CN203203780U - Digital measuring device for measuring optical fiber plate numerical aperture - Google Patents
Digital measuring device for measuring optical fiber plate numerical aperture Download PDFInfo
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- CN203203780U CN203203780U CN 201320032781 CN201320032781U CN203203780U CN 203203780 U CN203203780 U CN 203203780U CN 201320032781 CN201320032781 CN 201320032781 CN 201320032781 U CN201320032781 U CN 201320032781U CN 203203780 U CN203203780 U CN 203203780U
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- photomultiplier
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- fibre faceplate
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Abstract
The utility model discloses a digital measuring device for measuring an optical fiber plate numerical aperture. The digital measuring device comprises a light source module, a diffused light module, a photomultiplier acquisition module and a data processing module. An optical fiber module (6) to be measured is positioned between the diffused light module and the photomultiplier acquisition module. The power source module comprises a power source (1) and a light collecting mirror (2). The diffused light module comprises an integrating sphere (3) and a mobile station (4). The photomultiplier acquisition module comprises a photomultiplier (5). The data processing module comprises a single-chip machine (7) and a computer (8). The single-chip machine (7) is connected with a serial port of the computer (8). The photomultiplier is controlled by the computer so that a photon number can be automatically acquired. Meanwhile, the corresponding numerical aperture can be measured based on a given photon pass rate.
Description
Technical field
The utility model belongs to optical technical field, is specifically related to a kind of measurement mechanism of digital measurement fibre faceplate numerical aperture.
Background technology
Fibre faceplate is a kind of novel transmission light and the element of picture information, closes element as window and misfortune and obtained widespread use in image intensifier and low-light camera tube.It is to fuse the face battle array that forms by the superfine glass fiber that has guiding property in a large number under High Temperature High Pressure.In order to transmit light and picture information effectively, require optical fibre face plate to have big as far as possible light collecting light ability, numerical aperture is exactly the important parameter that characterizes the optical fibre face plate light collecting light ability.Therefore, the measurement to the fibre faceplate numerical aperture seems most important.Stipulate in the world: shine fibre faceplate with diffused light, survey the transmitance under virgin its all angles, when transmitance drops to a certain number percent (being generally 50 %) of axial maximum transmission, corresponding angle block gauge is decided to be the numerical aperture angle of fibre faceplate, its sine value is numerical aperture NA, in the current techniques device, though the experimental provision of measuring optical fiber panel numerical aperture is arranged, but complex operation, test data needs manual the processing, efficient is low, and poor repeatability, precision are difficult to obtain assurance and have the circuit complexity, function is less, test result can not be kept in the device, can not react the problems such as relation of numerical aperture and projection ratio intuitively.The fibre faceplate numerical aperture can be measured the refractive index of core material and cladding respectively on refractometer, according to
Calculate, but since end face reflection, factors such as the defective of fibre structure, and result of calculation is not accurate enough.Usually adopt actual measurement to determine the numerical aperture of fibre faceplate.
The utility model content
In order to solve the above-mentioned technical matters that exists in the prior art, the utility model provides a kind of measurement mechanism of digital measurement fibre faceplate numerical aperture, comprise light source module, diffused light module, photomultiplier acquisition module and data processing module, the testing fiber module is arranged between diffused light module and the photomultiplier acquisition module.
Further, described light source module comprises light source and condenser.
Further, described diffused light module comprises integrating sphere and transfer table.
Further, described photomultiplier acquisition module comprises photomultiplier.
Further, described data processing module comprises single-chip microcomputer and computing machine, and described single-chip microcomputer is connected with serial ports of computers.
Further, described single-chip microcomputer is the single-chip microcomputer that is built-in with the AD circuit.
Compare with conventional apparatus, the utility model possesses following characteristics:
1, can be by the automatic collection of computer control photomultiplier realization to photon number;
2, can measure corresponding numerical aperture according to given photon percent of pass;
3, can pass through the corresponding curve of numerical aperture (NA) and transmissivity, show the corresponding relation of numerical aperture and the transmissivity of testing sample intuitively;
4, can carry out the operation of database, preserve corresponding data;
5, can realize printing and preserving numerical aperture (NA) and transmissivity corresponding relation curve map.
Description of drawings
Fig. 1 is the measurement mechanism structural representation of digital measurement fibre faceplate numerical aperture of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the measurement mechanism of digital measurement fibre faceplate numerical aperture of the present utility model comprises light source module, diffused light module, photomultiplier acquisition module and data processing module.
Described light source module comprises light source 1 and condenser 2, what light source 1 adopted is bromine tungsten filament lamp, bromine tungsten filament lamp is that the perfect light source of Visible-to-Near InfaRed wave band can be carried out absorption spectrum and fluorescent spectroscopy to material, give light source power supply with high stability, high-precision 800mA constant-current source again, make light source output light intensity and colour temperature stable, with accuracy and the stability that guarantees to measure.Utilize projection ratio greater than 85%, focal length concentrates directive diffused light module for the SK.02-SKLM lens of 1cm with light.
The diffused light module comprises integrating sphere 3 and transfer table 4, and separating bulbs 3 adopts has the highly reflective inside surface, and light source 1 is penetrated the even diffusion of light that comes after condenser 2 focuses on, and integrating sphere 3 is fixed on can the horizontal vertical shift moving transfer table 4.Transfer table 4 utilizes step motor control, uses the calculating function to send signal controlling transfer table 4 and moves, so that control integrating sphere 3 can project the light of different angles, and has strengthened the automatic capability of this equipment, makes this equipment operate more fast and raise the efficiency.
The photomultiplier acquisition module comprises photomultiplier 5, collect the light of different angles by arriving the photon number of photomultiplier 5 after the collimator by rotating corresponding diffusion integrating sphere 3, process realizes the corresponding relation of corresponding numerical aperture and transmissivity to the collection of the number of the photon number of different angles and angle correspondence.In limited zone, can measure testing fiber panel 6 with the center corresponding curve of numerical aperture and transmissivity at any angle.Photomultiplier 5 is the elements that photon number converted to electric signal, can gather 0 to 100 0,000 0000 photon number, satisfies the needs of this equipment.
Data processing module comprises single-chip microcomputer 7 and computing machine 8, and this measurement mechanism utilizes the WT56F216 single-chip microcomputer to make conversion equipment, makes computing machine 8 can control the real-time collection of photomultiplier 5 and the rotation of transfer table 3 of control integrating sphere.WT56F216 single-chip microcomputer built in A/D converter has been simplified circuit structure, has improved measuring stability.WT56F216 is connected communication with serial ports of computers, the calculating function is controlled fibre faceplate numerical aperture device in real time.
The measurement mechanism workflow of digital measurement fibre faceplate numerical aperture of the present utility model is as follows:
At first started shooting preheating about 10 minutes, in order to allow light source 1 send stable light.Earlier initialization is carried out in integrating sphere 3 positions before measuring and track is set, and with the part of data acquisition initialization of photomultiplier 5.After computing machine 8 was given an order to single-chip microcomputer 7, single-chip microcomputer 7 can carry out corresponding control to circuit by response command.Set the angle of transfer table 4 then, make this measurement mechanism can enter operate as normal.The illumination that light source 1 sends after beginning to test is mapped on the integrating sphere 3, arrives photomultipliers 5 for the photomultiplier collection by the light transmission testing fiber panel 6 after integrating sphere 3 diffusions.The signal that photomultiplier 5 collects is passed to computing machine 8 pre-service after with analog to digital conversion.Calculate by numerical aperture and transmissivity again and carry out data display operation and show this measurement result.
In the time of need be to data analysis, at the data analysis plate, can given transmissivity ask for corresponding NA.This part is to carry out on the basis of the data of collection previous stage.It is according to given transmissivity then in front collect do not add sample and add the data of sample among seek corresponding occurrence, and then try to achieve the angle of corresponding left-half and right half part, calculate numerical aperture, and calculate its mean value.Draw out curve according to the corresponding relation between numerical aperture and the transmissivity.Perhaps given numerical aperture (NA) is asked for corresponding transmissivity.This part is to carry out on the basis of the data of collection previous stage.It is at first to calculate its corresponding angle according to given numerical aperture (NA), then about two parts seek its angle, and demonstrate its corresponding transmittance values.Draw out curve according to the corresponding relation between numerical aperture and the transmissivity.Also or the input in the standard figures aperture thought of user.Thereby the NA value of this transmissivity correspondence that this part mainly is the user to be asked by the transmissivity of the numerical aperture correspondence of importing its standard of thinking, it is used as the standard figures aperture of this measurement.After analysis is finished data are preserved, or data result is generated report printing to come out.
Shown in the above and the figure only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. the measurement mechanism of a digital measurement fibre faceplate numerical aperture, comprise light source module, diffused light module, photomultiplier acquisition module and data processing module, it is characterized in that: testing fiber module (6) is arranged between diffused light module and the photomultiplier acquisition module.
2. the measurement mechanism of digital measurement fibre faceplate numerical aperture as claimed in claim 1, it is characterized in that: described light source module comprises light source (1) and condenser (2).
3. the measurement mechanism of digital measurement fibre faceplate numerical aperture as claimed in claim 1, it is characterized in that: described diffused light module comprises integrating sphere (3) and transfer table (4).
4. the measurement mechanism of digital measurement fibre faceplate numerical aperture as claimed in claim 1, it is characterized in that: described photomultiplier acquisition module comprises photomultiplier (5).
5. the measurement mechanism of digital measurement fibre faceplate numerical aperture as claimed in claim 1, it is characterized in that: described data processing module comprises single-chip microcomputer (7) and computing machine (8), described single-chip microcomputer (7) is connected with computing machine (8) serial ports.
6. the measurement mechanism of digital measurement fibre faceplate numerical aperture as claimed in claim 5, it is characterized in that: described single-chip microcomputer (7) is the single-chip microcomputer that is built-in with the AD circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032781 CN203203780U (en) | 2013-01-22 | 2013-01-22 | Digital measuring device for measuring optical fiber plate numerical aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032781 CN203203780U (en) | 2013-01-22 | 2013-01-22 | Digital measuring device for measuring optical fiber plate numerical aperture |
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| Publication Number | Publication Date |
|---|---|
| CN203203780U true CN203203780U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320032781 Expired - Fee Related CN203203780U (en) | 2013-01-22 | 2013-01-22 | Digital measuring device for measuring optical fiber plate numerical aperture |
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| Country | Link |
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| CN (1) | CN203203780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558011A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Experimental device for measuring numerical apertures and attenuation coefficients of light-guide fibers |
| CN104535177A (en) * | 2014-12-29 | 2015-04-22 | 苏州优谱德精密仪器科技有限公司 | Detection device for measuring near-infrared light numerical aperture |
-
2013
- 2013-01-22 CN CN 201320032781 patent/CN203203780U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558011A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Experimental device for measuring numerical apertures and attenuation coefficients of light-guide fibers |
| CN103558011B (en) * | 2013-10-23 | 2015-11-04 | 国家电网公司 | A kind of experimental facilities measuring fibre-optic numerical aperture and attenuation coefficient |
| CN104535177A (en) * | 2014-12-29 | 2015-04-22 | 苏州优谱德精密仪器科技有限公司 | Detection device for measuring near-infrared light numerical aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU YAXIONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHINA JILIANG UNIVERSITY Effective date: 20141229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141229 Address after: 310018 room 12, building 1201, Yifu science and Technology Institute, modern science and Technology Institute of China Jiliang University, Hangzhou economic and Technological Development Zone, Zhejiang, China Patentee after: Hangzhou Asia Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park source Street No. 258 Patentee before: China Jiliang University |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |