CN103903499B - Polarimeter teaching mode - Google Patents

Abstract

The invention discloses a polarimeter teaching model, which comprises a suitcase and a case cover. A left flap and a right flap are installed on the left and right sides of the suitcase lid respectively; the left flap, the case cover and the right A light source, a simulated polarizer, a simulated optical rotation tube, a simulated analyzer and a screen are sequentially installed on the side flap, and can be disassembled and assembled separately. The invention can intuitively simulate each process and basic principle of the polarimeter, enables students to quickly understand and master the knowledge and application of the polarimeter, reduces teaching difficulty, and improves learning efficiency. The invention has portability, can disassemble and assemble the left flap of the box lid, the right flap of the box lid and each component respectively and put them into the suitcase, has good portability, is very convenient and practical.

Description

Polarimeter teaching model

technical field

The invention relates to the technical field of polarimeters, in particular to a teaching model capable of visually learning the polarimeter.

Background technique

With the popularity of automated instruments, the operation of instruments in experimental teaching tends to be more and more one-button operation, and the basic principles of instruments are gradually covered up, so that students can only simulate this process in their imagination, which makes some students feel difficult , so it is necessary to have a device that can clearly demonstrate the principle of the instrument.

Contents of the invention

The invention aims at the disadvantage that the existing polarimeter is not suitable for beginners to intuitively understand its application principle and process, and provides a teaching model suitable for beginners to quickly understand and master the polarimeter.

To achieve the above object, the present invention adopts the following technical solutions:

A polarimeter teaching model, including a suitcase and a case cover. The left and right sides of the case cover of the suitcase are respectively hinged or movably installed with a left flap of the case lid and a right flap of the case lid; The board and the flap on the right side of the cover can be stacked in the suitcase; on the flap on the left side of the cover, there are fixed light sources and simulated polarizers in sequence from left to right, and on the inner surface of the cover from left to right. The simulated polarizer and the simulated polarizer are provided with a screen on the flap on the right side of the case cover; the light source, the simulated polarizer, the simulated polarizer, the simulated analyzer and the screen are on the same horizontal plane in turn, and can be separately Disassembly and assembly.

The above-mentioned left and right directions are not limited, and may also be a light source, a simulated polarizer, a simulated optical rotation tube, a simulated analyzer and a screen from right to left.

The simulated polarizer is provided with a plurality of strip-shaped small holes on the grid plate; a slot is provided on the inner side of the case cover, and the simulated optical rotation tube is matched and positioned in the slot; the simulated optical rotation tube is respectively provided with The left reflector and the right reflector, the left reflector forms an angle α with the upper side of the simulated optical rotation tube, the right reflector forms an included angle β with the lower side of the simulated optical rotation tube, and the lower edge of the left reflector is higher than the upper side of the right reflector edge; the simulated polarizer is a sieve plate that can rotate on its plane, and the shape and size of the sieve holes are consistent with the simulated polarizer; the sieve plate is provided with an arc-shaped slide rail, and a bracket, and the arc-shaped slide rail There is a handle on the top that can adjust the rotation angle of the analog analyzer.

Beneficial effects of the present invention:

1. The present invention can intuitively simulate each process and basic principle of the polarimeter, enabling students to quickly understand and master the knowledge and application of the polarimeter, reducing the difficulty of teaching and improving learning efficiency.

2. The present invention has portability, can disassemble and assemble the left flap of the case lid, the right flap of the case lid, and each component respectively, and can be put into a suitcase. The portability is good, and it is very convenient and practical.

Description of drawings

Fig. 1 is the structural representation of polarimeter of the present invention;

Fig. 2 is a schematic diagram of the side structure of the simulated polarizer in Fig. 1;

Fig. 3 is the sectional structure schematic diagram of analog optical rotation tube in Fig. 1;

Fig. 4 is a schematic diagram of the side structure of the simulated analyzer in Fig. 1;

FIG. 5 is a state diagram of sequentially changing light spots in FIG. 1 .

The number 1 in the figure is the light source, 2 is the simulated polarizer, 3 is the simulated optical rotation tube, 4 is the simulated analyzer, 5 is the screen, 6 is the suitcase, 7 is the case cover, 8 is the flap on the left side of the case cover, 9 is the flap on the right side of the case cover, 10 is a draw-in groove, 11 is an arc slide rail, 12 is a left reflector, 13 is a right reflector, 14 is a support, and 15 is a handle.

Detailed ways:

The present invention will be further described below in conjunction with accompanying drawing.

A polarimeter teaching model, referring to Fig. 1, includes a suitcase 6 and a case cover 7, and the left and right sides of the case cover 7 of the suitcase are respectively hinged or movably installed with a flap 8 on the left side of the case cover and a right side of the case cover Turnover plate 9, and the left side turning plate 8 of the case lid and the right side turning plate 9 of the case lid can be stacked in the suitcase 6.

On the flap 8 on the left side of the box cover, there are light source 1 and analog polarizer 2 from left to right. The light source 1 can be a strong flashlight or laser, but the laser is better than the strong light flashlight, and the boundary of the effect picture is clearer and brighter. . The simulated polarizer 2 is composed of a grid plate engraved with several strip-shaped small holes, as shown in Figure 2, which is used to change the cylindrical beam into a layered beam to obtain simulated polarized light. The effect picture on the screen 5 is composed of a The overall solid light spot becomes several striped light spots, see the process from a to b in Figure 5.

The simulated optical rotation tube 3 and the simulated polarizer 4 are sequentially arranged on the inner surface of the case cover 7 from left to right, and the rear side of the simulated optical rotation tube 3 is provided with a slot 10, which is fixed on the case cover, and the simulated optical rotation tube 3 is It is composed of a straight or S-shaped pipe and two mirrors, see Figure 3, the left mirror 12 forms an angle α with the upper side of the simulated optical tube 3, and the right mirror 13 forms a clamp with the lower side of the simulated optical tube 3 Angle β, and the lower edge of the left mirror 12 is higher than the upper edge of the right mirror 13. Its function is to deflect the simulated polarized light at a certain angle on its cross section with the optical path as the axis, so as to obtain the simulated optical rotation effect. The effect diagrams on the screen 5 are from b to c in FIG.

Referring to Fig. 4, the simulated polarizer 4 is a sieve plate that can rotate on its plane, and the shape and size of the sieve holes are consistent with the simulated polarizer 2, and the sieve plate is installed on an arc-shaped slide rail 11 with a handle on it 15. The deflection angle of the sieve plate can be adjusted by the handle to obtain the simulated deflection analysis effect. The effect diagram on the screen 5 is the mutual change from d to e in Fig. 5.

The screen 5 that is provided with on the flap 9 on the right side of the case cover is made of a silver-white curtain or a whiteboard, and its effect is to show the spot.

The light source 1, the simulated polarizer 2, the simulated optical rotation tube 3, the simulated analyzer 4 and the screen 5 can all be easily disassembled, allowing students to more intuitively experience the difference between missing key components.

Claims (6)

1. a polarimeter teaching mode, comprises suitcase and case lid, it is characterized in that: hinged or to be movably installed with on the left of case lid turnover panel on the right side of turnover panel and case lid respectively at the left and right side of the case lid of suitcase; On the left of case lid, on the right side of turnover panel and case lid, turnover panel can overlay in suitcase; Turnover panel is fixed with from left to right successively light source and simulation polarizer on the left of case lid, sets gradually simulation polarization tube and simulation analyzer from left to right at case lid inside surface, on the right side of case lid, turnover panel arranges screen; Described light source, simulation polarizer, simulation polarization tube, simulation analyzer and screen successively in same level, and can be dismantled separately and assemble respectively.

2. polarimeter teaching mode according to claim 1, is characterized in that: described simulation polarizer is provided with many bar shaped apertures on screen.

3. polarimeter teaching mode according to claim 1, is characterized in that: case lid medial surface is provided with draw-in groove, and described simulation polarization tube Matching installation is also positioned in draw-in groove.

4. polarimeter teaching mode according to claim 3, it is characterized in that: in described simulation polarization tube, be respectively arranged with nearside mirror and right reflective mirror, angle α is produced on the upside of nearside mirror and simulation polarization tube, produce angle β on the downside of right reflective mirror and simulation polarization tube, and the lower edge of nearside mirror is higher than the upper limb of right reflective mirror.

5. polarimeter teaching mode according to claim 1, is characterized in that: described simulation analyzer is a sieve plate that can rotate in its plane, and its sieve aperture shape size is consistent with simulation polarizer.

6. polarimeter teaching mode according to claim 5, is characterized in that: described sieve plate arranges arc-shaped slide rail, and arranges support, arc-shaped slide rail is equipped with the handle that can regulate the simulation analyzer anglec of rotation.