CN113203683A - Connecting device of detector in spectrometer - Google Patents
Connecting device of detector in spectrometer Download PDFInfo
- Publication number
- CN113203683A CN113203683A CN202110556822.8A CN202110556822A CN113203683A CN 113203683 A CN113203683 A CN 113203683A CN 202110556822 A CN202110556822 A CN 202110556822A CN 113203683 A CN113203683 A CN 113203683A
- Authority
- CN
- China
- Prior art keywords
- detector
- spectrometer
- inner frame
- light
- sealing
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 239000007779 soft material Substances 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 8
- 230000005855 radiation Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a connecting device of a detector in a spectrometer, wherein the periphery of a light inlet head of the detector is hermetically connected with an inner opening edge area of a sealing ring, an outer edge area of the sealing ring is hermetically connected with a hole edge of a light through hole formed in the wall of a spectrometer box body, the light inlet head of the detector is arranged at the light through hole, and the sealing ring is made of soft materials. The sealing washer chooses soft materials for use to be favorable to its to warp and keep sealing performance, another effect of soft sealing washer in this application is just favorable to the regulation of the light head gesture position of advancing of detector to reserve deformation probably and prerequisite, the outer marginal portion and the tank wall sealing connection of sealing washer, the interior mouth of sealing washer is also formed sealing connection along regional and advancing between the light head periphery of detector, so the beam path and the inside cavity of spectrum appearance box of advancing the light head are in the same clean environment.
Description
Technical Field
The invention belongs to the sealing and posture adjustment of a detector in a spectrometer.
Background
An infrared spectrometer is an instrument for analyzing molecular structures and chemical compositions by using the absorption characteristics of substances to infrared radiation with different wavelengths. An infrared spectrometer typically consists of a light source, monochromator, detector and computer processing information system. The optical splitter is classified into a dispersion type and an interference type. For a dispersion type double-light-path optical zero-balance infrared spectrophotometer, when a sample absorbs infrared radiation with certain frequency, the vibration energy level of molecules jumps, light with corresponding frequency in a transmitted light beam is weakened, and the intensity difference of corresponding radiation of a reference light path and a sample light path is caused, so that the infrared spectrum of a measured sample is obtained.
The detector in the existing spectrometer takes a CCD element as a core device, the detector as an independent element is mostly attached to a case which is arranged in a case chamber and mainly used for arranging a light path system, if the sealing performance of a spectrum is poor, the dustproof effect is poor, a light source is directly interfered, and the test result is changed. The sealing problem of the connection part of the detector and the case is solved simply, the adjusting mechanism for solving the problem of the connection part of the detector and the case is easy to solve, and the difficulty is that the connection of the detector and the case also has an adjusting function, namely the connection between the detector and the case has reliability and stability and has adjusting capacity at the same time so as to ensure that the detector can be adjusted to the position matched with a light path.
Disclosure of Invention
The invention aims to provide a connecting device for a detector in a spectrometer, which has reliable sealing performance and is beneficial to the adjustment of the detector.
In order to realize the above, the invention adopts the technical scheme that: a connecting device of a detector in a spectrometer is characterized in that: the periphery of a light inlet head of the detector is in sealing connection with the inner opening edge area of the sealing ring, the outer edge area of the sealing ring is in sealing connection with the hole edge of the light passing hole formed in the wall of the spectrometer box body, the light inlet head of the detector is arranged at the light passing hole, and the sealing ring is made of soft materials.
The sealing washer chooses soft materials for use to be favorable to its to warp and keep sealing performance, another effect of soft sealing washer in this application is just favorable to the regulation of the light head gesture position of advancing of detector to reserve deformation probably and prerequisite, the outer marginal portion and the tank wall sealing connection of sealing washer, the interior mouth of sealing washer is also formed sealing connection along regional and advancing between the light head periphery of detector, so the beam path and the inside cavity of spectrum appearance box of advancing the light head are in the same clean environment.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention in an exploded state;
FIG. 3 is a right side view of the drawing;
fig. 4 is a schematic structural diagram of the invention.
Detailed Description
In the spectrometer shown in the figure, light enters from the light incidence mirror 1, passes through each reflecting mirror 2 and the like to reach the detector 20, and imaging is completed by the detector 20.
In the connecting device of the detector in the spectrometer, the periphery of the light inlet head 21 of the detector 20 is hermetically connected with the inner opening edge area of the sealing ring 30, the outer edge area of the sealing ring 30 is hermetically connected with the hole edge of the light through hole 111 formed in the box wall 11 of the spectrometer box 10, the light inlet head 21 of the detector 20 is arranged at the light through hole 111, and the sealing ring 30 is made of soft material.
The above technical solution is to seal the space region between the light inlet 21 of the probe 20 and the light passing hole 111 on the box wall 11 by arranging the sealing ring 30, where the sealing ring 30 is made of a soft material, i.e. it is required to have a proper deformation capability, either elastic deformation or plastic deformation capability, such as rubber, so as to ensure that the probe 20 can perform posture adjustment and displacement adjustment within a proper range, and the above sealing connection structure provides a precondition for fine adjustment of the probe 20.
Preferably, the sealing ring 30 is in the form of a ring gasket, and the outer surface of the sealing ring 30 is hermetically attached to the inner surface of the wall 11 of the spectrometer housing 10 around the light passing hole 111. The gasket-type seal ring 30 is adopted, because the end face of the light inlet head 21 of the detector 20 is basically close to or basically flush with the position of the light through hole 111 after the detector is installed, the gasket-type seal ring 30 can meet the sealing requirement, and has a simple shape and saves materials and cost. If the distance between the end surface of the light inlet head 21 and the light passing hole 111 is too large in the axial direction, it is conceivable to select the seal ring 30 in the shape of a seal cuff having annular ends and a flared tube in the middle. As shown in fig. 3, the amount of deformation of the seal ring 30 is actually small to ensure the adjustment.
An annular pressing ring 40 is arranged on the inner end face side of the outer edge region of the seal ring 30, and the annular pressing ring 40 is connected to the tank wall 11 by a lock connection member.
It should be noted that, in the description of the positions of the inner and outer surfaces and the inner and outer ends of the same component, the center near the spectrometer housing 10 is the inner and inner ends, and the other end is the outer or outer end. The sealing ring 30 is arranged on the inner side of the box wall 11, that is, the sealing ring 30 is arranged in a cavity of the spectrometer box body 10, so that arrangement space and position are provided for installing and arranging the adjusting mechanism outside the spectrometer box body 10, otherwise, the installation difficulty of the adjusting mechanism is increased, and the sizes of all parts of the adjusting mechanism are increased.
The light inlet 21 of the detector 20 is screwed with a gland 50, an annular groove is formed by the peripheral wall or the end surface of the light inlet 21 and the gland 50, the groove opening points outwards in the radial direction, and the inner opening of the sealing ring 30 is sealed and clamped in the annular groove formed by the light inlet 21 and the gland 50. In fig. 4, the light inlet 21 is an internal thread tube, the gland 50 is provided with an external thread tube section, an annular groove is naturally formed between the end surface of the light inlet 21 and the external flange of the gland 50 after the light inlet 21 and the gland are screwed, and the inner ring edge of the sealing ring 30 is clamped in the annular groove area, so that reliable sealing connection is realized.
The detector 20 is connected to the inner frame 60, the inner frame 60 is connected to the outer side face of the box wall 11, an adjusting and locking mechanism is arranged between the outer side face and the inner frame, and the adjusting and locking mechanism adjusts the optical core posture of the detector 20 and locks the posture. It should be noted that, the inner frame 60 is connected to the probe 20 to be integrated, that is, the inner frame 60 is fixed and adjusted, the optical core posture may be replaced by the posture of the inner frame 60 or the relationship between the optical core posture and the inner frame 60 is determined, the posture adjustment of the probe 20 is changed to the posture adjustment of the inner frame 60, and the posture of the inner frame 60 is simply understood as the adjustment of the angle relationship between the frame surface of the inner frame 60 and the box wall 11. The annular region of the inner frame 60 is formed by continuous rods arranged in the circumferential direction or rods arranged intermittently in the circumferential direction. It follows that the inner frame 60 need not be understood to be a complete closed-loop box or circular frame, but that several ribs or rod-like members may be arranged on the sonde 20, this part being primarily for convenience of its connection to the tank wall 11. Preferably, the inner frame 60 is a square or circular frame, as shown in the figure, the inner frame 60 is provided with a connecting screw 61 connected to the box wall 11, the inner frame 60 is provided with an adjusting screw 62, and the inner end of the adjusting screw 62 abuts against the box wall 11. By coordinating and tightening the connecting screw 61 and the adjusting screw 62, the angle between the inner frame 60 and the tank wall 11 is adjusted and the posture is locked.
And a displacement adjusting and locking mechanism is arranged between the detector 20 and the box wall 11, and the displacement adjusting and locking mechanism adjusts the displacement of the optical core of the detector 20 and locks the position.
Specifically, the displacement adjusting locking mechanism includes an outer frame 70 disposed on the outer wall of the tank wall 11, the inner frame 60 is disposed in the range of the outer frame 70, a displacement adjusting screw 71 is disposed on the frame edge of the outer frame 70, the displacement adjusting screw 71 is disposed parallel to the tank wall 11, and the screw end abuts against the frame edge of the inner frame 60. By cooperatively adjusting the screwing displacement adjustment screw 71, the inner frame 60 is displaced in the left-right or up-down direction at a position within the range of the outer frame 70, and the position is locked.
Claims (10)
1. A connecting device of a detector in a spectrometer is characterized in that: the periphery of a light inlet head (21) of the detector (20) is connected with the inner opening edge area of a sealing ring (30) in a sealing mode, the outer edge area of the sealing ring (30) is connected with the hole edge of a light through hole (111) formed in the box wall (11) of the spectrometer box body (10) in a sealing mode, the light inlet head (21) of the detector (20) is arranged at the light through hole (111), and the sealing ring (30) is made of soft materials.
2. The connecting device for the detector in the spectrometer according to claim 1, wherein: the sealing ring (30) is in a shape of an annular gasket, and the outer side surface of the sealing ring (30) is attached to the inner side surface of the box wall (11) of the spectrometer box body (10) around the light passing hole (111) in a sealing mode.
3. The connection device for the detector in the spectrometer according to claim 1 or 2, characterized in that: an annular pressing ring (40) is arranged on the inner end face side of the outer edge region of the sealing ring (30), and the annular pressing ring (40) is connected with the box wall (11) through a locking connecting piece.
4. The connection device for the detector in the spectrometer according to claim 1 or 2, characterized in that: the light inlet (21) of the detector (20) is connected with a gland (50) in a threaded mode, an annular groove is formed by the peripheral wall or the end face of the light inlet (21) and the gland (50) in a surrounding mode, the groove opening points outwards in the radial direction, and the inner opening of the sealing ring (30) is clamped in the annular groove formed by the light inlet (21) and the gland (50) in a surrounding mode in an area sealing mode.
5. The connection device for the detector in the spectrometer according to claim 1 or 2, characterized in that: the detector (20) is connected to the inner frame (60), the inner frame (60) is connected to the outer side face of the box wall (11), an adjusting and locking mechanism is arranged between the outer side face and the inner frame, and the adjusting and locking mechanism adjusts the optical core posture of the detector (20) and locks the posture.
6. The connection device for the detector in the spectrometer according to claim 1 or 2, characterized in that: and a displacement adjusting and locking mechanism is arranged between the detector (20) and the box wall (11), and the displacement adjusting and locking mechanism adjusts the displacement of the optical core of the detector (20) and locks the position.
7. The spectrometer of claim 6, wherein the detector comprises: the detector (20) is connected to the inner frame (60), the inner frame (60) is connected to the outer side face of the box wall (11), an adjusting and locking mechanism is arranged between the outer side face and the inner frame (60), the adjusting and locking mechanism adjusts the optical core posture of the detector (20) and locks the posture, and a displacement adjusting and locking mechanism is arranged between the inner frame (60) and the box wall (11).
8. The spectrometer of claim 6, wherein the detector comprises: the displacement adjusting and locking mechanism comprises an outer frame (70) arranged on the outer wall of the box wall (11), the inner frame (60) is arranged in the area range of the outer frame (70), a displacement adjusting screw (71) is arranged on the frame edge of the outer frame (70), the displacement adjusting screw (71) is arranged in parallel to the box wall (11), and the end of the screw abuts against the frame edge of the inner frame (60).
9. The spectrometer of claim 6, wherein the detector comprises: the inner frame (60) is a square or circular frame, the inner frame (60) is provided with a connecting screw (61) connected to the box wall (11), the inner frame (60) is provided with an adjusting screw (62), and the inner end of the adjusting screw (62) is abutted to the box wall (11).
10. The spectrometer of claim 9, wherein the detector comprises: the annular area of the inner frame (60) is formed by arranging continuous rods in the circumferential direction or intermittently arranging the rods in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556822.8A CN113203683A (en) | 2021-05-21 | 2021-05-21 | Connecting device of detector in spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556822.8A CN113203683A (en) | 2021-05-21 | 2021-05-21 | Connecting device of detector in spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113203683A true CN113203683A (en) | 2021-08-03 |
Family
ID=77022818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110556822.8A Pending CN113203683A (en) | 2021-05-21 | 2021-05-21 | Connecting device of detector in spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113203683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308152A (en) * | 2022-10-11 | 2022-11-08 | 安徽创谱仪器科技有限公司 | Multimode integrated switching platform and method for receiving spectrometer signals |
| WO2024114622A1 (en) * | 2022-11-30 | 2024-06-06 | 江苏康缘药业股份有限公司 | External spectral data online collection system and use thereof |
-
2021
- 2021-05-21 CN CN202110556822.8A patent/CN113203683A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115308152A (en) * | 2022-10-11 | 2022-11-08 | 安徽创谱仪器科技有限公司 | Multimode integrated switching platform and method for receiving spectrometer signals |
| WO2024114622A1 (en) * | 2022-11-30 | 2024-06-06 | 江苏康缘药业股份有限公司 | External spectral data online collection system and use thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113203683A (en) | Connecting device of detector in spectrometer | |
| US9400243B2 (en) | Disposable sensor head and disposable container | |
| US7498575B2 (en) | Optical analysis device | |
| US7477376B2 (en) | Self-calibrating optical reflectance probe system | |
| US9470621B2 (en) | Modified measuring cuvette | |
| US20120162650A1 (en) | Self-Aligning Light Source and Detector Assembly | |
| CN215218522U (en) | Connecting device of detector in spectrometer | |
| CN112484852B (en) | Angle adjusting mechanism and Fourier transform infrared spectrometer with same | |
| US20240159654A1 (en) | Measuring cell for performing optical measurements | |
| EP2602645B1 (en) | Beam dump for particle counter or fluorescence detector | |
| CN207850907U (en) | Argoshield spectral analysis device and spectrochemical analysis for gases system | |
| CN210071648U (en) | Triple optical path air chamber and gas detection equipment | |
| EP3550289B1 (en) | Gas analysis device | |
| CN110907390B (en) | Integrated lens for terahertz detection | |
| CN211553745U (en) | Integrated lens for terahertz signal detection | |
| CN206223647U (en) | The scanning means of space gases | |
| US11674888B2 (en) | Self-aligned high finesse optical sensor cell | |
| CN212008293U (en) | Gas measuring chamber with ultra-long optical path | |
| CN210136165U (en) | Probe device with external light source | |
| US11346715B2 (en) | Standard reference material interface for Raman probe | |
| CN114199730B (en) | Airtight packaging type multidirectional adjusting structure for laser calibration | |
| CN109724928A (en) | Self-calibrating reference gas cell | |
| CN220872343U (en) | Constant-temperature long-optical-path cavity enhanced gas absorption tank | |
| CN221745871U (en) | Double-optical-path optical air chamber structure | |
| CN219038799U (en) | Same-side correlation spectrum detection probe based on sight glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: Building 11, Phase II, Yingtang Industrial Park, No. 103 Huatuo Lane, Shulu Community Service Center, High tech Zone, Hefei City, Anhui Province 230000 Applicant after: ANHUI SPECREATION INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 230000 8th floor, building 1, No. 228, Wanshui Road, high tech Zone, Shushan District, Hefei City, Anhui Province Applicant before: ANHUI SPECREATION INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: China |