole, coaxial cable seal groove 18 in fixed mounting have coaxial cable core 19, coaxial cable seal groove 18 be used for realizing the sealed between through-hole inner wall and the coaxial cable core 19 outer wall, coaxial cable seal groove 18 both ends all closely fixed with bell jar base 13 outer wall through coaxial cable locking cap 20, coaxial cable core 19 one end pass bell jar base 13 and fixed electrode 12 intercommunication, the other end and external power supply intercommunication.

In this embodiment, a detection signal source 4 is disposed below the measured tube 10, and the detection signal source 4 includes, but is not limited to, an ultraviolet light source and an electron source.

In this embodiment, an observation window 3 is arranged right above the detection signal source 4, the observation window 3 is arranged on the bell jar 5, and the observation window 3 is used for visual inspection or installation of the CCD monitoring device.

In this embodiment, the station rotating device 6 includes a rotary driving motor and a magnetic fluid sealing device, the magnetic fluid sealing device is hermetically connected with the bell jar base 13, and an output shaft of the rotary driving motor passes through the bell jar base 13 and is fixedly connected with the measured pipe tray 11 through the connector 15.

In this embodiment, 15 to 30 measured tubes 10 are fixedly mounted on the upper surface of the measured tube tray 11, and each measured tube 10 is driven to rotate between the detection signal source 4 and the observation window 3 through the station rotating device 6 during detection.

In this embodiment, the lifter 2 adopts a cantilever type worm gear structure, the driving motor further drives the horizontally arranged cantilever to realize a lifting function by controlling the lifting of the vertically arranged worm gear structure, and the horizontally arranged cantilever is fixedly connected with the outer surface of the bell jar 5.

Further, when the ultraviolet light source or the electron source irradiates the tested tube 10, the observation window 3 is used for visual observation or CCD monitoring, whether the fluorescent screen is ignited or not, bright spots or peeling can be observed, the electronic gain of the MCP can be calculated and read through the micro-current meter connected in series, the failure reason can be analyzed and judged by utilizing the automatic switch-off on the ultraviolet light source, and the basis for improving the process manufacturing of the MCP tube shell, the fluorescent screen and the like is provided.

Furthermore, the bell jar 5 and the bell jar base 13 are mutually sealed and combined under the driving of the lifter 2 to form a closed space, and the vacuum pumping device 7 is used for vacuumizing the closed space to form a vacuum space. For forming a testing environment for testing the tested pipe 10.

Furthermore, a rotary driving motor in the station rotating device 6 adopts a servo motor, and the servo motor and the magnetic fluid form a sealed rotating shaft to provide power for the rotation of the tested pipe tray 11.

In this embodiment, a flange sealing groove 17 is formed on one side of a contact surface between the coaxial cable flange 22 and the bell jar base 13, and a sealing ring is arranged in the flange sealing groove 17.

In this embodiment, the fixed electrode 12 includes a vertically arranged fixed brush base 23, a plurality of coaxial elastic electrodes 27 are fixedly mounted on the fixed brush base 23, the plurality of coaxial elastic electrodes 27 are sequentially arranged in the vertical direction, the number of the coaxial elastic electrodes 27 is the same as the number of the coaxial cable cores 19 in the vacuum high-voltage coaxial cable 14, and the coaxial elastic electrodes 27 are connected with the coaxial cable cores 19 in a one-to-one correspondence manner through the input electrodes 25;

in this embodiment, the moving electrode 9 includes moving brush holders 24 vertically arranged, each moving brush holder 24 is vertically provided with a plurality of output electrodes 26 in sequence, the number of the output electrodes 26 is the same as that of the input electrodes 25, and the height of each output electrode 26 corresponds to a coaxial elastic electrode 27 arranged at the same height.

In this embodiment, one side of the horizontal cross section of the movable brush holder 24 facing the fixed brush holder 23 is an arc-shaped structure, and the coaxial elastic electrode 27 is in a compressed state when contacting the output electrode 26.

Further, the coaxial cable locking cap 20 can also be used for locking two ends of the coaxial cable core 19, and the coaxial cable flange 22 is provided to facilitate the replacement of the vacuum high-voltage coaxial cable 14.

Further, the brush holder 23 is made of polytetrafluoroethylene and is used for insulating and fixing the coaxial elastic electrode 27, the input electrode 25 is used for connecting the coaxial elastic electrode 27 with an external high-voltage power supply, and the output electrode 26 is used for connecting the electrode of the tested tube 10. The coaxial elastic electrode 27 has the characteristics of elasticity, small resistance, electric conduction and long service life, and belongs to the prior art. The movable brush seat 24 is used for insulating and fixedly connecting the electrode of the tested pipe.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.

Claims

1. A micro-channel plate, a fluorescent screen dynamic test electrode and a connecting structure, which comprises a frame (8) and a control cabinet (1), the frame (8) is provided with a testing device, the control cabinet (1) is used for controlling a control system of the microchannel plate and the fluorescent screen dynamic testing device, a multi-path high-voltage power supply and a high-impedance meter, the testing device comprises a bell jar base (13), the upper part of the bell jar base (13) is detachably connected with a bell jar (5) in a sealing way, the upper surface of the bell jar (5) is in transmission connection with the lifter (2), a vacuumizing device (7) is connected below the bell jar base (13), a tested pipe tray (11) is arranged between the bell jar base (13) and the bell jar (5), the tested pipe tray (11) is in transmission connection with the station rotating device (6), the station rotating device (6) is arranged below the bell jar base (13);

the method is characterized in that: a plurality of tested tubes (10) are uniformly arranged on the edge of the upper surface of a tested tube tray (11), each tested tube (10) is electrically connected with a movable electrode (9), the movable electrodes (9) are arranged on the edge of the upper surface of the tested tube tray (11), the movable electrodes (9) are detachably connected with fixed electrodes (12), the fixed electrodes (12) are arranged on the upper surface of a bell jar base (13), and the fixed electrodes (12) are communicated with an external power supply through vacuum high-voltage coaxial cables (14);

the vacuum high-voltage coaxial cable (14) comprises a coaxial cable flange (22), the coaxial cable flange (22) is fixedly arranged on the lower surface of the bell jar base (13) through a mounting screw (16), a plurality of through holes are arranged on the coaxial cable flange (22), a coaxial cable sealing groove (18) is arranged in each through hole, a coaxial cable core (19) is fixedly arranged in the coaxial cable sealing groove (18), the coaxial cable sealing groove (18) is used for realizing the sealing between the inner wall of the through hole and the outer wall of the coaxial cable core (19), both ends of the coaxial cable sealing groove (18) are tightly fixed with the outer wall of the bell jar base (13) through a coaxial cable locking cap (20), one end of the coaxial cable core (19) penetrates through the bell jar base (13) to be communicated with the fixed electrode (12), and the other end of the coaxial cable core is communicated with an external power supply.

2. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 1, wherein: a detection signal source (4) is arranged below the tested tube (10), and the detection signal source (4) comprises but is not limited to an ultraviolet light source and an electron source.

3. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 2, wherein: an observation window (3) is arranged right above the detection signal source (4), the observation window (3) is arranged on a bell jar (5), and the observation window (3) is used for visual inspection or installation of a CCD monitoring device.

4. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 2 or 3, wherein: the station rotating device (6) comprises a rotating driving motor and a magnetic fluid sealing device, the magnetic fluid sealing device is connected with the bell jar base (13) in a sealing mode, and an output shaft of the rotating driving motor penetrates through the bell jar base (13) and is fixedly connected with the tested pipe tray (11) through a connector (15).

5. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 4, wherein: the device is characterized in that 15-30 tested tubes (10) are fixedly mounted on the upper surface of the tested tube tray (11), and each tested tube (10) is driven to rotate to a position between a detection signal source (4) and an observation window (3) through a station rotating device (6) during detection.

6. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 1, wherein: the lifter (2) adopts a cantilever type worm gear structure, the driving motor further drives the horizontally arranged cantilever to realize a lifting function by controlling the lifting of the vertically arranged worm gear structure, and the horizontally arranged cantilever is fixedly connected with the outer surface of the bell jar (5).

7. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 1, wherein: a flange sealing groove (17) is formed in one side of the contact surface of the coaxial cable flange (22) and the bell jar base (13), and a sealing ring is arranged in the flange sealing groove (17).

8. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 1, wherein: the fixed electrode (12) comprises a fixed brush seat (23) which is vertically arranged, a plurality of coaxial elastic electrodes (27) are fixedly mounted on the fixed brush seat (23), the coaxial elastic electrodes (27) are sequentially arranged in the vertical direction, the number of the coaxial elastic electrodes (27) is the same as that of the coaxial cable cores (19) in the vacuum high-voltage coaxial cable (14), and the coaxial elastic electrodes (27) are correspondingly connected with the coaxial cable cores (19) one by one through input electrodes (25);

the movable electrode (9) comprises vertically arranged movable brush seats (24), a plurality of output electrodes (26) are vertically and sequentially arranged on each movable brush seat (24), the number of the output electrodes (26) is the same as that of the input electrodes (25), and the height of each output electrode (26) corresponds to one coaxial elastic electrode (27) arranged at the same height.

9. The microchannel plate and phosphor screen dynamic test electrode and connection structure of claim 8, wherein: one side of the horizontal section of the movable brush seat (24) facing the fixed brush seat (23) is of an arc-shaped structure, and the coaxial elastic electrode (27) is in a compressed state when being contacted with the output electrode (26).