CN204990946U - Physical experiment table - Google Patents
Physical experiment table Download PDFInfo
- Publication number
- CN204990946U CN204990946U CN201520496037.8U CN201520496037U CN204990946U CN 204990946 U CN204990946 U CN 204990946U CN 201520496037 U CN201520496037 U CN 201520496037U CN 204990946 U CN204990946 U CN 204990946U
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- China
- Prior art keywords
- demonstration device
- laser generator
- analyzer
- table top
- signal receiver
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Abstract
The utility model discloses a physical experiment table, including mesa, laser generator, signal receiver and light signal analyzer, laser generator and signal receiver fix at the mesa both ends, and plane central authorities are provided with the mesa track along length direction on the mesa, the mesa track is of each other parallel with the line between laser generator and the signal receiver, is provided with to interfere diffraction demonstration ware and polarized light demonstration ware on the mesa track, interference diffraction demonstration ware includes the demonstration ware base with mesa track sliding connection, be provided with a plurality of removal spouts body above demonstration ware base, set up flutedly at demonstration ware base side, diffraction demonstration ware and polarized light demonstration ware are interfered through being provided with to this device, the interference of light diffraction is tested and the polarization of light experiment in can carrying out physical teaching, and control is convenient, the experiment effect is obvious, teaching effects is directly perceived, the interest of student to physics study has been promoted greatly, be fit for using widely in the school.
Description
Technical field
The utility model relates to teaching equipment field, specifically a kind of physical experiment table.
Background technology
In physics teaching, experiment for light has interference diffraction experiment and the polarisation of light experiment of light, in current school, physical experiment table is simpler and cruder, experiment for light normally " observes the diffraction phenomena of light " or " observing two-slit interference, single slit diffraction phenomenon with cone " with slide calliper rule, operation not easily and observe phenomena is not obvious, can only be undertaken by bookish introduction especially for polarisation of light, greatly affect the learning interest of student for physics.
Utility model content
The purpose of this utility model is to provide a kind of physical experiment table, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of physical experiment table, comprise table top, laser generator, signal receiver and optical signal analyzer, described laser generator and signal receiver are fixed on table top two ends, on table top, plane central is provided with table top track along its length, described table top track and the line between laser generator and signal receiver parallel to each other, table top track is provided with interference diffraction demonstration device and polarized light demonstration device, described interference diffraction demonstration device comprises the demonstration device base be dynamically connected with table top track sliding, some mobile chute bodies are provided with above demonstration device base, groove is offered in demonstration device chassis side, interference diffraction plate and demonstration board is respectively arranged with above mobile chute body, mobile chute body offers chute along its length, described interference diffraction plate offers multiple round screen and single seam, described polarized light demonstration device comprises housing and is arranged on front lens, the rear lens at housing two ends, four pieces of plugboards are plugged with at polarisation demonstration device case inside, four pieces of plugboards are disposed with the polarizer, quarter wave plate, light tool platform and analyzer, the described polarizer, quarter wave plate and analyzer and plugboard are rotationally connected, the described polarizer and analyzer are polaroid, and described laser generator and signal receiver are connected with optical signal analyzer, described optical signal analyzer comprises silicon photocell, and silicon photocell connects I/V translation circuit, filtering circuit, 16 A/D converters and microprocessor, digital filter and 5 half digital displays successively, the microprocessor other end connects intensity modulation circuit, and intensity modulation circuit connects silicon photocell.
As further program of the utility model: described multiple round screen reduces gradually from interference diffraction plate mediad outside diameter, the center of circle of multiple round screen is in same level, and described multiple single seam reduces gradually from interference diffraction plate mediad outside width.
As the utility model further scheme: described front lens and rear lens are circular flat lens.
As the utility model further scheme: the center of circle of described front lens and rear lens is positioned on the line of laser generator and signal receiver.
Compared with prior art, the beneficial effects of the utility model are: this device is by being provided with interference diffraction demonstration device and polarized light demonstration device, interference diffraction experiment and the polarisation of light experiment of light in physics teaching can be carried out, and control conveniently, experiment effect is obvious, teaching efficiency is directly perceived, greatly improves the interest of student for Physics Learning, is adapted at school and promotes the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is the structural representation of polarized light demonstration device in the utility model.
Fig. 4 is the structural representation of interference diffraction plate in the utility model.
Fig. 5 is the circuit composition schematic diagram of optical signal analyzer in the utility model.
1-laser generator in figure, 2-interference diffraction demonstration device, 21-demonstration device table top, 22-groove, 23-moves chute body, 24-interference diffraction plate, 241-round screen, the mono-seam of 242-, 25-demonstration board, 3-polarized light demonstration device, 31-front lens, 32-rear lens, 33-plugboard, the 34-polarizer, 35-1/4 wave plate, 36-light tool platform, 37-analyzer, 4-signal receiver, 5-table top, 51-table top track, 6-optical signal analyzer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 5, in the utility model embodiment, a kind of physical experiment table, comprise table top 5, laser generator 1, signal receiver 4 and optical signal analyzer 6, described laser generator 1 and signal receiver 4 are fixed on table top 5 two ends, on table top 5, plane central is provided with table top track 51 along its length, described table top track 51 and the line between laser generator 1 and signal receiver 4 parallel to each other, table top track 51 is provided with interference diffraction demonstration device 2 and polarized light demonstration device 3, described interference diffraction demonstration device 2 comprises the demonstration device base 21 be slidably connected with table top track 51, some mobile chute bodies 23 are provided with above demonstration device base 21, groove 22 is offered at demonstration device base 21 side, mobile chute body 23 can move on demonstration device base 21 along groove 22 track, interference diffraction plate 24 and demonstration board 25 is respectively arranged with above mobile chute body 23, mobile chute body 23 offers chute along its length, described interference diffraction plate 24 and demonstration board 25 can move along described chute, described interference diffraction plate 24 offers multiple round screen 241 and single seam 242, described multiple round screen 241 reduces gradually from interference diffraction plate 24 mediad outside diameter, the center of circle of multiple round screen 241 is in same level, and described multiple single seam 242 reduces gradually from interference diffraction plate 24 mediad outside width, when the interference diffraction experiment carrying out light, interference demonstrated by the interference image formed on demonstration board 25 under the interference of the light sent by laser generator 1 round screen 241 on interference diffraction plate 24, diffraction phenomena demonstrated by the diffracting shade picture formed on demonstration board 25 under the interference of the light sent by laser generator 1 single seam 242 on interference diffraction plate 24, and an interference diffraction plate 24 can be installed additional to carry out the Germicidal efficacy of two-slit diffraction, by bottom surface track 51, groove 22 and mobile chute body 23 carry out the position adjustments between interference diffraction plate 24 and demonstration board 25, the interference of light diffraction phenomena experiment under different condition can be realized,
Described polarized light demonstration device 3 comprises housing and is arranged on the front lens 31 at housing two ends, rear lens 32, described front lens 31 and rear lens 32 are circular flat lens, and the center of circle of front lens 31 and rear lens 32 is positioned at laser generator 1 with on the line of signal receiver 4, four pieces of plugboards 33 are plugged with at polarisation demonstration device 3 case inside, four pieces of plugboards 33 are disposed with the polarizer 34, quarter wave plate 35, light tool platform 36 and analyzer 37, the described polarizer 34, quarter wave plate 35 and analyzer 37 are rotationally connected with plugboard 33, the described polarizer 34 and analyzer 37 are polaroid, described laser generator 1 and signal receiver 4 are connected with optical signal analyzer 6, when carrying out polarized light experiment, optical signal analyzer 6 access power is reset, close laser generator 1, regulate optical signal analyzer 6 to make the reading of optical signal analyzer 6 be zero, then open laser generator 1, rotate the polarizer 34, observe the reading on optical signal analyzer 6, stop at one and be less than on the large reading of friendship of 1, then rotate analyzer 37, stop when the reading of optical signal analyzer 6 is zero, record analyzer 37 surveys angle and power meter reading, rotate analyzer 37 in the same direction, often rotate the reading of 15 ° of recording light signal analyzers 6, rotating analyzer 37 makes the reading of optical signal analyzer 6 be zero, quarter wave plate 35 is inserted between the polarizer 34 and analyzer 37, and rotating quarter wave plate 35, to make optical signal analyzer 6 reenter reading be zero condition, now the optical axis of quarter wave plate 35 is parallel with the polarization direction of the polarizer 34, then quarter wave plate 3515 ° is rotated, after the reading of recording light signal analyzer 6 and the angle of analyzer 37, rotate analyzer 37360 °, the limit reading of optical signal analyzer 6 and the angle of corresponding analyzer 37 in record rotation process, rotate each 15 ° of quarter wave plate 35 in the same direction, repeat work of drilling, described optical signal analyzer 6 comprises silicon photocell, and silicon photocell connects I/V translation circuit, filtering circuit, 16 A/D converters and microprocessor, digital filter and 5 half digital displays successively, the microprocessor other end connects intensity modulation circuit, and intensity modulation circuit connects silicon photocell, silicon photocell induction light signal, changes into current signal, and this current signal is carried out I/V conversion, amplify, filtering, sampled by 16 A/D converters, to obtain data is sent in microprocessor, and microprocessor carries out a process part and carries out intensity modulation, and a part carries out digital filtering, by digital filtering 5 half digital display displays, return to silicon photocell by the signal of intensity modulation, when carrying out polarized light experiment, interference diffraction plate 24 and demonstration board 25 can be taken off from mobile chute body 23, avoiding impact experiment.
Principle of work of the present utility model is: this device is by being provided with interference diffraction demonstration device 2 and polarized light demonstration device 3, interference diffraction experiment and the polarisation of light experiment of light in physics teaching can be carried out, and control conveniently, experiment effect is obvious, teaching efficiency is directly perceived, greatly improve the interest of student for Physics Learning, be adapted at school and promote the use of.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. a physical experiment table, comprise table top, laser generator, signal receiver and optical signal analyzer, it is characterized in that, described laser generator and signal receiver are fixed on table top two ends, on table top, plane central is provided with table top track along its length, described table top track and the line between laser generator and signal receiver parallel to each other, table top track is provided with interference diffraction demonstration device and polarized light demonstration device, described interference diffraction demonstration device comprises the demonstration device base be dynamically connected with table top track sliding, some mobile chute bodies are provided with above demonstration device base, groove is offered in demonstration device chassis side, interference diffraction plate and demonstration board is respectively arranged with above mobile chute body, mobile chute body offers chute along its length, described interference diffraction plate offers multiple round screen and single seam, described polarized light demonstration device comprises housing and is arranged on front lens, the rear lens at housing two ends, four pieces of plugboards are plugged with at polarisation demonstration device case inside, four pieces of plugboards are disposed with the polarizer, quarter wave plate, light tool platform and analyzer, the described polarizer, quarter wave plate and analyzer and plugboard are rotationally connected, the described polarizer and analyzer are polaroid, and described laser generator and signal receiver are connected with optical signal analyzer, described optical signal analyzer comprises silicon photocell, and silicon photocell connects I/V translation circuit, filtering circuit, 16 A/D converters and microprocessor, digital filter and 5 half digital displays successively, the microprocessor other end connects intensity modulation circuit, and intensity modulation circuit connects silicon photocell.
2. a kind of physical experiment table according to claim 1, it is characterized in that, described multiple round screen reduces gradually from interference diffraction plate mediad outside diameter, and the center of circle of multiple round screen is in same level, and described multiple single seam reduces gradually from interference diffraction plate mediad outside width.
3. a kind of physical experiment table according to claim 2, is characterized in that, described front lens and rear lens are circular flat lens.
4. a kind of physical experiment table according to claim 1, is characterized in that, the center of circle of described front lens and rear lens is positioned on the line of laser generator and signal receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496037.8U CN204990946U (en) | 2015-07-10 | 2015-07-10 | Physical experiment table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496037.8U CN204990946U (en) | 2015-07-10 | 2015-07-10 | Physical experiment table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204990946U true CN204990946U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520496037.8U Expired - Fee Related CN204990946U (en) | 2015-07-10 | 2015-07-10 | Physical experiment table |
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| Country | Link |
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| CN (1) | CN204990946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816072A (en) * | 2016-04-13 | 2017-06-09 | 刘召新 | A kind of experiment instrument and method of the interference and diffraction fringe spacing for measuring light |
| CN108877437A (en) * | 2018-07-24 | 2018-11-23 | 温州任和文化创意有限责任公司 | A kind of diffraction experiment by narrow opening instrument |
-
2015
- 2015-07-10 CN CN201520496037.8U patent/CN204990946U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816072A (en) * | 2016-04-13 | 2017-06-09 | 刘召新 | A kind of experiment instrument and method of the interference and diffraction fringe spacing for measuring light |
| CN108877437A (en) * | 2018-07-24 | 2018-11-23 | 温州任和文化创意有限责任公司 | A kind of diffraction experiment by narrow opening instrument |
| CN108877437B (en) * | 2018-07-24 | 2020-04-17 | 温州任和文化创意有限责任公司 | Single slit diffraction experimental instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20160710 |