CN205157169U - Shimmer image intensifier characteristic test system - Google Patents
Shimmer image intensifier characteristic test system Download PDFInfo
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- CN205157169U CN205157169U CN201520976327.2U CN201520976327U CN205157169U CN 205157169 U CN205157169 U CN 205157169U CN 201520976327 U CN201520976327 U CN 201520976327U CN 205157169 U CN205157169 U CN 205157169U
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- image intensifier
- photomultiplier
- light source
- gleam image
- test system
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Abstract
The utility model relates to a shimmer image intensifier characteristic test system, include with the optical axis light source, the piece of decaying in the sealing drum set gradually, shimmer image intensifier and photomultiplier await measuring, await measuring shimmer image intensifier the photocathode towards the decay piece, await measuring shimmer image intensifier the screen towards the photomultiplier fluorescent lamp, still including the test host computer, the test host computer includes adjustablely the drive power supply and the measurement of the luminance of light source photomultiplier output current's measuring apparatu, the light source with the drive power supply electricity is connected, photomultiplier with the measuring apparatu electricity is connected. The utility model discloses a to shimmer image intensifier's the luminance gain and the test of equivalent background illuminance, and the simple structure of system, easy operation, it is with low costs, can be used for the study of shimmer image intensifier correlated curriculum.
Description
Technical field
The utility model relates to field of photoelectric technology, particularly a kind of gleam image intensifier characteristic test system.
Background technology
Gleam image intensifier is a kind of vacuum image device, forms primarily of photocathode, electron-optical system and video screen.Its image enhaucament effect completes primarily of three links, and namely the photocathode of external photoeffect changes electronic image into the low-energy radiation image be input to above it; Electronic image is obtained energy well and is accelerated and focuses in the image planes of this electron-optical system by specific electrostatic field or electromagnetic complex field, the video screen being positioned at electron-optical system image planes is bombarded by high-velocity electrons and sends the target visual picture be enhanced accordingly with incident image power.
Luminance gain, equivalent background illumination and distortion are three each and every one important parameters weighing gleam image intensifier performance, and it directly affects the performance that low-light is also system complete machine.Therefore, significant to the research of the measuring technology of the luminance gain of gleam image intensifier, equivalent background illumination and distortion performance.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of gleam image intensifier characteristic test system, realizes the test of luminance gain to gleam image intensifier and equivalent background illumination.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of gleam image intensifier characteristic test system, comprise same optical axis and be set in turn in light source, attenuator, gleam image intensifier to be measured and photomultiplier in sealing bore, the photocathode of described gleam image intensifier to be measured is towards described attenuator, and the face of described gleam image intensifier to be measured is to described photomultiplier transit light pipe; Also comprise Test Host, described Test Host comprises the driving power of the brightness of adjustable described light source and measures the measuring instrument of described photomultiplier output current; Described light source is electrically connected with described driving power, and described photomultiplier is electrically connected with described measuring instrument.
The beneficial effects of the utility model are: driving power is luminous with default drive current driving light source, the light that light source sends quantitatively decays into through attenuator the photocathode that faint light signal is irradiated to gleam image intensifier to be measured, export from the video screen of gleam image intensifier to be measured after gleam image intensifier to be measured strengthens, photomultiplier detects the light signal that video screen exports, and light signal is converted to electric current output, through the direct display translation electric current of measuring instrument, according to output current, drive current, the light efficiency of light source and the attenuation rate of attenuator extrapolate luminance gain and the equivalent background illumination of gleam image intensifier to be measured, native system structure is simple, and simple to operate, cost is low, and can be used in the study of gleam image intensifier correlated curriculum.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described driving power comprise the numerical value of the drive current for light source described in display driver the first display screen and for regulating the adjusting knob of the size of drive current.
Further, described first display screen and adjusting knob are arranged at the front panel of described Test Host.
Further, described first display screen is arranged at the top of described adjusting knob.
Adopt above-mentioned enter the beneficial effect of three step schemes be adopt the numerical value of the first display screen display driver electric current, the convenient size knowing drive current in time accurately; First display screen is arranged at above adjusting knob, and the numerical value of the drive current facilitating contrast first display screen to show, the size of turn adjusting knob to drive current regulates.
Further, described measuring instrument comprises the second display screen of the numerical value for showing described output current and the switching push button for the unit of display that switches described output current.
Further, described second display screen and switching push button are arranged at the front panel of described Test Host.
Further, described second display screen is arranged at the top of described switching push button.
Adopt above-mentioned enter the beneficial effect of three step schemes be adopt the numerical value of second display screen display translation electric current, the convenient size knowing output current in time accurately; Second display screen is arranged at the top of switching push button, the numerical value of the output current of convenient contrast second display screen display, switching push button is adopted to switch the unit of display of output current, when current value is less, adopt subsection to show output current, thus know the size of output current more accurately.
Further, shown Test Host also comprises rear panel, described rear panel is provided with power interface, switch, light source interface, photo-multiplier current interface and photomultiplier high voltage interface; Described Test Host electrically connects as described Test Host by described power interface and city and powers, the confession power-off of Test Host described in described switch control rule, described light source realizes being electrically connected by described light source interface with described driving power, and described photomultiplier realizes being electrically connected by described photo-multiplier current interface and photomultiplier high voltage interface with described measuring instrument.
The beneficial effect of above-mentioned further scheme is adopted to be that what to facilitate Test Host supplies power-off, the electrical connection of the electrical connection of light source and driving power and photomultiplier and measuring instrument.
Accompanying drawing explanation
Fig. 1 is the theory diagram of a kind of gleam image intensifier characteristic test system of the utility model.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of gleam image intensifier characteristic test system, comprise same optical axis and be set in turn in light source, attenuator, gleam image intensifier to be measured and photomultiplier in sealing bore, the photocathode of described gleam image intensifier to be measured is towards described attenuator, and the face of described gleam image intensifier to be measured is to described photomultiplier transit light pipe; Also comprise Test Host, described Test Host comprises the driving power of the brightness of adjustable described light source and measures the measuring instrument of described photomultiplier output current; Described light source is electrically connected with described driving power, and described photomultiplier is electrically connected with described measuring instrument.
Described driving power comprise the numerical value of the drive current for light source described in display driver the first display screen and for regulating the adjusting knob of the size of drive current.Described first display screen and adjusting knob are arranged at the front panel of described Test Host.Described first display screen is arranged at the top of described adjusting knob.
Described measuring instrument comprises the second display screen of the numerical value for showing described output current and the switching push button for the unit of display that switches described output current.Described second display screen and switching push button are arranged at the front panel of described Test Host.Described second display screen is arranged at the top of described switching push button.
Shown Test Host also comprises rear panel, described rear panel is provided with power interface, switch, light source interface, photo-multiplier current interface and photomultiplier high voltage interface; Described Test Host electrically connects as described Test Host by described power interface and city and powers, the confession power-off of Test Host described in described switch control rule, described light source realizes being electrically connected by described light source interface with described driving power, and described photomultiplier realizes being electrically connected by described photo-multiplier current interface and photomultiplier high voltage interface with described measuring instrument.
The luminance gain of gleam image intensifier to be measured can be known according to following formula:
Wherein, GL is the luminance gain of gleam image intensifier to be measured, I
qfor drive current, I
outfor corresponding and drive current I
qoutput current, S
1for the useful area of photocathode, S
2for fluoroscopic useful area, F is the anode sensitivity of anodic sensitivity of photomultiplier tube, and η is the product of the light efficiency of light source and the attenuation rate of attenuator.
The equivalent background illumination of gleam image intensifier to be measured can be known according to following formula:
Wherein, E
befor the equivalent background illumination of gleam image intensifier to be measured, I
out' for gleam image intensifier to be measured is without when irradiating, output current when namely drive current is zero.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a gleam image intensifier characteristic test system, it is characterized in that, comprise same optical axis and be set in turn in light source, attenuator, gleam image intensifier to be measured and photomultiplier in sealing bore, the photocathode of described gleam image intensifier to be measured is towards described attenuator, and the face of described gleam image intensifier to be measured is to described photomultiplier transit light pipe; Also comprise Test Host, described Test Host comprises the driving power of the brightness of adjustable described light source and measures the measuring instrument of described photomultiplier output current; Described light source is electrically connected with described driving power, and described photomultiplier is electrically connected with described measuring instrument.
2. a kind of gleam image intensifier characteristic test system according to claim 1, is characterized in that, described driving power comprise the numerical value of the drive current for light source described in display driver the first display screen and for regulating the adjusting knob of the size of drive current.
3. a kind of gleam image intensifier characteristic test system according to claim 2, it is characterized in that, described first display screen and adjusting knob are arranged at the front panel of described Test Host.
4. a kind of gleam image intensifier characteristic test system according to claim 3, it is characterized in that, described first display screen is arranged at the top of described adjusting knob.
5. a kind of gleam image intensifier characteristic test system according to claim 1, is characterized in that, described measuring instrument comprises the second display screen of the numerical value for showing described output current and the switching push button for the unit of display that switches described output current.
6. a kind of gleam image intensifier characteristic test system according to claim 5, it is characterized in that, described second display screen and switching push button are arranged at the front panel of described Test Host.
7. a kind of gleam image intensifier characteristic test system according to claim 6, it is characterized in that, described second display screen is arranged at the top of described switching push button.
8. according to the arbitrary described a kind of gleam image intensifier characteristic test system of claim 1 to 7, it is characterized in that, shown Test Host also comprises rear panel, described rear panel is provided with power interface, switch, light source interface, photo-multiplier current interface and photomultiplier high voltage interface; Described Test Host electrically connects as described Test Host by described power interface and city and powers, the confession power-off of Test Host described in described switch control rule, described light source realizes being electrically connected by described light source interface with described driving power, and described photomultiplier realizes being electrically connected by described photo-multiplier current interface and photomultiplier high voltage interface with described measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520976327.2U CN205157169U (en) | 2015-11-30 | 2015-11-30 | Shimmer image intensifier characteristic test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520976327.2U CN205157169U (en) | 2015-11-30 | 2015-11-30 | Shimmer image intensifier characteristic test system |
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| CN205157169U true CN205157169U (en) | 2016-04-13 |
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| CN201520976327.2U Expired - Fee Related CN205157169U (en) | 2015-11-30 | 2015-11-30 | Shimmer image intensifier characteristic test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489941A (en) * | 2018-11-15 | 2019-03-19 | 北方夜视技术股份有限公司 | Gleam image intensifier test macro |
-
2015
- 2015-11-30 CN CN201520976327.2U patent/CN205157169U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489941A (en) * | 2018-11-15 | 2019-03-19 | 北方夜视技术股份有限公司 | Gleam image intensifier test macro |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430000 Optics Valley City, Hubei Province, East Lake hi tech Development Zone, No. 111 Optics Valley Avenue, 1-02 core technology center, building No. 3, building No., No. 303 Patentee after: WUHAN GUANGCHI EDUCATION & TECHNOLOGY CO.,LTD. Address before: 430000 Optics Valley center, Optics Valley Avenue, East Lake high tech Zone, Hubei, Wuhan, China, 111 Patentee before: WUHAN GUANGCHI TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20211130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |