Atomic absorption spectrum science popularization teaching aid

Abstract

The utility model belongs to the technical field of atomic spectrometers, and particularly relates to a science popularization teaching aid for atomic absorption spectroscopy, which comprises an operation table, a movable mechanism and a transparent window, the operation table comprises a table top, an operation panel, a light source and a fixed lens, the operation panel is arranged in the center of the front side of the table top, and the light source is arranged on the left side of the top of the table top. A fixed lens is arranged in the center of the top of the tabletop; the movable mechanism is arranged on the left side of the top of the table top and comprises a support, a guide rod, a lead screw, a driving part, a movable block and a movable lens, the guide rod and the lead screw are arranged on the support, the outer end of the lead screw is connected with the driving part, the interestingness of the teaching process can be improved, and the learning interest of students is increased; through a visual and interactive mode, students can deeply understand the principle of the analysis technology of the instrument; the teaching aid can be used as a science popularization teaching aid to help common people to improve scientific literacy.

Description

Technical Field

[0001] The utility model relates to the technical field of atomic spectrometers, in particular to a popular science teaching aid for atomic absorption spectra. Background Art

[0002] Instrumental analysis methods are required courses for students and postgraduates in science and engineering departments such as chemistry, materials, environment, earth and space. Atomic spectroscopy, as a commonly used instrumental analysis method, is widely used in the quantitative analysis of metal element content in the fields of chemical materials, environmental hygiene, food safety, and new energy. Students' in-depth understanding of the principles of instrumental analysis technology will help them better apply this method to research in different fields.

[0003] However, today's large instruments are like a black box, and it is impossible to directly observe the direction of the internal light path. It is difficult for students to deeply understand the corresponding instrumental analysis methods through abstract principle knowledge. For this reason, this application proposes a popular science teaching aid for atomic absorption spectroscopy. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or problems existing in existing atomic spectrometers, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a popular science teaching aid of atomic absorption spectroscopy, which can enhance the fun of the teaching process and increase students' interest in learning; through a visual and interactive way, students can deeply understand the principles of the instrumental analysis technology; it can be used as a popular science teaching aid to help ordinary people improve their scientific literacy.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A popular science teaching aid for atomic absorption spectroscopy, comprising:

[0009] An operating table, comprising a table top, an operating panel, a light source and a fixed lens, wherein the operating panel is arranged at the center of the front side of the table top, the light source is arranged at the left side of the top of the table top, and the fixed lens is arranged at the center of the top of the table top;

[0010] A movable mechanism is arranged on the left side of the top of the table, and the movable mechanism includes a bracket, a guide rod, a screw rod, a driving component, a movable block and a movable lens. The bracket is provided with a guide rod and a screw rod, the outer end of the screw rod is connected to the driving component, the movable block is connected between the guide rod and the screw rod, and the top of the movable block is provided with a movable lens corresponding to the fixed lens;

[0011] A transparent window is covered on the top of the table, and a groove corresponding to the operation panel is opened on the front side of the transparent window.

[0012] As a preferred solution of the popular science teaching aid of atomic absorption spectrum described in the utility model, wherein: the light source adopts multiple laser lamps, and the multiple laser lamps adopt hollow cathode lamps representing different elements.

[0013] As a preferred solution of the popular science teaching aid of atomic absorption spectroscopy described in the utility model, the fixed lens and the movable lens are both arranged at an angle of 45 degrees, and the fixed lens and the movable lens are arranged vertically.

[0014] As a preferred solution of the popular science teaching aid of atomic absorption spectroscopy described in the utility model, wherein: control buttons of different colors are arranged on the operation panel.

[0015] As a preferred solution of the popular science teaching aid of atomic absorption spectroscopy described in the utility model, the transparent window is an explosion-proof acrylic window.

[0016] Compared with the prior art: the utility model adopts a transparent window, so that students can observe the internal working status together. The driving component drives the lead screw to rotate, and the lead screw drives the movable lens to move, thereby changing the reflected light path. Students can deeply understand the working principle of the atomic absorption spectrometer by operating and seeing the direction of the light path. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the operating table of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the activity mechanism of the utility model.

[0021] In the figure: 100 operating table, 110 table top, 120 operating panel, 130 light source, 140 fixed lens, 200 movable mechanism, 210 bracket, 220 guide rod, 230 lead screw, 240 driving component, 250 movable block, 260 movable lens, 300 transparent window, 310 groove. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] 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.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] 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.

[0026] This utility model provides a popular science teaching aid of atomic absorption spectroscopy, which can enhance the fun of the teaching process and increase students' interest in learning. Through visualization and interactive methods, students can deeply understand the principle of the instrument analysis technology. It can be used as a popular science teaching aid to help ordinary people improve their scientific literacy. Figure 1-Figure 3 , including: an operating table 100, a movable mechanism 200 and a transparent window 300.

[0027] The operating table 100 includes a table top 110, an operating panel 120, a light source 130 and a fixed lens 140. The operating panel 120 is arranged at the front center of the table top 110, the light source 130 is arranged at the left side of the top of the table top 110, and the fixed lens 140 is arranged at the top center of the table top 110;

[0028] The light source 130 emits light. The light source 130 uses three laser lamps. The three laser lamps use hollow cathode lamps representing different elements and can emit lasers of different colors, which is convenient for students to observe and distinguish.

[0029] The movable mechanism 200 is arranged on the left side of the top of the table 110. The movable mechanism 200 includes a bracket 210, a guide rod 220, a screw rod 230, a driving component 240, a movable block 250 and a movable lens 260. The guide rod 220 and the screw rod 230 are arranged on the bracket 210. The outer end of the screw rod 230 is connected to the driving component 240. The movable block 250 is connected between the guide rod 220 and the screw rod 230. The movable lens 260 corresponding to the fixed lens 140 is arranged on the top of the movable block 250.

[0030] The driving component 240 uses a reduction motor, which drives the screw rod 230 to rotate and provides power for thread feeding. The movable block 250 drives the movable lens 260 to move to the corresponding position of the light source 130 to reflect the light.

[0031] The transparent window 300 is covered on the top of the table 110, and a groove 310 corresponding to the operation panel 120 is opened on the front side of the transparent window 300;

[0032] The groove 310 is a concave structure, and the operation panel 120 is located in the groove 310, so that the operation panel 120 is located outside the transparent window 300 for students to operate.

[0033] Since light travels in a straight line, in order to ensure that the light can be reflected between the fixed lens 140 and the movable lens 260, the fixed lens 140 and the movable lens 260 are both inclined at 45 degrees, and the fixed lens 140 and the movable lens 260 are vertically arranged;

[0034] The light emitted by the light source 130 is irradiated on the movable lens 260 , and is reflected by the movable lens 260 and irradiated on the fixed lens 140 .

[0035] In order to facilitate students to distinguish, control buttons of different colors are provided on the operation panel 120. Students can distinguish each control button according to the color, which is convenient for control operations.

[0036] In order to improve safety and prevent the transparent window 300 from breaking and injuring people, the transparent window 300 adopts an explosion-proof acrylic window, which has an explosion-proof effect and avoids explosion damage.

[0037] During specific use, at the beginning, the movable lens 260 is located at the left end of the guide rod 220, corresponding to the leftmost light source 130. The light source 130 emits light, which is reflected by the movable lens 260 and reflected onto the fixed lens 140. The driving component 240 drives the screw rod 230 to rotate, and the movable block 250 drives the movable lens 260 to move, so that the movable lens 260 moves to the right, corresponding to the subsequent light source 130, and reflects the subsequent light. Students can observe the position of the movable lens 260 and the reflection path of the light, see the direction of the light path, and have an in-depth understanding of the working principle of the atomic absorption spectrometer.

[0038] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A popular science teaching aid for atomic absorption spectroscopy. It is characterized in that include: An operating table (100) comprises a table top (110), an operating panel (120), a light source (130) and a fixed lens (140), wherein the operating panel (120) is arranged at the center of the front side of the table top (110), the light source (130) is arranged at the left side of the top of the table top (110), and the fixed lens (140) is arranged at the center of the top of the table top (110); A movable mechanism (200) is arranged on the left side of the top of the table (110), the movable mechanism (200) comprising a bracket (210), a guide rod (220), a screw rod (230), a driving component (240), a movable block (250) and a movable lens (260), the bracket (210) being provided with a guide rod (220) and a screw rod (230), the outer end of the screw rod (230) being connected to the driving component (240), the movable block (250) being connected between the guide rod (220) and the screw rod (230), and the top of the movable block (250) being provided with a movable lens (260) corresponding to the fixed lens (140); A transparent window (300) is covered on the top of the table (110), and a groove (310) corresponding to the operation panel (120) is formed on the front side of the transparent window (300).

2. The popular science teaching aid of atomic absorption spectroscopy according to claim 1, It is characterized in that The light source (130) uses a plurality of laser lamps, and the plurality of laser lamps use hollow cathode lamps representing different elements.

3. The popular science teaching aid of atomic absorption spectroscopy according to claim 1, It is characterized in that The fixed lens (140) and the movable lens (260) are both arranged at an inclination of 45 degrees, and the fixed lens (140) and the movable lens (260) are arranged vertically.

4. The popular science teaching aid of atomic absorption spectroscopy according to claim 1, It is characterized in that The operation panel (120) is provided with control buttons of different colors.

5. The popular science teaching aid of atomic absorption spectroscopy according to claim 1, It is characterized in that The transparent window (300) is made of an explosion-proof acrylic window.

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