Novel atomic spectrum experimental device based on digital sensor

Abstract

The utility model discloses a novel atomic spectrum experimental device based on a digital sensor. The device comprises a light source; the incident guide frame is arranged on one side of the light source; a collimating lens is arranged on one side of the incident guide frame, an angle scale is arranged on one side of the collimating lens, a wireless rotation sensor is fixed to the front face of the angle scale, a grating is fixed to the middle of the upper end of the angle scale, a focusing lens is fixed to one side of the grating, and an emergent guide frame is fixed to one side of the focusing lens. And a wireless light intensity sensor is fixed on one side of the emergent guide frame. The utility model relates to an atomic spectrum experimental device, and aims to solve the problems that the existing atomic spectrum experimental device is basically designed in seven to eighty years in the last century, the design concept is old, the instrument structure is complex, the size is large, the maintenance is tedious, and the digitization and informatization of college physics experiment teaching and experimental instrument equipment required by the current teaching outline are seriously inconsistent.

Description

Technical Field

[0001] The utility model relates to the technical field of atomic spectrum experiments, in particular to a novel atomic spectrum experiment device based on a digital sensor. Background Art

[0002] The essence of light is also a kind of electromagnetic radiation, a form of motion of matter. It is the external manifestation of the internal motion of molecules and atoms of matter in the form of radiation energy. Atomic spectrum experiment is an important method to study atomic spectrum. By measuring and analyzing the spectrum released by the transition of atoms between different energy levels, important information about atomic structure, energy level distribution and electronic behavior can be obtained.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing atomic spectroscopy experimental equipment was basically designed in the 1970s and 1980s. It has outdated design concepts, complex instrument structures, large sizes, and cumbersome maintenance. It is seriously inconsistent with the current syllabus requirements for university physics experimental teaching and the digitization and informatization of experimental instruments and equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a novel atomic spectroscopy experimental device based on a digital sensor to solve the problems raised in the above-mentioned background technology, that is, the existing atomic spectroscopy experimental devices were basically designed in the 1970s and 1980s, with outdated design concepts, complex instrument structures, large volumes, and cumbersome maintenance, which are seriously inconsistent with the digitalization and informatization of university physics experimental teaching and experimental instruments and equipment required by the current teaching syllabus.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a novel atomic spectrum experimental device based on a digital sensor, comprising:

[0008] light source;

[0009] An incident guide frame, wherein the incident guide frame is arranged on one side of the light source;

[0010] A collimating lens is arranged on one side of the incident guide frame, and an angle disk is arranged on one side of the collimating lens, a wireless rotation sensor is fixed on the front of the angle disk, and a grating is fixed on the middle part of the upper end of the angle disk, a focusing lens is fixed on one side of the grating, and an exit guide frame is fixed on one side of the focusing lens, and a wireless light intensity sensor is fixed on one side of the exit guide frame.

[0011] Furthermore, an electric guide rail is fixed on a lower portion of one side of the light source, and an electric guide block is slidably disposed on one side of an upper end of the electric guide rail.

[0012] Furthermore, the electric guide block is arranged in a group, and the middle part of the upper end of one electric guide block is fixed to the lower end of the incident guide frame, and the upper end of another electric guide block is fixed to the lower end of the collimating lens.

[0013] Furthermore, the light source has bulbs that are equidistantly rotated, and the bulbs are mercury lamps, xenon lamps, hydrogen lamps, sodium lamps, argon lamps, and neon lamps.

[0014] Furthermore, the incident guide frame and the exit guide frame are provided with slits at the centers of the collimating lens and the focusing lens, and the collimating lens and the focusing lens are achromatic lenses with a focal length of 100 mm.

[0015] Furthermore, the wireless light intensity sensor is a Si photodetector with a wavelength range of 320-1100nm and three gears of X1, X10 and X100.

[0016] Furthermore, the wireless rotation sensor is a photoelectric encoder with an angular resolution of 0.18°.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model is that light emitted by a light source passes through a slit (the slit is located at the focus of a collimating lens) and becomes a very small light beam, which is incident on the collimating lens and becomes a parallel light beam that enters a grating. After being diffracted and split by the grating, parallel light beams of different wavelengths are emitted at different angles and converged on a light sensor by a focusing lens. By rotating the angle dial, the focusing lens and the light sensor rotate, and light energy of different diffraction angles θ can be detected. The utility model has a simple structure, is easy to operate, reduces subsequent maintenance costs, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is the appearance diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the working principle of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Light source; 2. Incident guide frame; 3. Collimating lens; 4. Grating; 5. Focusing lens; 6. Exit guide frame; 7. Wireless light intensity sensor; 8. Wireless rotation sensor; 9. Electric guide rail; 10. Electric guide block; 11. Angle disk. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1-2 As shown, this embodiment is a new type of atomic spectroscopy experimental device based on a digital sensor, comprising:

[0028] Light source 1;

[0029] Light source 1 provides the light required for the experiment;

[0030] The light source 1 has bulbs that rotate equidistantly, and the bulbs are mercury lamps, xenon lamps, hydrogen lamps, sodium lamps, argon lamps, and neon lamps;

[0031] The light source 1 is a variety of bulb structures, which can provide different lights to obtain different atomic spectra, which is beneficial to the experiment;

[0032] An electric guide rail 9 is fixed to the lower part of one side of the light source 1, and an electric guide block 10 is slidably disposed on one side of the upper end of the electric guide rail 9;

[0033] A group of electric guide blocks 10 are arranged, and the middle part of the upper end of one electric guide block 10 is fixed to the lower end of the incident guide frame 2, and the upper end of another electric guide block 10 is fixed to the lower end of the collimating lens 3;

[0034] The electric guide rail 9 carries out structural sliding on the electric guide block 10, which is beneficial for the connected incident guide frame 2 and collimating lens 3 to move and adjust the required position, while the electric slider 10 carries out structural installation and fixation on the collimating lens 3 and the incident guide frame 2;

[0035] An incident guide frame 2, which is arranged on one side of the light source 1;

[0036] The incident guide frame 2 and the exit guide frame 6 are provided with slits at the center of the collimating lens 3 and the focusing lens 5, and the collimating lens 3 and the focusing lens 5 are achromatic lenses with a focal length of 100 mm;

[0037] The incident guide frame 2 and the exit guide frame 6 are used to open and receive the slits, so as to convert the large light beam into a smaller light beam through the slits;

[0038] A collimating lens 3 is arranged on one side of the incident guide frame 2, and an angle disc 11 is arranged on one side of the collimating lens 3, a wireless rotation sensor 8 is fixed on the front of the angle disc 11, and a grating 4 is fixed on the middle part of the upper end of the angle disc 11, a focusing lens 5 is fixed on one side of the grating 4, and an exit guide frame 6 is fixed on one side of the focusing lens 5, and a wireless light intensity sensor 7 is fixed on one side of the exit guide frame 6;

[0039] The collimating lens 3 converts the incident light beam into a parallel light beam. The angle disc 11 fixes the grating 4, the focusing lens 5, the emission guide frame 6 and the wireless light intensity sensor 7 and can rotate to adjust the angle. The wireless rotation sensor 8 is used to measure the angular rotation. The grating 4 diffracts and splits the parallel light beam to emit parallel light beams of different wavelengths at different angles. The focusing lens 5 focuses the emitted light beam onto the wireless light intensity sensor 7. The wireless light intensity sensor 7 collects all incident light signals to restore the experiment. The emission guide frame 6 guides the light beam to be emitted through the slit.

[0040] The wireless light intensity sensor 7 is a Si photodetector with a wavelength range of 320-1100nm and three gears of X1, X10 and X100;

[0041] Different gears are selected for different experimental scenarios. The sensor receiving end adopts a light-guiding tube design, which can not only isolate the influence of external light, but also can incident the effective light signal on the Si photodetector as much as possible. In addition to the traditional USB communication method, Bluetooth transmission can also be selected to avoid interference of the transmission line on the experiment during the experiment;

[0042] The wireless rotation sensor 8 is a photoelectric encoder with an angular resolution of 0.18°;

[0043] The output of the electric encoder consists of two TTL digital pulses, according to which the direction can be determined and the rotation angle can be calculated. It has two communication modes: Bluetooth and USB.

[0044] Working principle:

[0045] In advance, the light source 1 is selected according to the needs. The built-in bulb of the light source 1 can be selected as a mercury lamp, a xenon lamp, a hydrogen lamp, a sodium lamp, an argon lamp or a neon lamp. After the light source is selected;

[0046] At this time, the generated light beam is formed into a smaller light beam through the slit on the incident guide frame 2, and the smaller light beam is incident on the collimating lens 3, and is transformed into a parallel light beam, and is incident on the grating 4. After the action of the grating 4, it is diffracted and split, so that parallel light beams of different wavelengths are emitted at different angles;

[0047] Next, the focusing lens 5 converges the light onto the wireless light intensity sensor 7, and the controlled angle plate 11 rotates, so that the focusing lens 5 and the wireless light intensity sensor 7 rotate accordingly. The wireless light intensity sensor 7 receives and collects effective light signals, and wirelessly uploads them to the host computer to complete the experiment.

[0048] During the experiment, the wireless rotation sensor 8 uses a photoelectric encoder to convert the mechanical geometric displacement on the output shaft into digital pulses. The output of the photoelectric encoder consists of two TTL digital pulses. The direction can be determined and the rotation angle can be calculated based on the two digital pulses.

[0049] This step can detect light energy at different diffraction angles θ, has a simple structure, is easy to operate, reduces subsequent maintenance costs, and is easy to use.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of atomic spectroscopy experimental device based on digital sensor, characterized in that: include: Light source (1); An incident guide frame (2), the incident guide frame (2) being arranged on one side of the light source (1); A collimating lens (3) is arranged on one side of the incident guide frame (2), and an angle disc (11) is arranged on one side of the collimating lens (3); a wireless rotation sensor (8) is fixed on the front of the angle disc (11), and a grating (4) is fixed in the middle of the upper end of the angle disc (11); a focusing lens (5) is fixed on one side of the grating (4), and an exit guide frame (6) is fixed on one side of the focusing lens (5); and a wireless light intensity sensor (7) is fixed on one side of the exit guide frame (6).

2. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 1, characterized in that: An electric guide rail (9) is fixed to the lower part of one side of the light source (1), and an electric guide block (10) is slidably disposed on one side of the upper end of the electric guide rail (9).

3. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 2, characterized in that: The electric guide block (10) is arranged in a group, and the middle part of the upper end of one electric guide block (10) is fixed to the lower end of the incident guide frame (2), and the upper end of another electric guide block (10) is fixed to the lower end of the collimating lens (3).

4. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 1, characterized in that: The light source (1) has bulbs that are rotated at equal intervals, and the bulbs are mercury lamps, xenon lamps, hydrogen lamps, sodium lamps, argon lamps, or neon lamps.

5. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 1, characterized in that: The incident guide frame (2) and the exit guide frame (6) are provided with slits relative to the center of the collimating lens (3) and the focusing lens (5), and the collimating lens (3) and the focusing lens (5) are achromatic lenses with a focal length of 100 mm.

6. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 1, characterized in that: The wireless light intensity sensor (7) is a Si photoelectric detector with a wavelength range of 320-1100 nm and three gears of X1, X10 and X100.

7. A novel atomic spectroscopy experimental device based on a digital sensor according to claim 1, characterized in that: The wireless rotation sensor (8) is a photoelectric encoder with an angular resolution of 0.18°.

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