CN203038546U - Spectrometer digitalized reading device - Google Patents
Spectrometer digitalized reading device Download PDFInfo
- Publication number
- CN203038546U CN203038546U CN 201320025635 CN201320025635U CN203038546U CN 203038546 U CN203038546 U CN 203038546U CN 201320025635 CN201320025635 CN 201320025635 CN 201320025635 U CN201320025635 U CN 201320025635U CN 203038546 U CN203038546 U CN 203038546U
- Authority
- CN
- China
- Prior art keywords
- spectrometer
- grid
- reading device
- transducer
- digital capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model relates to a spectrometer digitalized reading device comprising a spectrometer system and a reading system. The spectrometer system comprises a parallel light tube capable of generating parallel light, a telescope capable of receiving the parallel light, an object carrying table capable of carrying optical elements, and a pedestal used for stable supporting. The reading system comprises a digital type capacitive gate transducer, an alidade, and a dial capable of rotating with the telescope together. The digital type capacitive gate transducer can be used to measure a deflection angle of the light. The spectrometer digitalized reading device is advantageous in that experimental angle data can be conveniently and accurately read, the manual operation errors of students can be reduced, the zero-crossing problem of the dial can be thoroughly solved, and the data processing accuracy can be improved; during the teaching process, the experimental contents can be changed according to the experimental requirements in a real-time manner, therefore the device is convenient and simple.
Description
Technical field
The utility model relates to a kind of spectrometer digitizing reading device, belongs to the Experiment of College Physics instrument field.
Background technology
Spectrometer is the instrument of accurately measuring the light deflection angle.Many fundamental physical quantities in the optics can show as the deflection angle of light directly or indirectly such as wavelength, refractive index etc., so utilize spectrometer can measure wavelength, refractive index, can also accurately measure the interplanar angle of optics in addition.What present domestic most of colleges and universities adopted all is traditional spectrometer experiment instrument, and reading device is traditional mechanical type index dial.When traditional spectrometer dispatches from the factory, the index dial plane has been transferred to vertical with the instrument rotating shaft and fixed.Dial disc is divided into 360 degree, and minimum division value is half degree.Numerical value less than half degree can be read at vernier, two verniers plate edge diameter direction in black, and vernier is divided into 30 little lattice.Alidade is general to be connected with objective table, can be around instrument rotating shaft rotation, and there is the screw can the stop alidade.The dial disc number reading method is similar to the number reading method of vernier caliper.In order to eliminate the centering error between index dial and the spectrometer central axis, at the two ends of the same diameter of index dial a vernier is housed respectively.During measurement, two verniers are all answered reading, calculate the poor of twice reading of each vernier then, average again.This mean value can be used as the angle that telescope (or objective table) turns over, and has eliminated centering error.Yet years of teaching practice proves, there is following major defect in traditional mechanical type index dial: (1) in experiment in order to reduce environment light source to the influence of experiment, requirement of experiment operating personnel test in darker environment, like this reading of index dial angle numerical value have just been had certain difficulty.(2) because the student's ratio of colleges and universities' myopia is more at present, and the vernier reading of traditional mechanical type index dial is very little at interval, reading the telescope deflection angle so also has certain difficulty concerning this part classmate, and also there is certain degree of difficulty in the processing of groove concerning production firm.(3) student requires re-adjustments constantly in the process of reading, observes by telescope, reads dial reading, and repeatable operation is easy to produce visual fatigue and to the angle read error.(4) thus a part of student divides XX degree XX and misreads into XX point XX degree generation error in reading sometimes.When (5) measuring some light deflection angle, because index dial " zero passage " problem, namely vernier revolves the computational problem that numerical value changes from small to big and brings behind the zero passage scale mark.
The utility model content
The utility model namely proposes at above-mentioned shortcoming, particularly, the utility model provides a kind of spectrometer digitizing reading device, comprise spectrometer system and frame of reference, wherein said spectrometer system comprises the objective table of the parallel light tube that produces directional light, the telescope that receives directional light, bearing optical element and is used for providing the base of stable support; Described frame of reference comprises digital capacitor grid transducer, alidade and the index dial that can rotate with telescope; Digital capacitor grid transducer is used for measuring the deflection angle of light;
According to spectrometer digitizing reading device of the present utility model, digital capacitor grid transducer comprises moving grid and fixed grid, and fixed grid is installed in the circular arc inboard of digital capacitor grid transducer over against the side, outer of index dial, and moving grid is installed in the side, outer of index dial.
According to spectrometer digitizing reading device of the present utility model, screening electrode is arranged on the fixed grid, emitter and public receiving pole are arranged on the moving grid; Arrange a plurality of emission pole pieces on the moving grid, and public receiving pole is arranged; Arrange a plurality of reflecting electrode sheets on the fixed grid.
According to spectrometer digitizing reading device of the present utility model, described digital capacitor grid transducer also comprises central processing unit, change-over circuit and display screen.
According to spectrometer digitizing reading device of the present utility model, digital capacitor grid transducer has two, is fastened on respectively on the diameter direction of alidade; During measurement, read shown angle value on two digital capacitor grid transducers, get that it is average.
The beneficial effects of the utility model are: by the digitized dial reading device of the utility model, can make things convenient for and read the experimental viewpoint data accurately, reduce personal error in student's operation, thoroughly solved index dial " zero passage " problem, improve data processing precision.In teaching process, can change experiment content in real time according to requirement of experiment, simple, convenient.
Description of drawings
Fig. 1 is the one-piece construction figure of the utility model embodiment.
Fig. 2 is the scheme of installation of the utility model embodiment.
Fig. 3 is the work synoptic diagram of the utility model embodiment.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the digitizing reading device of the spectrometer that the utility model provides comprises spectrometer system and frame of reference (6), described spectrometer system comprises by the parallel light tube that can produce directional light (3), can receive the objective table (4) of the telescope (2) of directional light and bearing optical element and the base (1) of stable support is provided for above-mentioned device, equipped frame of reference (6) in this spectrometer system, this frame of reference 6) comprises digital capacitor grid transducer (5), alidade (8) and the index dial (7) that can rotate with telescope (2) wherein be come the deflection angle of light in the experiments of measuring by digital capacitor grid transducer (5).Wherein three thin teeth screws are equipped with in the table top of objective table below, are used for adjusting the degree of tilt of table top; Digital capacitor grid transducer (5) is fastened on the diameter direction of alidade (8).In an example of the present utility model, the number of the digital capacitor grid transducer (5) of use is 2, is fastened on respectively on the diameter direction of alidade (8); During measurement, read these two digital capacitor grid transducers (5) and go up shown angle value, get that it is average, can eliminate eccentric error.
The effect of parallel light tube is to produce directional light.End at its cylindrical tube is equipped with a telescopic sleeve, and barrel end has a slit, and the other end of tube is equipped with the achromat group.Flexible slit arrangement, when making on its focal plane that just is positioned at lens, parallel light tube is with regard to the outgoing directional light.Can change slit width by regulating the slit width adjusting screw by regulating the direction of parallel light tube optical axis adjusted leveling screws and parallel light tube optical axis elevation angle adjusting screw change parallel light tube optical axis, change the incident beam width.
Telescope is used for observing and locating tested light, normally a cylinder of being made up of with the cross scale mark object lens, autocollimating eyepiece and measurement.The light of illumination miniature bulb enters from the tube side, illuminates the Lower Half cross scale mark on the graticule after little prism reflection.Distance between cross scale mark direction, eyepiece and object lens is all adjustable, and when cross hair was positioned on the focal plane of lens, the light that cross hair sends became directional light behind object lens.This directional light focuses on the reticule plane through object lens after the double-sided reflecting mirror reflection again, forms the picture (green) of crosshair.After telescope mixes up, from eyepiece, can see " ten " word picture of cross scale mark and cross hair simultaneously clearly, and no parallax between the two.In addition, can be by regulating the direction of the horizontal adjusting screw change of telescope optic axis elevation angle adjusting screw and telescope optic axis telescope optic axis.
The digitizing frame of reference of present embodiment is by the digital capacitor grid transducer (5) on the diameter direction that is fastened on alidade (8), alidade (8) and can be formed with the index dial (7) that telescope (2) rotates.Wherein digital capacitor grid transducer (5) is fastened on the diameter direction of alidade (8) with screw (9).Digital capacitor grid transducer (5) comprises moving grid and fixed grid, screening electrode is arranged on the fixed grid, emitter and public receiving pole are arranged on the moving grid, concrete, arrange a plurality of measure-alike, emission pole pieces that width is l at moving grid, and public receiving pole is arranged, evenly distributed a plurality of measure-alike, width and gap respectively are the reflecting electrode sheet of 4l on the fixed grid, electrical isolation mutually between each electrode slice.Fixed grid is installed in the circular arc inboard of digital capacitor grid transducer (5) over against the side, outer of index dial (7), and moving grid is installed in the side, outer of index dial (7).The electrode of moving grid and fixed grid is unilateral relative, parallel installation.When emitting electrode sheet respectively in addition during different driving voltage, produce electric charge by capacitive coupling at the reflection pole piece, produce electric charge output by electric capacity at public receiving pole again.Capacitive displacement transducer is based on the capacitive transducer of variable area principle of work, and the arrangement of its electrode is equivalent to the parallel connection of a plurality of capacitor sensor with changed area as palisade.When measuring the light deflection angle, operating personnel rotate telescope (2), and index dial (7) rotates with telescope (2).And digital capacitor grid transducer (5) is fastened on the diameter direction of alidade (8), and is motionless with respect to the spectrometer monolithic stability with alidade (8).When the moving grid of index dial (7) moves with respect to fixed grid, the outer arc length mechanical displacement of index dial (7) changes the variation of capacitance into, transform the respective change amount that obtains electric signal by change-over circuit, handle by the central processing unit that digital capacitor grid transducer (5) is inner, obtain the outer arc length mechanical displacement I. of index dial (7)
By arc length formula: I=n π R/180 obtains the deflection angle of light
Wherein R is the radius of index dial (7);
To calculate light deflection angle n at last is presented on the display screen of digital capacitor grid transducer (5) so that operator's reading.
Claims (5)
1. spectrometer digitizing reading device, comprise spectrometer system and frame of reference (6), it is characterized in that: described spectrometer system comprises the objective table (4) of the parallel light tube (3) that produces directional light, the telescope (2) that receives directional light, bearing optical element and is used for providing the base (1) of stable support; Described frame of reference (6) comprises digital capacitor grid transducer (5), alidade (8) and the index dial (7) that can rotate with telescope (2); Digital capacitor grid transducer (5) is used for measuring the deflection angle of light.
2. spectrometer digitizing reading device according to claim 1, it is characterized in that: digital capacitor grid transducer (5) comprises moving grid and fixed grid, fixed grid is installed in the circular arc inboard of digital capacitor grid transducer (5) over against the side, outer of index dial (7), and moving grid is installed in the side, outer of index dial (7).
3. spectrometer digitizing reading device according to claim 2 is characterized in that: screening electrode is arranged on the fixed grid, emitter and public receiving pole are arranged on the moving grid; Arrange a plurality of emission pole pieces on the moving grid, and public receiving pole is arranged; Arrange a plurality of reflecting electrode sheets on the fixed grid.
4. spectrometer digitizing reading device according to claim 2, it is characterized in that: described digital capacitor grid transducer (5) also comprises central processing unit, change-over circuit and display screen.
5. spectrometer digitizing reading device according to claim 1, it is characterized in that: digital capacitor grid transducer has two, is fastened on respectively on the diameter direction of alidade (8); During measurement, read two digital capacitor grid transducers (5) and go up shown angle value, get that it is average.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025635 CN203038546U (en) | 2013-01-17 | 2013-01-17 | Spectrometer digitalized reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025635 CN203038546U (en) | 2013-01-17 | 2013-01-17 | Spectrometer digitalized reading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038546U true CN203038546U (en) | 2013-07-03 |
Family
ID=48690644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025635 Expired - Lifetime CN203038546U (en) | 2013-01-17 | 2013-01-17 | Spectrometer digitalized reading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093676A (en) * | 2013-01-17 | 2013-05-08 | 山西省电力公司大同供电分公司 | Spectrometer digitalized reading device |
-
2013
- 2013-01-17 CN CN 201320025635 patent/CN203038546U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093676A (en) * | 2013-01-17 | 2013-05-08 | 山西省电力公司大同供电分公司 | Spectrometer digitalized reading device |
| CN103093676B (en) * | 2013-01-17 | 2015-02-18 | 山西省电力公司大同供电分公司 | Spectrometer digitalized reading device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103093676B (en) | Spectrometer digitalized reading device | |
| CN104296693B (en) | System and method for detecting orthogonality of precision shafting | |
| CN1719192A (en) | Bidimension photoelectric self collimating device based on optical length multiplication compensation method and its measuring method | |
| CN207472217U (en) | A kind of part parallelism detector | |
| CN104317030A (en) | Optical device capable of achieving quick centering assistance by means of axial chromatic aberration | |
| CN106871822B (en) | Spectrometer capable of measuring micro rotation angle of collimator and measuring method | |
| CN202938797U (en) | Spectrometer angle-disc reading apparatus | |
| CN203038546U (en) | Spectrometer digitalized reading device | |
| CN204008076U (en) | A kind of optical system general performance test | |
| CN203259473U (en) | Refractivity measuring device | |
| CN204390574U (en) | Based on the spectrometer of CCD imaging | |
| CN202939894U (en) | Digitization high-precision spectrometer horizontal adjustment apparatus | |
| CN108072357A (en) | There is the spirit level and its application method of the measurement of instrument high precision | |
| CN103630090B (en) | High resolution double shaft autocollimator system | |
| CN102879882B (en) | Apparatus for assembling and correcting lens group based on coaxiality conversion | |
| CN206514844U (en) | Electronic level with instrument height real―time precision measurment function | |
| CN212989163U (en) | Device for measuring refractive index of transparent flat medium | |
| US2830488A (en) | Interferential measuring device | |
| CN206514843U (en) | The spirit level of function is measured with instrument high precision | |
| CN203519905U (en) | Two-dimension adjusting device for cylindrical lens light path | |
| CN201233246Y (en) | Collimator optical wedge micrometer | |
| CN212621142U (en) | Capacitive biprism interference experiment measuring device | |
| Washer et al. | Calibration of precision airplane mapping cameras | |
| CN109520412A (en) | Micro angle measurement system based on adjustable condenser | |
| RU2548575C2 (en) | Device for measurement of angle of slanted surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |