CN112050941B - Dispersion type spectrometer - Google Patents
Dispersion type spectrometer Download PDFInfo
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- CN112050941B CN112050941B CN202010871771.3A CN202010871771A CN112050941B CN 112050941 B CN112050941 B CN 112050941B CN 202010871771 A CN202010871771 A CN 202010871771A CN 112050941 B CN112050941 B CN 112050941B
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- 239000006185 dispersion Substances 0.000 title claims abstract description 17
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- 238000003825 pressing Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
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- 230000000712 assembly Effects 0.000 claims description 11
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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
- G01J3/02—Details
- G01J3/0202—Mechanical elements; Supports for optical elements
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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
- G01J3/2823—Imaging spectrometer
Abstract
The invention discloses a dispersion type spectrometer, which realizes the installation of optical devices by utilizing a truss support system through the modular design of each part, and has the advantages of low processing cost, high processing precision requirement, high installation and adjustment performance, high universality, short development period and the like compared with the existing dispersion type spectrometer. The spectrometer comprises a front-mounted optical system, a light splitting system, an imaging system and a truss support system; the truss support system comprises a front end mounting flange, a rear end mounting flange, an adjusting support rod assembly, a front end fixed base and a rear end fixed base, the front end mounting flange is connected with a front optical system through a first adapter flange, the rear end mounting flange is connected with an imaging system through a second adapter flange, a light splitting system is installed through a light splitting system mounting plate and an adapter plate which are arranged between the front end mounting flange and the rear end mounting flange, the adjusting support rod assembly is connected with the front end mounting flange through a ball head and a ball head groove, and the rear end fixed base is connected with the front end mounting flange through a ball head and a ball head groove.
Description
Technical Field
The invention belongs to the field of spectral imaging, and relates to a dispersion type spectrometer.
Background
The imaging spectrometer can be divided into a filter type, a dispersion type and an interference type according to the difference of the light splitting system, wherein the dispersion type spectrometer is most widely applied. The dispersive spectrometer mainly comprises a preposed optical system, a dispersive light splitting system and an imaging system.
At present, the support mode aiming at each optical device in the dispersion type spectrometer mainly comprises a casting box type support and a flat plate bracket type support;
the casting box type support specifically comprises the steps that a primary structure of a support box body is determined through a casting, and the accuracy of the installation position of each camera component is guaranteed through local finish machining;
the flat plate bracket type support is characterized in that all parts of a camera are arranged on a bracket, and then the bracket is arranged on a bottom plate one by one according to the design size requirement;
the above two methods have the following disadvantages:
firstly, the processing cost is high, including the secondary finish machining cost of the die opening of the casting is high;
secondly, the requirement on the machining precision is higher;
the assembly and adjustment performance is poor, the assembly precision is generally guaranteed by depending on the machining precision whether the casting box type support or the flat plate bracket type support is adopted, and the assembly and adjustment range of reserved assembly and adjustment personnel is small;
and fourthly, the universality is poor, the two support modes are the proprietary designs of the cameras aiming at specific design parameters, and the cameras with different design parameters cannot share the support structure.
Fifthly, the development period is long, the two spectrometer design modes need a long structural part processing period and a long assembling and debugging period, and meanwhile, the change period after trial and error is long, so that the development period of the spectrometer is greatly prolonged.
Disclosure of Invention
The invention provides a dispersion type spectrometer, which realizes the installation of optical devices by utilizing a truss support system through the modular design of each part and solves the problems of high processing cost, high processing precision requirement, poor installation and adjustment performance, poor universality and long development period of the existing dispersion type spectrometer.
The technical scheme of the invention is as follows:
the invention provides a dispersion type spectrometer, which comprises a preposed optical system, a light splitting system and an imaging system, and is improved in that the dispersion type spectrometer also comprises a truss support system; the truss support system comprises a front end mounting flange, a rear end mounting flange, a light splitting system mounting plate, an adjusting support rod assembly, a front end fixed base and a rear end fixed base;
the front end mounting flange and the rear end mounting flange are both provided with central light through holes;
the front surface of the front end mounting flange is provided with a front optical system through a first adapter flange, and N front end fixed bases are arranged on the rear surface of the front end mounting flange along the circumferential direction;
n rear end fixing bases are arranged on the front surface of the rear end mounting flange along the circumferential direction, and an imaging system is arranged on the rear surface of the rear end mounting flange through a second adapter flange;
all the front end fixed bases and all the rear end fixed bases are arranged in a staggered mode along the circumferential direction; the front end fixing base and the rear end fixing base are both provided with two spherical grooves;
the number of the adjusting support rod assemblies is 2N, and two ends of each adjusting support rod assembly are provided with ball heads; one end of the adjusting supporting rod assembly is arranged in the spherical groove of the front end fixing base through a ball head, and the other end of the adjusting supporting rod assembly is arranged in the spherical groove of the rear end fixing base through a ball head; every two adjacent adjusting support rod assemblies are in a splayed shape, wherein N is more than or equal to 3;
a light splitting system mounting plate is arranged between the front end mounting flange and the rear end mounting flange; the light splitting system is arranged on the light splitting system mounting plate through the adapter plate, the light splitting system mounting plate is provided with an attitude adjusting mechanism, and the attitude adjusting mechanism acts on the adapter plate to realize the attitude adjustment of the light splitting system in a plane parallel to the light splitting system mounting plate. Meanwhile, the mode of adding the trimming pad on the adapter plate ensures that the light splitting system, the front optical system, the central light through hole of the front-end mounting flange, the central light through hole of the rear-end mounting flange and the imaging system are coaxial.
Further, in order to enable the front-mounted optical system mounted on the front-end mounting flange and the imaging assembly mounted on the rear-end mounting flange to be adjusted in distance and relative inclination; the adjusting support rod assembly comprises an adjusting support rod front section, an adjusting screw rod, an adjusting support rod rear section and a locking threaded sleeve;
the front end of the front section of the adjusting support rod is a ball head, and the rear end of the front section of the adjusting support rod is in threaded connection with the front end of the adjusting screw rod; the rear end of the rear section of the adjusting support rod is a ball head, and the front end of the rear section of the adjusting support rod is in threaded connection with the rear end of the adjusting screw rod;
the screw thread used for adjusting the matching of the front section of the support rod and the adjusting screw rod is opposite to the screw thread used for adjusting the matching of the rear section of the support rod and the adjusting screw rod in the rotating direction;
the outer wall of the rear end of the front section of the adjusting support rod is provided with a locking external thread;
the front end of the rear section of the adjusting strut is provided with an annular stop boss;
the locking screw sleeve comprises a large-diameter section and a small-diameter section; the small-diameter section of the locking screw sleeve is slidably sleeved on the rear section of the adjusting support rod, and the large-diameter section of the locking screw sleeve is provided with a locking internal thread matched with the locking external thread.
Furthermore, the middle part of the adjusting screw is polygonal, so that the adjusting screw can be conveniently used when a wrench is used for adjusting the length.
Furthermore, in order to facilitate assembly and ensure the matching precision of the ball head and the spherical groove, the front end fixing base is of a split structure and comprises a supporting block, a pressing block and a pressing screw;
two first hemispherical grooves are formed in the supporting block, and two second hemispherical grooves are formed in the pressing block;
the pressing block is arranged on the supporting block through a pressing screw, and after the pressing block is matched with the supporting block, the two first hemispherical grooves and the two second hemispherical grooves are matched to form two spherical grooves;
the rear end fixed base and the front end fixed base are the same in structure.
Furthermore, the plurality of posture adjusting mechanisms are distributed on the periphery of the adapter plate and used for carrying out posture adjustment on the light splitting system in the horizontal direction;
the posture adjusting mechanism comprises an adjusting jackscrew and a bulge; the bumps are fixedly installed on the light splitting system installation plate and located on the side of the adapter plate, the adjusting jackscrews are in threaded connection with the bumps and then are in contact with the side face of the adapter plate, and the adapter plate can be driven by the adapter plate to adjust the posture of a horizontal plane through rotating the adjusting jackscrews.
Further, in order to better realize temperature control, the spectrometer also comprises a light splitting system outer cover and a plurality of heating sheets;
the light splitting system outer cover is arranged on the light splitting system mounting plate, and the light splitting system is positioned in the light splitting system outer cover; the heating sheets are uniformly attached to the outer surface of the light splitting system outer cover and the bottom surface of the light splitting system mounting plate, and the surfaces attached with the heating sheets are all coated with heat preservation cotton.
Further, the spectrometer also comprises a first carbon fiber outer cover and a plurality of heating sheets; the first carbon fiber outer cover is coaxially arranged outside the front optical system; and the plurality of heating sheets are uniformly attached to the shell of the front optical system and are coated by heat-insulating cotton.
Furthermore, the spectrometer also comprises a second carbon fiber outer cover sleeved outside the truss support system, and two ends of the second cylindrical carbon fiber outer cover are respectively connected with the first adapter flange and the second adapter flange.
Furthermore, glass fiber reinforced plastic heat insulation pads are arranged between the first adapter flange and the front optical system and between the rear end mounting flange and the second adapter flange.
Furthermore, in order to realize the lightweight design, a plurality of lightening holes are formed in the front end mounting flange and the rear end mounting flange.
The invention has the advantages that:
1. the invention divides a dispersion type spectrometer into a front optical system, a light splitting system, an imaging system and a support system, the front optical system, the light splitting system and the imaging system are connected into a whole through the support system, the support system comprises a front end mounting flange, a rear end mounting flange, an adjusting support rod assembly and a fixed base, the front end mounting flange is connected with the front optical system through a first adapter flange, the rear end mounting flange is connected with the imaging system through a second adapter flange, the light splitting system is installed through a light splitting system mounting plate and an adapter plate which are arranged between the front end mounting flange and the rear end mounting flange, the posture of the light splitting system is adjusted in a plane parallel to the light splitting system mounting plate through a posture adjusting mechanism acting on the adapter plate, and meanwhile, the light splitting system is ensured to be connected with the imaging system through a mode of adding trimming pads on the adapter plate, The front optical system, the central light through hole of the front end mounting flange, the central light through hole of the rear end mounting flange and the imaging system are coaxial, and the adjusting support rod assembly is connected with the fixed base through the ball head and the ball head groove, so that the front end mounting flange and the rear end mounting flange have certain adjustment amount and can be used for compensating errors caused by machining and assembling; the module design can greatly shorten the development period, the cost and the processing difficulty of equipment and has universality.
2. The invention adopts a truss support structure form to connect all modules, thereby effectively reducing the weight of the spectrometer, and an adjusting support rod assembly of the truss support structure consists of an adjusting support rod front section, an adjusting support rod rear section, an adjusting screw rod and a locking screw sleeve.
3. The invention performs temperature control design and heat preservation and insulation design on the spectrometer, can keep the spectrometer at a certain constant temperature when the spectrometer is in a complex external field test environment, and improves the equipment stability of the spectrometer and the accuracy of data acquisition to a certain extent.
4. The invention realizes the design of heat preservation and environment heat insulation of the temperature control area of the spectrometer by using the carbon fiber cover, and improves the aesthetic degree of the spectrometer on the premise of ensuring the performance of the spectrometer.
Drawings
FIG. 1 is a schematic diagram of a dispersive spectrometer according to the present invention;
FIG. 2 is a schematic structural view of a truss support system;
FIG. 3 is a schematic structural view of an adjusting strut assembly in example 2;
FIG. 4 is a schematic structural view of a front fixing base in embodiment 3;
FIG. 5 is a sectional view of embodiment 4;
FIG. 6 is a partial structural diagram of the front optical system assembled with the first adapter flange.
FIG. 7 is a partial structural schematic view of the rear mounting flange and the second adaptor flange after assembly.
Fig. 8 is a schematic structural view of the posture adjustment mechanism.
Description of reference numerals:
1-a front-mounted optical system, 2-a light splitting system, 3-an imaging system, 4-a truss support system, 5-a front-end mounting flange, 6-a rear-end mounting flange, 7-a light splitting system mounting plate, 8-an adjusting support rod assembly, 81-a front adjusting support rod section, 82-a rear adjusting support rod section, 83-an adjusting screw rod, 84-a locking screw sleeve, 85-a locking external thread, 86-an annular stop boss, 9-a front-end fixed base, 91-a supporting block, 92-a pressing block, 93-a locking screw, 10-a rear-end fixed base, 11-a central light through hole, 12-a first adapter flange, 13-a second adapter flange, 14-a spherical groove, 15-a ball head, 17-an adapter plate, 18-a posture adjusting mechanism, 19-adjusting jackscrew, 20-bump, 21-light splitting system housing, 22-heating plate, 23-first cylindrical carbon fiber housing, 24-second cylindrical carbon fiber housing, 25-glass fiber reinforced plastic heat insulation pad, 26-lightening hole and 27-fixing plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The present embodiment provides a specific structure of a dispersion type spectrometer, as shown in fig. 1 and 2, the dispersion type spectrometer adopts a modular design, and includes four modules, namely a front optical system 1, a light splitting system 2, an imaging system 3, and a truss support system 4;
the front-end optical system 1, the light splitting system 2 and the imaging system 3 are all commercially available products according to actual requirements.
The truss support system 4 comprises a front end mounting flange 5, a rear end mounting flange 6, a light splitting system mounting plate 7, an adjusting support rod assembly 8, a front end fixed base 9 and a rear end fixed base 10;
the front end mounting flange 5 and the rear end mounting flange 6 are both provided with a central light through hole 11;
the front surface of the front end mounting flange 5 is provided with the front optical system 1 through a first adapter flange 12, and N front end fixed bases 9 are arranged on the rear surface of the front end mounting flange 5 along the circumferential direction;
n rear end fixing bases 10 are arranged on the front surface of the rear end mounting flange 6 along the circumferential direction, and the imaging system 3 is arranged on the rear surface of the rear end mounting flange 6 through a second adapter flange 13; the purpose of using the first adapter flange 12 and the second adapter flange 13 is to enable the truss support system 4 to be universally used for different sizes of the front optical system 1 and the imaging system 3.
All the front end fixed bases 9 and all the rear end fixed bases 10 are arranged in a staggered manner along the circumferential direction; two spherical grooves 14 are respectively arranged on each front end fixed base 9 and each rear end fixed base 10;
2N adjusting support rod assemblies 8 are arranged, and two ends of each adjusting support rod assembly 8 are provided with ball heads 15; one end of the adjusting support rod component 15 is arranged in a spherical groove 14 of the front end fixing base 9 through a ball head 15, and the other end of the adjusting support rod component 15 is arranged in a spherical groove 14 of the rear end fixing base 10 through the ball head 15; each two adjacent adjusting support rod assemblies 8 are in a splayed shape, wherein N is more than or equal to 3;
a light splitting system mounting plate 7 is arranged between the front end mounting flange 5 and the rear end mounting flange 6; the light splitting system 2 is installed on the light splitting system installation plate 7 through the adapter plate 17, the light splitting system installation plate 7 is provided with the posture adjusting mechanism 18, posture adjustment of the light splitting system in a plane parallel to the light splitting system installation plate is achieved through action of the posture adjusting mechanism 18 on the adapter plate, and meanwhile, the light splitting system 2, the front optical system 1, the central light through hole of the front end installation flange, the central light through hole of the rear end installation flange and the imaging system 3 are enabled to keep coaxial in a mode of adding a trimming pad on the adapter plate 17.
As shown in fig. 8, in the present embodiment, the plurality of posture adjustment mechanisms 18 are distributed at the periphery of the adapter plate for performing posture adjustment on the light splitting system in the horizontal direction; the posture adjusting mechanism 18 comprises an adjusting jackscrew 19 and a protrusion 20; the protrusion 20 is fixedly installed on the light splitting system installation plate 7 and located on the side of the adapter plate 17, and the adjusting jackscrew 19 is in threaded connection with the protrusion 20 and then is in contact with the side of the adapter plate 17. Because the adapter plate is in threaded connection with the light splitting system mounting plate, and certain gap amount is reserved between the screw between the adapter plate and the light splitting system mounting plate and the mounting hole, the adapter plate can have certain adjustment amount by rotating the adjusting jackscrew, and therefore adjustment of the light splitting system is achieved.
Example 2
The structure of the adjusting strut assembly 8 in this embodiment is the same as that of embodiment 1, and the structure of the adjusting strut assembly will be described in detail: as shown in fig. 3, the adjusting strut assembly 8 includes an adjusting strut front section 81, an adjusting screw 83, an adjusting strut rear section 82, and a locking screw sleeve 84;
the front end of the front section 81 of the adjusting support rod is a ball head, and the rear end of the front section 81 of the adjusting support rod is in threaded connection with the front end of the adjusting screw 83; the rear end of the rear section 82 of the adjusting support rod is a ball head, and the front end of the rear section 82 of the adjusting support rod is in threaded connection with the rear end of the adjusting screw 83; the thread for matching the front section 81 of the adjusting support rod with the adjusting screw 83 is opposite to the thread for matching the rear section 82 of the adjusting support rod with the adjusting screw 83; (in this embodiment, the direction of the screw thread for adjusting the front section of the strut to match with the adjusting screw is right-handed, and the screw thread for adjusting the rear section of the strut to match with the adjusting screw is left-handed) the purpose of this design is: the front section of the adjusting support rod and the rear section of the adjusting support rod can simultaneously move inwards or simultaneously move outwards by rotating the adjusting screw rod forwards and backwards, so that the length of the adjusting support rod is adjusted;
furthermore, the outer wall of the rear end of the front section 81 of the adjusting strut is provided with a locking external thread 85; the front end of the adjusting strut rear section 82 is provided with an annular stop boss 86; the locking nut 84 includes a large-diameter section and a small-diameter section; the small diameter section of the locking screw sleeve 84 is slidably sleeved on the rear section 82 of the adjusting support rod, and the large diameter section of the locking screw sleeve 84 is provided with a locking internal thread matched with the locking external thread 85. After the length adjustment of the adjusting screw rod is completed, the locking internal thread of the large-diameter section of the locking screw sleeve is matched with the locking external thread of the front section of the adjusting support rod, and the limiting effect of the annular locking boss enables the length of the adjusting support rod after adjustment to be invariable all the time. Make the length of adjusting the fulcrum bar adjustable through rotatory adjusting screw to make leading optical system on the front end mounting flange and install the formation of image subassembly on the mounting flange of rear end can carry out the support and the adjustment of the applicable non-coaxial optical system of regulation of distance and relative slope volume, repair with the tradition and cut the pad adjustment mode and compare, need not to process alone and repair and cut the pad and carry out angular adjustment, reduced component complexity and processing cost, shortened the installation and debugging cycle simultaneously.
In the embodiment, in order to facilitate the length adjustment, the middle part of the adjusting screw 83 is hexagonal prism, which facilitates the adjustment by using a wrench.
Example 3
On the basis of embodiment 2, in order to facilitate assembly and ensure the fitting accuracy of the ball head and the spherical groove, in this embodiment, the front fixing base 9 and the rear fixing base 10 are optimally designed, the rear fixing base has the same structure as the front fixing base, here, the front fixing base is taken as an example for description, and as shown in fig. 4, the front fixing base 9 is a split structure and includes a supporting block 91, a pressing block 92 and a locking screw 93; the supporting block 91 is connected with the pressing block 92 through a locking screw 93, two first hemispherical grooves are formed in the supporting block 91, and two second hemispherical grooves are formed in the pressing block 92; after the holding-down block 91 and the supporting block 92 are fitted, the first and second hemispherical grooves form a spherical groove 14 for fitting with the ball head, and the first and second hemispherical grooves are formed by combining the supporting block 91 and the holding-down block 92.
Example 4
On the basis of embodiment 3, this embodiment still carries out temperature control design and heat preservation thermal-insulated design to this spectrum appearance, can make the spectrum appearance when being in complicated external field test environment, is in the constant temperature all the time, has improved the equipment stability of spectrum appearance and the accuracy of data collection.
The specific structure of temperature control design and heat preservation and insulation design is as follows:
as shown in fig. 5, the light splitting system mounting plate 7 is provided with a light splitting system housing 21, and the light splitting system 2 is located in the light splitting system housing; the heating sheets 22 are uniformly attached to the outer surface of the light splitting system outer cover 21 and the bottom surface of the light splitting system mounting plate 7, and the surfaces attached with the heating sheets 22 are all coated with heat preservation cotton.
A first cylindrical carbon fiber outer cover 23 is sleeved outside the preposed optical system 1; the heating sheets 22 are uniformly attached to the housing of the front optical system 1 and are covered with heat-insulating cotton.
The truss support system 4 is externally sleeved with a second cylindrical carbon fiber outer cover 24, and two ends of the second cylindrical carbon fiber outer cover 24 are respectively connected with the first adapter flange 12 and the second adapter flange 13.
Glass fiber reinforced plastic heat insulation pads 25 are arranged between the first adapter flange 12 and the front optical system 1 and between the rear mounting flange 6 and the second adapter flange 13, as shown in fig. 6 and 7.
On the basis of the four embodiments, the invention also makes the following optimization design:
1. as shown in fig. 5, in order to further reduce the weight of the design, the front end mounting flange 5 and the rear end mounting flange 6 are provided with a plurality of lightening holes 26.
2. As shown in fig. 5, in order to realize the docking of the spectrometer with the external support, a fixing plate 27 is disposed between the outer circumferential surfaces of the first adapter flange 12 and the second adapter flange 13, and the fixing plate 27 is provided with a mounting hole for connecting with the external support.
Based on the above description of different structural forms of the dispersion type spectrometer, the assembling process of the spectrometer will now be briefly described:
firstly, the truss support system is assembled, and the parallelism of the front-end mounting flange and the rear-end mounting flange is ensured to meet the design requirement, wherein the required parallelism is 0.02mm, and the specific assembling process is as follows:
1. the front sections of the eight adjusting support rods are connected with the rear sections of the eight adjusting support rods through adjusting screws, and the lengths of the eight adjusting support rods are basically kept consistent by rotating the adjusting screws;
2. the four supporting blocks are uniformly distributed and fixed on the front end mounting flange 1 through screws. And then, ball heads at one ends of the eight adjusting support rod assemblies are respectively arranged in eight first hemispherical grooves on the four supporting blocks on the front-end mounting flange, and the four pressing blocks are arranged on the supporting block 41 of the fixed base through locking screws, so that four fixed bases are formed before being matched with the adjusting support rod assemblies through the ball heads and the spherical grooves. Because the ball head of the adjusting support rod component is in minimum clearance fit with the spherical groove of the front fixing base, the adjusting support rod component only has rotation freedom and no relative displacement freedom relative to the front fixing base.
3. The eight locking screw sleeves are respectively sleeved on the rear sections of the adjusting support rods of the eight adjusting support rod assemblies, and the other four support blocks are uniformly distributed and fixed on a rear-end mounting flange through screws; and the ball heads at the other ends of the eight adjusting support rod assemblies are respectively arranged in eight first hemispherical grooves on the four supporting blocks on the mounting flange at the rear end, and the other four pressing blocks are arranged on the four supporting blocks through locking screws, so that four fixing bases which are respectively matched with the 8 adjusting support rod assemblies through the ball heads and the spherical grooves are formed.
4. And adjusting the relative position and angle of the front end mounting flange and the rear end mounting flange according to the design requirement of the spectrometer. The specific adjustment mode is as follows:
4.1, placing a front end mounting flange on a stable platform surface (the stable platform surface is always kept horizontal to the ground);
4.2, placing the digital level meter on a rear end mounting flange to monitor the inclination amount of the digital level meter;
4.3, rotating the adjusting screw rod of the corresponding adjusting support rod assembly through a wrench so as to change the length of the adjusting support rod assembly, and monitoring the numerical value of the digital level meter in real time in the adjusting process until the numerical value of the digital level meter is the design value; and finally, the front section of the adjusting support rod and the rear section 32 of the adjusting support rod are fastened by screwing the locking screw sleeve, so that the length of the adjusting support rod assembly is ensured to be unchanged.
The assembly of the truss support system is completed through the steps;
and then the front-mounted optical system and the imaging assembly are respectively installed on the front-end installation flange and the rear-end installation flange through the first adapter flange and the second adapter flange.
And secondly, mounting the light splitting system mounting plate between the front end mounting flange and the rear end mounting flange, and fixing the light splitting system mounting plate through screws.
Then the adapter plate and the light splitting system are sequentially arranged above the light splitting system mounting plate;
and then, position measurement is carried out on the mounting surface of the front mounting flange and the reference surface of the light splitting system by utilizing three-coordinate measuring equipment, the light splitting system is subjected to posture adjustment according to the deviation between the measured data and the designed value, and the adjustment of the position errors of the light splitting system in the Z direction, the Y direction and the X direction is realized by adding trimming pads and matching with a posture adjusting mechanism, so that the data measured by the three-coordinate measuring equipment is consistent with the designed value.
And finally, performing single-spectrum light source target imaging on the spectrometer, and adjusting the rotation of the imaging component by utilizing the inclination of the imaging spectrum line and the pixel of the imaging component detection photoreceptor to finally align the imaging spectrum line with a certain line of pixels on the imaging component detection photoreceptor.
Thereby completing the assembly process of the spectrometer.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A dispersion type spectrometer comprises a front optical system, a light splitting system and an imaging system, and is characterized by further comprising a truss support system; the truss support system comprises a front end mounting flange, a rear end mounting flange, a light splitting system mounting plate, an adjusting support rod assembly, a front end fixed base and a rear end fixed base;
the front end mounting flange and the rear end mounting flange are both provided with central light through holes;
the front surface of the front end mounting flange is provided with a front optical system through a first adapter flange, and N front end fixed bases are arranged on the rear surface of the front end mounting flange along the circumferential direction;
n rear end fixing bases are arranged on the front surface of the rear end mounting flange along the circumferential direction, and an imaging system is arranged on the rear surface of the rear end mounting flange through a second adapter flange;
all the front end fixed bases and all the rear end fixed bases are arranged in a staggered mode along the circumferential direction; the front end fixing base and the rear end fixing base are both provided with two spherical grooves;
the number of the adjusting support rod assemblies is 2N, and two ends of each adjusting support rod assembly are provided with ball heads; one end of the adjusting supporting rod assembly is arranged in the spherical groove of the front end fixing base through a ball head, and the other end of the adjusting supporting rod assembly is arranged in the spherical groove of the rear end fixing base through a ball head; every two adjacent adjusting support rod assemblies are in a splayed shape, wherein N is more than or equal to 3;
the adjusting support rod assembly comprises an adjusting support rod front section, an adjusting screw rod, an adjusting support rod rear section and a locking threaded sleeve;
the front end of the front section of the adjusting support rod is a ball head, and the rear end of the front section of the adjusting support rod is in threaded connection with the front end of the adjusting screw rod; the rear end of the rear section of the adjusting support rod is a ball head, and the front end of the rear section of the adjusting support rod is in threaded connection with the rear end of the adjusting screw rod;
the screw thread used for adjusting the matching of the front section of the support rod and the adjusting screw rod is opposite to the screw thread used for adjusting the matching of the rear section of the support rod and the adjusting screw rod in the rotating direction;
the outer wall of the rear end of the front section of the adjusting support rod is provided with a locking external thread;
the front end of the rear section of the adjusting strut is provided with an annular stop boss;
the locking screw sleeve comprises a large-diameter section and a small-diameter section; the small-diameter section of the locking screw sleeve is slidably sleeved on the rear section of the adjusting support rod, and the large-diameter section of the locking screw sleeve is provided with a locking internal thread matched with the locking external thread;
the middle part of the adjusting screw rod is in a polygon prism shape;
a light splitting system mounting plate is arranged between the front end mounting flange and the rear end mounting flange; the light splitting system is arranged on the light splitting system mounting plate through the adapter plate, the light splitting system mounting plate is provided with an attitude adjusting mechanism, and the attitude adjusting mechanism acts on the adapter plate to realize the attitude adjustment of the light splitting system in a plane parallel to the light splitting system mounting plate.
2. The dispersive spectrometer of claim 1, wherein: the front end fixing base is of a split structure and comprises a supporting block, a pressing block and a pressing screw;
two first hemispherical grooves are formed in the supporting block, and two second hemispherical grooves are formed in the pressing block;
the pressing block is arranged on the supporting block through a pressing screw, and after the pressing block is matched with the supporting block, the two first hemispherical grooves and the two second hemispherical grooves are matched to form two spherical grooves;
the rear end fixed base and the front end fixed base are the same in structure.
3. The dispersive spectrometer of claim 2, wherein: the plurality of posture adjusting mechanisms are distributed on the periphery of the adapter plate and used for carrying out posture adjustment on the light splitting system in the horizontal direction;
the posture adjusting mechanism comprises an adjusting jackscrew and a bulge; the protrusions are fixedly installed on the light splitting system installation plate and located on the lateral side of the adapter plate, and the adjusting jackscrews are in threaded connection with the protrusions and then are in contact with the lateral side of the adapter plate.
4. The dispersive spectrometer of claim 3, wherein: the spectrometer also comprises a light splitting system outer cover and a plurality of heating sheets;
the light splitting system outer cover is arranged on the light splitting system mounting plate, and the light splitting system is positioned in the light splitting system outer cover; the heating sheets are uniformly attached to the outer surface of the light splitting system outer cover and the bottom surface of the light splitting system mounting plate, and the surfaces attached with the heating sheets are all coated with heat preservation cotton.
5. The dispersive spectrometer of claim 4, wherein: the heating device also comprises a first cylindrical carbon fiber outer cover and a plurality of heating sheets; the first cylindrical carbon fiber outer cover is coaxially arranged outside the front optical system; and the plurality of heating sheets are uniformly attached to the shell of the front optical system and are coated by heat-insulating cotton.
6. The dispersive spectrometer of claim 5, wherein: the spectrometer also comprises a second cylindrical carbon fiber outer cover sleeved outside the truss support system, and two ends of the second cylindrical carbon fiber outer cover are respectively connected with the first adapter flange and the second adapter flange.
7. The dispersive spectrometer of claim 6, wherein: and glass fiber reinforced plastic heat insulation pads are arranged between the first adapter flange and the front optical system and between the rear end mounting flange and the second adapter flange.
8. The dispersive spectrometer of claim 7, wherein: and the front end mounting flange and the rear end mounting flange are respectively provided with a plurality of lightening holes.
9. The dispersive spectrometer of claim 8, wherein: and a fixing plate is arranged between the outer circle surfaces of the first adapter flange and the second adapter flange and provided with a mounting hole connected with an external support piece.
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| CN202010871771.3A CN112050941B (en) | 2020-08-26 | 2020-08-26 | Dispersion type spectrometer |
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| CN202010871771.3A CN112050941B (en) | 2020-08-26 | 2020-08-26 | Dispersion type spectrometer |
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| CN116243446B (en) * | 2023-05-05 | 2023-09-01 | 中国科学院西安光学精密机械研究所 | Ultra-light flexible support optical system and assembly method thereof |
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| CN103592023A (en) * | 2013-11-20 | 2014-02-19 | 江苏天瑞仪器股份有限公司 | Light splitting chamber for direct-reading spectrometer |
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| CN111255989A (en) * | 2020-02-28 | 2020-06-09 | 中国科学院西安光学精密机械研究所 | Support truss rod and space truss structure |
| CN211042669U (en) * | 2020-01-09 | 2020-07-17 | 无锡汉纳科技有限公司 | Adjustable fixed optical element assembly base |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3042168B1 (en) * | 2013-09-05 | 2021-12-29 | Bruker AXS GmbH | Optical base body for spectrometer, method of producing an optical base body for a spectrometer and spectrometer comprising such an optical base body |
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| CN103592023A (en) * | 2013-11-20 | 2014-02-19 | 江苏天瑞仪器股份有限公司 | Light splitting chamber for direct-reading spectrometer |
| CN105043540A (en) * | 2015-07-05 | 2015-11-11 | 钢研纳克检测技术有限公司 | Raster fixing structure with three-dimensional attitude adjusting function |
| CN106706129A (en) * | 2016-12-30 | 2017-05-24 | 中国科学院西安光学精密机械研究所 | Standard modularization spaceborne spectrometer |
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