CN107256669A - Mirage phenomenon transmits track experimental demonstration device with bending of light - Google Patents
Mirage phenomenon transmits track experimental demonstration device with bending of light Download PDFInfo
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- CN107256669A CN107256669A CN201710542423.XA CN201710542423A CN107256669A CN 107256669 A CN107256669 A CN 107256669A CN 201710542423 A CN201710542423 A CN 201710542423A CN 107256669 A CN107256669 A CN 107256669A
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
A kind of mirage phenomenon transmits track experimental demonstration device with bending of light, tank is provided with base, base upper flume rear is provided with the laser on laser stent, left part sealing is provided with first dividing plate perpendicular with tank front-rear side walls in tank, right part sealing is provided with the second partition perpendicular with tank front and rear wall, the left side wall of first dividing plate and tank, front and rear wall formation bosh, the right side wall of second partition and tank, front and rear wall is contrasted tank, the front-rear side walls formation mirage tank of first dividing plate and second partition and tank, closed set has semiconductor-on-insulator cooling piece and lower semiconductor cooling piece on the vertical direction of the first dividing plate, sealing is provided with gradient plate on the front-rear side walls away from tank at first 5~10cm of dividing plate in mirage tank, tank rear and mirage tank and contrast tank just to the two first observation bodies and second that are respectively arranged on the base with observe body, the present invention is reasonable in design, it is simple in construction, demonstrating effect is more directly perceived.
Description
Technical field
The invention belongs to physics experiment teaching Instrument technology field, and in particular to curved to a kind of mirage phenomenon and light
Song transmission track experimental demonstration device.
Background technology
Mirage is the virtual image of the sunshine through object formed by atmospheric refraction that object reflects on the earth.Its generation
It is under the conditions of specific weather situation and meteorology, to have close ties with geographical position, Geophysical Condition.Due to time of occurrence
It is short, accurately record less, region is fluid, there is very big mysteriousness.This understands mirage to student and the public and formed
Principle cause very big difficulty.
" mirage " phenomenon is demonstrated using graded index is set up in liquid, is unique experiment both at home and abroad at present
Demenstration method.Its feature is all that the natural dissolving of salt in harge granules (or sugar) is placed using bottom of gullet, is formed hang down in the sink
Nogata to concentration gradient, according to strength of fluid and the relation of refractive index, obtain Graded-index medium.But it exists following
The problem of several respects：First, salt in harge granules (or sugar) dissolves to be formed naturally requires that the time of concentration gradient is very long, generally requires super
More than 140 hours is spent, and is placed 1 month or so, the concentration gradient expendable Lock-out of meeting again, therefore conventional efficient is low, nothing
Method is reused.2nd, the naturally lysigenous concentration gradient of salt in harge granules (or sugar) and yardstick are uncontrollable, the quantitative survey of gradient
Measure difficulty very big.3rd, the stability of the concentration gradient of self-assembling formation is big and immovable by environment temperature, vibration effect.More than
Some all cause using salt in harge granules (or sugar) naturally lysigenous graded index can not quantitative study it is non-homogeneous
Light in Medium transmission characteristic.Simultaneously with nature due to thermograde formation mirage phenomenon physical principle have significance difference
It is different, therefore using the naturally lysigenous concentration gradient of salt in harge granules (or sugar), " mirage " phenomenon is simply simulated, and
It is not belonging to real physics demonstration.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of above-mentioned demenstration method, provide it is a kind of it is reasonable in design,
The more intuitive mirage phenomenon of simple in construction, demonstrating effect and bending of light transmission track experimental demonstration device.
Solving the technical scheme of above-mentioned technical problem use is：Tank is provided with base, base upper flume rear is set
It is equipped with to be provided with the right side of the laser on laser stent, base upper flume and is connected with the sensor in tank
Left part sealing is provided with first dividing plate perpendicular with tank front-rear side walls, right part sealing and set in the multichannel temperature logger connect, tank
Left side wall, the front and rear wall formation bosh of the second partition perpendicular with tank front and rear wall, the first dividing plate and tank are equipped with, the
Right side wall, the front and rear wall of two dividing plates and tank are contrasted tank, the front-rear side walls shape of the first dividing plate and second partition and tank
Into mirage tank, closed set has semiconductor-on-insulator cooling piece and lower semiconductor cooling piece on the vertical direction of the first dividing plate, on
The hot face of semiconductor chilling plate towards mirage tank, the huyashi-chuuka (cold chinese-style noodles) of lower semiconductor cooling piece towards mirage tank, in mirage tank away from
Sealing is provided with gradient plate on the front-rear side walls of tank at first 5~10cm of dividing plate, and upper end and the semiconductor-on-insulator of gradient plate freeze
The upper end of piece is in same level, the lower end of lower end and lower semiconductor cooling piece in same level, gradient plate and tank
Bottom plate is vertical, tank rear and mirage tank and contrast tank just to be respectively arranged on the base with two first and observe bodies and the
Two observation bodies.
The first observation body of the present invention and the second observation body structure are identical.
The tank of the present invention is cuboid transparent sink.
The laser beam of the laser output of the present invention passes through tank adjacent and parallel to the right flank of gradient plate.
The first dividing plate and second partition of the present invention is transparent plexiglass plate.
Because the present invention is using the semiconductor-on-insulator cooling piece for being embedded in the first dividing plate top and is embedded in first the lower partition
Lower semiconductor cooling piece and the gradient plate that is arranged on the right side of the first dividing plate that relative superiority or inferiority in temperature is formed in mirage tank is low
Large scale gradient temperature, i.e. large scale graded index, the yardstick of the invention that gradient temperature is set up in water is big, speed
It hurry up, cost is low, safe and reliable, can clearly demonstrate mirage phenomenon and principle.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is Fig. 1 right view.
Fig. 4 is the temperature gradient curve of vertical direction in water of the present invention.
In figure：1st, tank；2nd, the first dividing plate；3rd, semiconductor-on-insulator cooling piece；4th, lower semiconductor cooling piece；5th, gradient plate；6、
Second partition；7th, base；8th, multichannel temperature logger；9th, sensor；10th, laser；11st, the first observation body；12nd, the second observation body；
13rd, laser stent.
Embodiment
The present invention is described in further details with reference to the accompanying drawings and examples, but the invention is not restricted to these implementations
Example.
Embodiment 1
In Fig. 1,2,3, mirage phenomenon of the present invention transmits track experimental demonstration device with bending of light, in base 7
On be placed with tank 1, tank 1 of the invention is cuboid transparent sink, and the rear of 7 upper flume of base 1 is provided with installed in laser
Laser 10 on device support 13, the right side of 7 upper flume of base 1 is provided be connected with the sensor 9 being arranged in tank many
Channel Temperature Measuring instrument 8, passes through the temperature gradient curve of vertical direction in the Observable of multichannel temperature logger 8 water of the present invention, further, this hair
The laser beam that bright laser 10 is exported passes through tank 1 adjacent and parallel to the right flank of gradient plate 5, through the right side of tank 1
The bending track of laser beam in wall and the observation mirage tank of second partition 6 in large scale linear gradient temperature province.Tank 1
Interior left part is sealed and installed with first dividing plate 2 perpendicular with the front-rear side walls of tank 1, right part sealing and is provided with and the front and rear wall of tank 1
Perpendicular second partition 6, further, the first dividing plate 2 of the invention, second partition 6 are transparent plexiglass plate, first
Water is full of in left side wall, front and rear wall formation bosh of the dividing plate 2 with tank 1, bosh, for absorbing semiconductor chilling plate
The heat shed；Right side wall, the front and rear wall of second partition 6 and tank 1, which are contrasted in tank, contrast tank, is full of running water,
Uniform dielectric is provided, is compared for the non-uniform dielectric with mirage tank, the first dividing plate 2 and second partition 6 and tank 1
Front-rear side walls formation mirage tank, closed set has semiconductor-on-insulator cooling piece 3 and lower half to lead on the vertical direction of the first dividing plate 2
Body cooling piece 4, the hot face of semiconductor-on-insulator cooling piece 3 is towards mirage tank, and the huyashi-chuuka (cold chinese-style noodles) of lower semiconductor cooling piece 4 is towards mirage water
Sealing is provided with gradient plate 5, the upper end of gradient plate 5 on the front-rear side walls away from tank 1 at the first dividing plate 8cm in groove, mirage tank
With the upper end of semiconductor-on-insulator cooling piece 3 in same level, the lower end of lower end and lower semiconductor cooling piece 4 is in same level
Interior, gradient plate 5 is vertical with the bottom plate of tank 4, is large scale linear gradient temperature province between gradient plate 5 and second partition 5, is used for
Observation demonstration mirage phenomenon, tank rear and mirage tank and contrast tank just to be respectively arranged on the base with the first sight
The observation body 12 of body 11 and second is examined, further, the first observation body 11 of the invention is identical with the second observation structure of body 12,
Position and the size variation of the observation body 12 of body 11 and second are observed through mirage tank and contrast tank observation first simultaneously, you can
Seen with the position that will become apparent from the first observation body 11 relative with mirage tank apparently higher than second seen through contrast tank
The position of body 12 is examined, with reference to the bending direction of laser beam, mirage phenomenon is intuitively demonstrated, mirage formation is disclosed
Physical principle.
Embodiment 2
Seal and set on the front-rear side walls away from tank 1 at the first dividing plate 5cm in embodiment 1, in the mirage tank of the present embodiment
It is equipped with gradient plate 5, the upper end of gradient plate 5 is with the upper end of semiconductor-on-insulator cooling piece 3 in same level, lower end and lower semiconductor
The lower end of cooling piece 4 is in same level, and gradient plate 5 is vertical with the bottom plate of tank 4, the company of remaining each parts and parts
Connect relation identical with embodiment 1.
Embodiment 3
Seal and set on the front-rear side walls away from tank 1 at the first dividing plate 10cm in embodiment 1, in the mirage tank of the present embodiment
It is equipped with gradient plate 5, the upper end of gradient plate 5 is with the upper end of semiconductor-on-insulator cooling piece 3 in same level, lower end and lower semiconductor
The lower end of cooling piece 4 is in same level, and gradient plate 5 is vertical with the bottom plate of tank 4, the company of remaining each parts and parts
Connect relation identical with embodiment 1.
The operation principle of the present invention is as follows：
It is embedded in after the energization of the semiconductor-on-insulator cooling piece 3 on the top of the first dividing plate 2, the hot face of semiconductor-on-insulator cooling piece 2 heating clam
Close to the water in hot face in scape tank, hot water is migrated upwards.It is embedded in after the energization of the lower semiconductor cooling piece 4 of the bottom of the first dividing plate 2,
Close to the water of huyashi-chuuka (cold chinese-style noodles) in the huyashi-chuuka (cold chinese-style noodles) of lower semiconductor cooling piece 4 cooling mirage tank, cold water is migrated downward into, due to the resistance shelves of gradient plate 5
It can only be migrated all the way up with guide functions hot water, and cold water can only be migrated downward into always, when hot water crosses the upper of gradient plate 5
End, cold water just forms heat exchange by the lower end of gradient plate 5 in mirage tank, and relative superiority or inferiority in temperature is formed in mirage tank
Low large scale gradient temperature, the need for meeting demonstration mirage principle.In bosh, the first dividing plate is arranged on
The water of the huyashi-chuuka (cold chinese-style noodles) of semiconductor-on-insulator cooling piece 3 cooling on 2 tops is migrated downward into, and is arranged on the lower semiconductor refrigeration of the bottom of the first dividing plate 2
The water of the hot face heating of piece 4 is migrated upwards, and hot and cold water meets, and the water in bosh is maintained at relatively low temperature for a long time,
It ensure that the trouble free service of semiconductor chilling plate.The running water that normal temperature state is full of in tank is contrasted, it, which is acted on, is to provide uniformly
Medium, is compared for the non-uniform dielectric with mirage tank.Its method is while through contrast tank and thoroughly with right and left eyes
Cross mirage observation first and observe the observation body 12 of body 11 and second, the position of body 12, size are observed through contrast tank is seen second
It is constant, and the first observation body 11 position for seeing through mirage tank, size are changed, the sea market with this ocular demonstration
Clam building phenomenon, discloses the principle of mirage formation.
Claims (5)
1. a kind of mirage phenomenon transmits track experimental demonstration device with bending of light, tank, base are provided with base
Upper flume rear is provided with the right side of the laser on laser stent, base upper flume and is provided with being arranged in tank
The multichannel temperature logger that is connected of sensor, it is characterised in that：Left part sealing is provided with tank mutually hangs down with tank front-rear side walls
The first dividing plate directly, right part sealing are provided with the left side of the second partition perpendicular with tank front and rear wall, the first dividing plate and tank
Wall, front and rear wall formation bosh, right side wall, the front and rear wall of second partition and tank are contrasted tank, the first dividing plate and the
The front-rear side walls formation mirage tank of two dividing plates and tank, closed set has semiconductor-on-insulator system on the vertical direction of the first dividing plate
Cold and lower semiconductor cooling piece, the hot face of semiconductor-on-insulator cooling piece is towards mirage tank, the huyashi-chuuka (cold chinese-style noodles) face of lower semiconductor cooling piece
To mirage tank, sealing is provided with gradient plate, gradient on the front-rear side walls away from tank at first 5~10cm of dividing plate in mirage tank
The upper end of the upper end of plate and semiconductor-on-insulator cooling piece is in same level, the lower end of lower end and lower semiconductor cooling piece is same
In horizontal plane, gradient plate is vertical with tank bottom plate, tank rear and mirage tank and contrast tank just to base on set respectively
It is equipped with two first observation bodies and the second observation body.
2. mirage phenomenon according to claim 1 transmits track experimental demonstration device with bending of light, its feature exists
In：Described the first observation body and the second observation body structure is identical.
3. mirage phenomenon according to claim 1 transmits track experimental demonstration device with bending of light, its feature exists
In：Described tank is cuboid transparent sink.
4. mirage phenomenon according to claim 1 transmits track experimental demonstration device with bending of light, its feature exists
In：The laser beam of described laser output passes through tank adjacent and parallel to the right flank of gradient plate.
5. mirage phenomenon according to claim 1 transmits track experimental demonstration device with bending of light, its feature exists
In：The first described dividing plate and second partition are transparent plexiglass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542423.XA CN107256669B (en) | 2017-07-05 | 2017-07-05 | Track experimental demonstration device is transmitted in mirage phenomenon and bending of light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542423.XA CN107256669B (en) | 2017-07-05 | 2017-07-05 | Track experimental demonstration device is transmitted in mirage phenomenon and bending of light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107256669A true CN107256669A (en) | 2017-10-17 |
| CN107256669B CN107256669B (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710542423.XA Active CN107256669B (en) | 2017-07-05 | 2017-07-05 | Track experimental demonstration device is transmitted in mirage phenomenon and bending of light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178119A (en) * | 2021-05-11 | 2021-07-27 | 南开大学 | Non-uniform refractive index field construction device and mirage demonstration device |
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| CN104933932A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Demonstration device for bending direction of light ray in positive gradient temperature field and experimental method |
| CN104933931A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Experimental device for heat flow beam splitting effect in liquid and experimental method |
| CN104992600A (en) * | 2015-06-25 | 2015-10-21 | 陕西师范大学 | Experiment apparatus for establishing gradient temperature field in water |
| CN105044032A (en) * | 2015-06-25 | 2015-11-11 | 陕西师范大学 | Experimental device and experimental method for demonstrating relationship between liquid refractive index and temperature |
| CN105067536A (en) * | 2015-07-07 | 2015-11-18 | 中山大学 | High-accuracy substance solubility measurement device based on laser refraction |
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2017
- 2017-07-05 CN CN201710542423.XA patent/CN107256669B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104933932A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Demonstration device for bending direction of light ray in positive gradient temperature field and experimental method |
| CN104933931A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Experimental device for heat flow beam splitting effect in liquid and experimental method |
| CN104992600A (en) * | 2015-06-25 | 2015-10-21 | 陕西师范大学 | Experiment apparatus for establishing gradient temperature field in water |
| CN105044032A (en) * | 2015-06-25 | 2015-11-11 | 陕西师范大学 | Experimental device and experimental method for demonstrating relationship between liquid refractive index and temperature |
| CN105067536A (en) * | 2015-07-07 | 2015-11-18 | 中山大学 | High-accuracy substance solubility measurement device based on laser refraction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178119A (en) * | 2021-05-11 | 2021-07-27 | 南开大学 | Non-uniform refractive index field construction device and mirage demonstration device |
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| CN107256669B (en) | 2019-06-28 |
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