A method for concentrically aligning a spectrometer

Abstract

The application discloses a kind of spectrograph concentric adjustment methods, belong to optical adjustment technical field, including concentric tooling assembly, concentric tooling adjustment and using interferometer and theodolite carries out the concentric adjustment of spectrograph, the method of the application does not need to carry out repeated adjustment in adjustment process, spectrograph is higher in adjustment efficiency, improve the output of spectrograph, so that spectrograph can be more accurately applied.

Description

Technical Field

[0001] This invention relates to the field of optical assembly and adjustment technology, and in particular to a method for concentric assembly and adjustment of a spectrometer. Background Technology

[0002] A spectroscope is a scientific instrument that breaks down complex light into spectral lines. It consists of prisms or diffraction gratings and measures the light reflected from the surface of an object. The seven colors of sunlight are the visible light that the naked eye can distinguish. However, if sunlight is broken down by a spectroscope and arranged by wavelength, visible light occupies only a small portion of the spectrum; the rest are indistinguishable to the naked eye, such as infrared, microwaves, ultraviolet rays, and X-rays. By capturing light information with a spectroscope, developing it on photographic film, or displaying and analyzing the data using computerized automated instruments, the elements contained in an object can be determined. This technology is widely used in the detection of air pollution, water pollution, food hygiene, and the metal industry.

[0003] Spectrometers have strict tolerance requirements for each component, and installation errors have a significant impact on the performance of the spectrometer. In order to meet the tolerance requirements, existing spectrometer solutions generally require repeated adjustments during the assembly and adjustment process, resulting in low assembly and adjustment efficiency and affecting the production output or application of the spectrometer. Summary of the Invention

[0004] This invention provides a concentric assembly and adjustment method for a spectrometer, addressing the technical problem that repeated adjustments are typically required during the assembly and adjustment process, leading to low assembly and adjustment efficiency and impacting the production or application of the spectrometer. The specific details of this invention are as follows:

[0005] The purpose of this invention is to provide a method for concentric assembly and adjustment of a spectrometer, the technical point of which is that it includes the following steps:

[0006] Step 1: After forming a cross-shaped target by pulling a line on the concentric tooling, assemble it with the concentric tooling adapter plate into the spectrometer frame;

[0007] Step 2: Detachably fix the spectrometer frame from Step 1 onto the marble platform of the coordinate measuring machine. Use a lever dial indicator to adjust the position of the concentric tooling so that the distance X from the center of the crosshair target to the upper reference surface of the spectrometer frame and the distance Y from the center to the left reference surface of the spectrometer frame are within the tolerances specified on the drawing. Then fix the concentric tooling adapter plate to complete the concentric tooling installation and adjustment.

[0008] Step 3: Remove the spectrometer frame from the marble platform of the coordinate measuring machine in Step 2 and fix it on the six-axis six-legged displacement stage, so that the coordinates of the spectrometer frame are orthogonally related to the coordinates of the six-axis six-legged displacement stage. The spectrometer is located between the theodolite and the interferometer. The concentric fixture is close to the interferometer. Adjust the attitude of the theodolite so that the theodolite and the concentric fixture are coaxial, so that the image of the crosshair target on the concentric fixture is placed inside the theodolite. Record the pitch and horizontal attitude angles of the theodolite and fix it.

[0009] Step four: Replace the standard lens of the interferometer in step three with a plane lens, adjust the five-dimensional adjustment frame of the interferometer until the image returned by the plane standard lens coincides with the image of the crosshair target built into the theodolite, then remove the standard plane lens of the interferometer, replace it with the standard lens, and move the interferometer left, right, up, and down until the focal point of the interferometer can be seen to coincide with the image of the crosshair target built into the theodolite.

[0010] In some embodiments of this invention, the method of pulling the wire on the concentric fixture in step one of the above-mentioned concentric assembly method of the spectrometer is as follows: a cross target is formed by pulling the wire with thin fishing line or thin metal wire at both ends of the concentric fixture.

[0011] In some embodiments of this invention, the assembly method in step one of the above-mentioned concentric assembly and adjustment method of the spectrometer is: assembly using spring-loaded screws.

[0012] In some embodiments of this invention, the detachable fixing method of the spectrometer frame in step two of the above-mentioned concentric assembly method of the spectrometer is as follows: the spectrometer frame is fixed around its perimeter using hot melt glue sticks.

[0013] Compared with the prior art, the beneficial effects of the concentric assembly method for a spectrometer of the present invention are as follows:

[0014] The present invention provides a method for concentric assembly and adjustment of a spectrometer, which includes concentric tooling assembly, concentric tooling adjustment, and concentric assembly and adjustment of the spectrometer using an interferometer and a theodolite. The method of the present invention does not require repeated adjustments during the assembly and adjustment process, resulting in higher assembly and adjustment efficiency of the spectrometer, increasing the production of spectrometers, and enabling the spectrometer to be applied more accurately. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the concentric tooling assembly and adjustment of the spectrometer of the present invention;

[0017] Figure 2 This is a schematic diagram of the concentric assembly and adjustment of the spectrometer of the present invention.

[0018] Figure Labels

[0019] 1-Spectrometer; 2-Spectrometer concentric fixture; 3-Interferometer; 4-Theodolite; 5-Coordinate measuring machine marble platform; 6-Six-axis six-legged displacement stage; 7-Five-dimensional adjustment frame. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] A method for concentrically assembling a spectrometer includes the following steps:

[0023] Step 1, as follows Figure 1 As shown, after forming a cross target by pulling thin fishing line or thin metal wire at both ends of the concentric tooling, it is assembled into the frame of spectrometer 1 with the concentric tooling adapter plate using spring-loaded screws. The use of spring-loaded screws facilitates subsequent adjustments.

[0024] Step two, as Figure 1 As shown, the spectrometer 1 frame from step one is fixed to the marble platform 5 of the coordinate measuring machine using hot melt glue sticks. The position of the concentric fixture 2 is adjusted using a lever dial indicator so that the distance X from the center of the crosshair target to the upper reference surface of the spectrometer 1 frame and the distance Y from the center to the left reference surface of the spectrometer 1 frame are within the tolerances specified on the drawing. Then, the concentric fixture adapter plate is fixed to complete the concentric fixture assembly and adjustment. This reduces the impact of installation errors on the performance of the spectrometer and eliminates the need for repeated adjustments, saving labor costs.

[0025] Step 3, as Figure 2 As shown, the spectrometer 1 frame from step two is removed from the marble platform 5 of the coordinate measuring machine and fixedly installed on the six-axis six-legged displacement stage 6, so that the coordinates of the spectrometer 1 frame are orthogonally associated with the coordinates of the six-axis six-legged displacement stage 6. The spectrometer 1 is located between the theodolite 4 and the interferometer 3. The concentric fixture 2 is close to the side of the interferometer 3. The attitude of the theodolite 4 is adjusted so that the theodolite 4 and the concentric fixture 2 are coaxial, so that the image of the cross target on the concentric fixture 2 is placed inside the theodolite 4. The attitude angles of the theodolite 4 (pitch and horizontal) are recorded and fixed.

[0026] Step four, as Figure 2As shown, in step three, replace the standard lens of the interferometer 3 with a plane lens, adjust the five-dimensional adjustment frame 7 of the interferometer 3 until the image returned by the plane standard lens coincides with the image of the cross target built into the theodolite 4, then remove the standard plane lens of the interferometer 3, replace it with the standard lens, and move the interferometer 3 horizontally, vertically and horizontally until the focal point of the interferometer 3 can be seen from the theodolite 4 to coincide with the image of the cross target built into the theodolite 4.

[0027] The above method eliminates the need for repeated adjustments during assembly and setup, resulting in higher assembly and setup efficiency for the spectrometer, increased production capacity, and more precise application of the spectrometer.

[0028] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for concentric assembly and adjustment of a spectrometer, characterized in that, Includes the following steps: Step 1: After drawing a cross target on the concentric tooling (2), assemble it with the concentric tooling adapter plate into the frame of the spectrometer (1); Step 2: Detachably fix the spectrometer (1) frame from Step 1 onto the marble platform (5) of the coordinate measuring machine. Use a lever dial indicator to adjust the position of the concentric tooling (2) so that the distance X from the center of the cross target to the upper reference surface of the spectrometer (1) frame and the distance Y from the center to the left reference surface of the spectrometer (1) frame are within the tolerance specified on the drawing. Then fix the concentric tooling adapter plate to complete the concentric tooling installation and adjustment. Step 3: Remove the spectrometer (1) frame from the marble platform (5) of the coordinate measuring machine in Step 2 and fix it on the six-axis six-leg displacement stage (6) so that the coordinates of the spectrometer (1) frame are orthogonally related to the coordinates of the six-axis six-leg displacement stage (6). The spectrometer (1) is located between the theodolite (4) and the interferometer (3). The concentric fixture (2) is close to the side of the interferometer (3). Adjust the attitude of the theodolite (4) so ​​that the theodolite (4) and the concentric fixture (2) are coaxial, so that the image of the cross target on the concentric fixture (2) is placed inside the theodolite (4). Record the pitch and horizontal attitude angles of the theodolite (4) and fix it. Step 4: Replace the standard lens of the interferometer (3) in Step 3 with a plane lens, adjust the five-dimensional adjustment frame (7) of the interferometer (3) until the image returned by the plane standard lens coincides with the image of the cross target built into the theodolite (4), remove the standard plane lens of the interferometer (3), replace it with a standard lens, and move the interferometer (3) horizontally, vertically and horizontally until the focus of the interferometer (3) can be seen to coincide with the image of the cross target built into the theodolite (4) from the theodolite (4).

2. The method for concentric assembly and adjustment of a spectrometer according to claim 1, characterized in that, The method for pulling the wire on the concentric fixture in step one is as follows: use thin fishing line or thin metal wire to pull the wire at both ends of the concentric fixture to form a cross target.

3. The method for concentric assembly and adjustment of a spectrometer according to claim 1, characterized in that, The assembly method in step one is as follows: assembly is performed using screws with spring clips.

4. The method for concentric assembly and adjustment of a spectrometer according to claim 1, characterized in that, In step two, the detachable fixing method of the spectrometer (1) frame is to fix the four sides of the spectrometer (1) frame with hot melt glue sticks.

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