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Non-uniform medium light transmission characteristic experiment device and experiment method

A technology of inhomogeneous media and experimental equipment, applied in the direction of educational appliances, instruments, teaching models, etc., can solve the problems that the concentration gradient stability is greatly affected by ambient temperature and vibration, can not be moved, and the experiment efficiency is low, so as to solve the problem of gradient temperature Field distribution, effect of improving accuracy

Inactive Publication Date: 2017-12-15
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are the following problems: (1) It takes a long time for the large-grained salt (or sugar cube) to dissolve naturally to form a concentration gradient, generally more than 140 hours, and the concentration gradient will not be restored after being left for about one month. Natural disappearance, so the experiment efficiency is low and cannot be reused
(2) The concentration gradient and scale formed by the natural dissolution of large-grained salt (or sugar cubes) are uncontrollable, and the quantitative measurement of the gradient is very difficult
(3) The stability of the naturally formed concentration gradient is greatly affected by ambient temperature and vibration, and cannot move
However, the gradient temperature field established by this structure in the water has a very small linear gradient range in the vertical direction, generally only 3-4cm, and the light will soon enter the non-linear gradient temperature region (non-linear gradient) during the horizontal transmission process in the transparent water tank. Refractive index region), making it very difficult to quantitatively study the transmission characteristics of light in the gradient refractive index medium in the transparent tank

Method used

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  • Non-uniform medium light transmission characteristic experiment device and experiment method
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  • Non-uniform medium light transmission characteristic experiment device and experiment method

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Experimental program
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Embodiment 1

[0033] exist figure 1 , 2 Among them, the experimental device for light transmission characteristics in a heterogeneous medium in this embodiment consists of a semiconductor cooling chip support 1, a semiconductor cooling chip 2, a gradient plate support 3, a gradient plate 4, a transparent water tank 5, a coordinate plate 6, and a multi-channel temperature tester 7 , a track measuring device 8, a base 9, a laser bracket 10, and a semiconductor laser 11 are connected to form.

[0034] A transparent water tank 5 is placed on the base 9, and the transparent water tank 5 is made of plexiglass. The geometric shape of the transparent water tank 5 is a cuboid, and the transparent water tank 5 is filled with water. On the left side wall in the transparent water tank 5, a semi-conductor cooling chip support 1 is fixedly installed with glue bonding, and a semiconductor cooling chip 2 is fixedly installed on the semiconductor cooling chip support 1, and the semiconductor cooling chip s...

Embodiment 2

[0043] In this embodiment, a gradient plate support 3 is bonded with glue on the front and rear side walls in the transparent water tank 5. The geometric shape of the gradient plate support 3 is Π-shaped, and the two gradient plate supports 3 are vertically vertical. The center line is located in the same plane and is perpendicular to the bottom surface of the transparent water tank 5. Three pin shaft holes are processed at the bottom of the gradient plate support 3. The center lines of the three pin shaft holes are located on the same straight line and are aligned with the transparent water tank 5. The bottom surface of the vertical plate is vertical, and the gradient plate 4 is fixedly installed on the gradient plate support 3 by inserting the pin shaft into the pin shaft hole. The three pin shaft holes can be used to install three kinds of gradient plate 4 with different heights, and the gradient plate 4 has three types. Different heights of poor heat conductor non-metallic ...

Embodiment 3

[0050] In this embodiment, a gradient plate support 3 is bonded with glue on the front and rear side walls in the transparent water tank 5. The geometric shape of the gradient plate support 3 is Π-shaped, and the two gradient plate supports 3 are vertically vertical. The center line is located in the same plane and is perpendicular to the bottom surface of the transparent water tank 5. Three pin shaft holes are processed at the bottom of the gradient plate support 3. The center lines of the three pin shaft holes are located on the same straight line and are aligned with the transparent water tank 5. The bottom surface of the vertical plate is vertical, and the gradient plate 4 is fixedly installed on the gradient plate support 3 by inserting the pin shaft into the pin shaft hole. The three pin shaft holes can be used to install three kinds of gradient plate 4 with different heights, and the gradient plate 4 has three types. Different heights of non-metallic versions of poor hea...

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Abstract

A non-uniform medium light transmission characteristic experiment device comprises multi-path temperature testers arranged on a pedestal and a transparent water tank filled with water; a semiconductor refrigeration sheet support is arranged on the left side wall of the transparent water tank and provided with semiconductor refrigeration sheets; the semiconductor refrigeration sheet support and the semiconductor refrigeration sheets are immerged in the water; a laser support is arranged in front of the transparent water tank on the pedestal and provided with a semiconductor laser; a gradient plate support is respectively arranged on the front wall and rear wall in the transparent water tank; a gradient plate is arranged on the gradient plate support; a coordinate plate is arranged on the right side wall of the transparent water tank; the experiment device also comprises a track measurer arranged on the pedestal; in an experiment, the track measurer on the coordinate plate can move from the incident position of a laser beam on the transparent water tank to the emitting position of the laser beam on the transparent water tank along the laser beam track; a track measurer observation tube can read the vertical coordinate of the observation point laser beam on the coordinate plate at a 1cm interval on the transverse coordinate on the coordinate plate, thus obtaining the transmission track of the laser beam in the temperature gradient field.

Description

technical field [0001] The invention belongs to the technical field of optical experimental instruments, and in particular relates to an experimental device for light transmission characteristics in a heterogeneous medium. Background technique [0002] The transmission characteristics of light in inhomogeneous media not only reveal the physical nature of natural phenomena such as "mirages", but are also used in the research of long optical path transmission fields such as atmospheric optics, laser communication, optical fiber communication, and laser remote sensing, as well as gradient refractive index optical components. It has been widely used in modern technology such as design and manufacture. However, people always have a certain degree of mystery about the phenomenon of bending transmission of light in inhomogeneous media. On the one hand, this is due to the "deep root" of the concept of straight-line propagation of light formed by people since childhood, and on the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 张宗权徐铭田玉龙卫芬芬刘志存黄育红任俊鹏姚志耿玉
Owner SHAANXI NORMAL UNIV