CN112556846A - Optical fiber spectrometer and implementation method - Google Patents
Optical fiber spectrometer and implementation method Download PDFInfo
- Publication number
- CN112556846A CN112556846A CN202011327034.3A CN202011327034A CN112556846A CN 112556846 A CN112556846 A CN 112556846A CN 202011327034 A CN202011327034 A CN 202011327034A CN 112556846 A CN112556846 A CN 112556846A
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- Prior art keywords
- seat
- grating
- detector
- holes
- adjusting
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- 238000000034 method Methods 0.000 title claims description 15
- 239000013307 optical fiber Substances 0.000 title abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 7
- UFNIBRDIUNVOMX-UHFFFAOYSA-N 2,4'-dichlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1Cl UFNIBRDIUNVOMX-UHFFFAOYSA-N 0.000 description 4
- 238000010183 spectrum analysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0202—Mechanical elements; Supports for optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
Abstract
The invention discloses an optical fiber spectrometer, which comprises a grating seat and a detector seat, wherein one side of the grating seat is provided with a grating, six adjusting holes are symmetrically formed in the grating seat, six screw grooves are formed in the surface of the grating corresponding to the adjusting holes, the grating seat and the grating penetrate through the adjusting holes and extend into the screw grooves for fixing through adjusting fixing screws, a rotating shaft is arranged at the upper part of the middle position of the grating seat and the grating, a square groove is formed in the detector seat, a detector is arranged in the square groove, a PCB (printed circuit board) is arranged on the surface of the detector, threaded holes are formed in the four corners of the PCB, threaded grooves matched with the threaded holes for use are formed in the surface of the detector seat, and a mounting seat is arranged at; the installation of grating lateral wall through the design, and adjusting screw and set screw all are perpendicular with the axis of rotation in the side for no matter the grating is when fixed or rotate the debugging when can not the off-axis, lateral wall department wall thickness is even and can guarantee that thickness intensity is reliable.
Description
Technical Field
The invention belongs to the technical field of fiber optic spectrometers, and particularly relates to a fiber optic spectrometer and an implementation method thereof.
Background
The optical fiber spectrometer can perform spectral analysis on a polychromatic light signal input by an optical fiber to obtain the intensity of light with different wavelengths. The optical fiber spectrometer has small volume and convenient use, can be integrated in a system as a core module to realize the function of spectral analysis, has wide application prospect, and generally comprises the following structures: the device comprises an optical fiber base, an incident slit, a diaphragm, a concave reflector, a grating, a CCD detector and the like. Spectral resolution and sensitivity are key indicators of spectrometer performance, both of which are closely related to the position and angle of the optical elements. The optical elements are required to be mounted and fixed in a manner that the optical elements have good adjusting performance, the position and the angle of the optical elements can meet the design requirements, and the optical elements can be kept stable for a long time after being fixed and do not deviate along with the change of the environmental temperature. Therefore, high requirements are put on the mounting and fixing mode of the optical element in the optical fiber spectrometer;
the traditional mode is that screws and glue are adopted to adjust and fix an optical element, the adjusting precision is small, the operation is difficult, the stability is poor, gratings in the optical fiber spectrometer are installed on a grating seat firstly, and then the angle of the gratings is adjusted and fixed through two screws at the bottom of the grating seat, the grating seat is easy to incline, the grating groove direction is not perpendicular to the light path plane, meanwhile, in order to ensure that the bottom surface of the spectrometer is flat, a groove sinking head needs to be dug at the position of the grating seat fixing screw at the bottom surface of the spectrometer, the structural strength is weakened, and the spectrometer shell is easy to deform under the influence of temperature or external force;
another major disadvantage of installing the grating seat on the bottom surface is that a screwdriver needs to be used for propping the grating seat from the bottom surface to rotate, so that the debugging is not convenient, the grating seat is easy to bear force and deflect, and a fastened grating fixing screw is exposed outside a shell and is easy to be accidentally touched.
Disclosure of Invention
The present invention is directed to a fiber optic spectrometer and a method for implementing the same, which solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: an optical fiber spectrometer comprises a grating seat and a detector seat, wherein one side of the grating seat is provided with a grating, six adjusting holes are symmetrically formed in the grating seat, six screw grooves are formed in the surface of the grating corresponding to the adjusting holes, the grating seat and the grating penetrate through the adjusting holes through adjusting fixing screws and extend into the screw grooves to be fixed, a rotating shaft is arranged at the upper part of the middle position of the grating seat and the upper part of the grating, a square groove is formed in the detector seat, a detector is arranged in the square groove, a PCB (printed circuit board) is arranged on the surface of the detector, threaded holes are formed in the four corners of the PCB, threaded grooves matched with the threaded holes for use are formed in the surface of the detector seat, a mounting seat is arranged at one end part of the detector seat, positioning holes and fastening holes are formed in the mounting seat at intervals, and an end block is arranged at the corner, and the end block is provided with a fastening screw hole.
Preferably, a strip-shaped groove is formed in the surface of the mounting seat, which is close to the detector seat, and arc-shaped pore channels are formed in the four corners of the square groove.
Preferably, the positioning holes and the fastening screw holes are respectively provided with two, and the mounting seat and the detector seat are integrally formed.
Preferably, the side face and the lower part of the grating seat are both provided with limiting plates, and the inner side faces of the limiting plates are attached to the gratings.
Preferably, one side surface of the grating seat, which is far away from the grating, is in an arc shape.
A method for realizing a fiber spectrometer comprises the following installation steps:
s1, placing the grating between the grating seat and the two limit plates, wherein the grating, the grating seat and the limit plates are in contact with each other, the screw groove on the surface of the grating is aligned with the adjusting hole, and then the adjusting fixing screw passes through the adjusting hole and enters the screw groove to complete installation;
s2, placing the grating seat in a square groove formed in the detector seat, aligning the threaded hole in the PCB with the threaded groove on the surface of the detector seat, passing the threaded hole through a screw to enter the threaded groove to complete the installation of the detector seat, the detector and the PCB, locking the detector seat, and matching with the spectrometer.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the installation of the designed grating side wall, the cambered surface of the side wall and the cambered surface of the back side of the grating seat are matched surfaces and are coaxial with the rotating shaft of the grating, and the adjusting screw and the fixing screw are vertical to the rotating shaft on the side surface, so that the grating cannot be off-axis in the fixing process or the rotating debugging process, the wall thickness at the side wall is uniform, the thickness strength can be ensured to be reliable, the capability of resisting the influence of external force or temperature is stronger, and an additional protection part is arranged on the outer side after the grating is fixed, so that accidental.
2. According to the invention, the detector and the detector seat in the detector seat are directly positioned by using the front surface of the detector in a mode of installing the CCD detector by using the detector seat, so that the use of PCB (printed Circuit Board) switching is avoided, the error influence of the PCB and the plug connector is eliminated, the detector seat and the cavity are matched by using the positioning column, the positioning pin and the fastening screw, the positioning is accurate and tight, the unused detector seat is used in the configuration of different wave bands, the adjustment is not needed through the structural positioning, the efficiency is improved, and the precision is improved.
Drawings
FIG. 1 is a schematic view of a front view structure of the grating installation of the present invention;
FIG. 2 is a schematic view of a rear view of the grating installation structure of the present invention;
FIG. 3 is a schematic view of the elevational structure of the detector base of the present invention;
FIG. 4 is a rear view of the detector base of the present invention;
FIG. 5 is a schematic diagram of a detector of the present invention;
in the figure: 1. a grating seat; 2. a grating; 3. a rotating shaft; 4. adjusting the fixing screw; 5. fastening a screw hole; 6. a detector base; 7. a detector; 8. a PCB circuit board; 9. and (7) positioning the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an optical fiber spectrometer comprises a grating seat 1 and a detector seat 6, wherein one side of the grating seat 1 is provided with a grating 2, six adjusting holes are symmetrically formed in the grating seat 1, six screw grooves are formed in the surface of the grating 2 corresponding to the adjusting holes, the grating seat 1 and the grating 2 penetrate through the adjusting holes and extend into the screw grooves for fixing through adjusting fixing screws 4, a rotating shaft 3 is arranged at the upper part of the middle position of the grating seat 1 and the grating 2, a square groove is formed in the detector seat 6, a detector 7 is arranged in the square groove, a PCB 8 is arranged on the surface of the detector 7, threaded holes are formed in the four corners of the PCB 8, a threaded groove matched with the threaded holes is formed in the surface of the detector seat 6, a mounting seat is arranged at one end part of the detector seat 6, positioning holes 9 and fastening screw holes 5 are formed in the mounting seat at intervals, and an end block is arranged at the corner of, and the end block is provided with a fastening screw hole 5.
Furthermore, a strip-shaped groove is formed in the surface of the mounting seat, which is close to the detector seat 6, and arc-shaped pore channels are formed in the four corners of the square groove.
Furthermore, two positioning holes 9 and two fastening screw holes 5 are respectively formed, and the mounting seat and the detector seat 6 are integrally formed.
Furthermore, the side and the lower part of the grating seat 1 are both provided with a limiting plate, and the inner side surface of the limiting plate is attached to the grating 2.
Furthermore, one side of the grating seat 1 away from the grating 2 is arc-shaped.
A method for realizing a fiber spectrometer comprises the following installation steps:
s1, placing the grating 2 between the grating seat 1 and the two limit plates, wherein the grating 2, the grating seat 1 and the limit plates are in contact with each other, the screw groove on the surface of the grating 2 is aligned with the adjusting hole, and then the adjusting fixing screw 4 passes through the adjusting hole and enters the screw groove to complete installation;
s2, the grating seat 1 is placed in a square groove formed in the detector seat 6, at the moment, a threaded hole in the PCB 8 is aligned with a threaded groove in the surface of the detector seat 6, a screw penetrates through the threaded hole to enter the threaded groove, the detector seat 6, the detector 7 and the PCB 8 are installed, and then the installation seat is locked and locked to be matched with a spectrometer.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a fiber optic spectrometer, includes grating seat (1) and detector seat (6), its characterized in that: one side of the grating seat (1) is provided with a grating (2), six adjusting holes are symmetrically formed in the grating seat (1), six screw grooves are formed in the surface of the grating (2) corresponding to the adjusting holes, the grating seat (1) and the grating (2) penetrate through the adjusting holes through adjusting fixing screws (4) to extend into the screw grooves to be fixed, a rotating shaft (3) is arranged on the upper portion of the middle position of the grating seat (1) and the middle position of the grating (2), a square groove is formed in the detector seat (6), a detector (7) is arranged in the square groove, a PCB (8) is arranged on the surface of the detector (7), threaded holes are formed in the four corners of the PCB (8), threaded grooves matched with the threaded holes are formed in the surface of the detector seat (6), and a mounting seat is arranged at one end of the detector seat (6), and the mounting seat is provided with positioning holes (9) and fastening screw holes (5) at intervals, the end block is arranged at the corner of one surface of the detector seat (6) far away from the mounting seat, and the fastening screw holes (5) are formed in the end block.
2. The fiber optic spectrometer of claim 1, wherein: a strip-shaped groove is formed in the surface of the mounting seat, which is close to the detector seat (6), and arc-shaped pore channels are formed in the four corners of the square groove.
3. The fiber optic spectrometer of claim 1, wherein: the positioning holes (9) and the fastening screw holes (5) are respectively provided with two, and the mounting seat and the detector seat (6) are integrally formed.
4. The fiber optic spectrometer of claim 1, wherein: limiting plates are arranged on the side face and the lower portion of the grating seat (1), and the inner side faces of the limiting plates are attached to the grating (2).
5. The fiber optic spectrometer of claim 1, wherein: one side surface of the grating seat (1) far away from the grating (2) is arc-shaped.
6. The implementation method of the fiber spectrometer is characterized by comprising the following installation steps:
s1, placing the grating (2) between the grating seat (1) and the two limit plates, wherein the grating (2), the grating seat (1) and the limit plates are in mutual fit contact, the screw groove on the surface of the grating (2) is aligned with the adjusting hole, and then the adjusting fixing screw (4) penetrates through the adjusting hole to enter the screw groove to complete installation;
s2, the grating seat (1) is placed in a square groove formed in the detector seat (6), at the moment, a threaded hole in the PCB (8) is aligned with a threaded groove in the surface of the detector seat (6), then a screw penetrates through the threaded hole to enter the threaded groove, the detector seat (6), the detector (7) and the PCB (8) are installed, and then the installation seat is locked and locked to be matched with a spectrometer for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327034.3A CN112556846A (en) | 2020-11-24 | 2020-11-24 | Optical fiber spectrometer and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327034.3A CN112556846A (en) | 2020-11-24 | 2020-11-24 | Optical fiber spectrometer and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112556846A true CN112556846A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011327034.3A Pending CN112556846A (en) | 2020-11-24 | 2020-11-24 | Optical fiber spectrometer and implementation method |
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| CN (1) | CN112556846A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040239931A1 (en) * | 2003-05-28 | 2004-12-02 | Hamamatsu Photonics K.K. | Photodetector and spectrometer using the same |
| CN201697902U (en) * | 2009-11-04 | 2011-01-05 | 北京普源精仪科技有限责任公司 | Liquid chromatograph with grating fixing bracket |
| CN205748635U (en) * | 2016-06-30 | 2016-11-30 | 杭州泽天科技有限公司 | Optical spectroscopic device |
| CN206399533U (en) * | 2016-12-08 | 2017-08-11 | 中科天融(北京)科技有限公司 | A kind of new micro light path of optical spectrometer adjusting means |
| CN207147961U (en) * | 2017-09-15 | 2018-03-27 | 杭州春来科技有限公司 | A kind of spectrometer |
| CN108020319A (en) * | 2016-10-31 | 2018-05-11 | 长春理工大学 | A kind of adjustable spectrometer shell of separate modular structure |
| CN210426771U (en) * | 2019-08-06 | 2020-04-28 | 南京波思途智能科技股份有限公司 | Optical fiber spectrometer structure convenient to adjust |
-
2020
- 2020-11-24 CN CN202011327034.3A patent/CN112556846A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040239931A1 (en) * | 2003-05-28 | 2004-12-02 | Hamamatsu Photonics K.K. | Photodetector and spectrometer using the same |
| CN201697902U (en) * | 2009-11-04 | 2011-01-05 | 北京普源精仪科技有限责任公司 | Liquid chromatograph with grating fixing bracket |
| CN205748635U (en) * | 2016-06-30 | 2016-11-30 | 杭州泽天科技有限公司 | Optical spectroscopic device |
| CN108020319A (en) * | 2016-10-31 | 2018-05-11 | 长春理工大学 | A kind of adjustable spectrometer shell of separate modular structure |
| CN206399533U (en) * | 2016-12-08 | 2017-08-11 | 中科天融(北京)科技有限公司 | A kind of new micro light path of optical spectrometer adjusting means |
| CN207147961U (en) * | 2017-09-15 | 2018-03-27 | 杭州春来科技有限公司 | A kind of spectrometer |
| CN210426771U (en) * | 2019-08-06 | 2020-04-28 | 南京波思途智能科技股份有限公司 | Optical fiber spectrometer structure convenient to adjust |
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