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Experimental device and experimental method of beam splitting effect of heat flux in liquid

An experimental device and streamer technology, applied in educational appliances, instruments, teaching models, etc., can solve problems such as no teaching experimental demonstration instruments, etc., and achieve the effects of simple structure, fast speed, and stable gradient temperature field.

Active Publication Date: 2017-07-11
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there is no relevant teaching experiment demonstration instrument

Method used

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  • Experimental device and experimental method of beam splitting effect of heat flux in liquid
  • Experimental device and experimental method of beam splitting effect of heat flux in liquid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] exist figure 1 Among them, the experimental device for beam-splitting effect of thermal flux in liquid in this embodiment is composed of a semiconductor laser 1, a transparent water tank 2, a semiconductor cooling chip 3, a semiconductor cooling chip bracket 4, a base 5, and a laser bracket 6.

[0016] A transparent water tank 2 is placed on the base 5. The transparent water tank 2 is made of plexiglass or quartz glass. The geometric shape of the transparent water tank 2 is a cuboid, and the transparent water tank 2 is filled with water. The bottom in the transparent water tank 2 is placed with a semiconductor refrigeration sheet support 4, and the semiconductor refrigeration sheet support 4 is bonded with a semiconductor refrigeration sheet 3. The geometric shape of the semiconductor refrigeration sheet 3 is a cuboid, and the front side of the semiconductor refrigeration sheet 3 is a thermal Surface, by switching the power supply connection polarity of the semiconducto...

Embodiment 2

[0022] In the present embodiment, the bottom of the transparent water tank 2 is placed with a semiconductor refrigeration sheet support 4, and the semiconductor refrigeration sheet support 4 is bonded with a semiconductor refrigeration sheet 3. The geometric shape of the semiconductor refrigeration sheet 3 is a cuboid, and the semiconductor refrigeration sheet 3 The front side of the semiconductor refrigeration sheet is a hot surface, and the hot surface of the semiconductor refrigeration sheet 3 is vertical to the horizontal plane. The hot surface of the semiconductor refrigeration sheet 3 is parallel to the length front side wall of the transparent water tank 2. The distance from the upper surface of the cooling sheet 3 to the water surface is 50 mm. Other components and the coupling relationship of the components are the same as in Embodiment 1.

[0023] The experimental method of using the experimental device for thermal flux beam-splitting effect in liquid of this embodim...

Embodiment 3

[0025] In the above embodiments 1 and 2, the experimental device for the beam-splitting effect of heat flux in liquid is the same as that of the corresponding embodiments.

[0026] In step 1 of the experimental method using the heat flow light beam splitting effect experimental device in liquid, the direction of the outgoing light of the semiconductor laser 1 is adjusted so that the laser beam emitted by the semiconductor laser 1 passes directly above the front side of the semiconductor cooling plate 3 and is parallel to the front side, The distance from the upper surface h of the semiconductor refrigeration sheet 3 is 5mm and the water passes along the horizontal direction. Step 2 is the same as that of Embodiment 1, the laser emitted by the laser is divided into two beams by one laser beam above the semiconductor cooling chip 3 .

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Abstract

The invention discloses an experimental device for a heat flow beam splitting effect in a liquid. The experimental device comprises a base, wherein a transparent water tank filled with water is arranged on the base, a semiconductor refrigerating chip bracket provided with a semiconductor refrigerating chip is arranged in the transparent water tank, the front side surface of the semiconductor refrigerating chip is hot surface or a cold surface and is vertical to the horizontal plane, the semiconductor refrigerating chip bracket and the semiconductor refrigerating chip are immersed in water, the distance from the upper surface of the semiconductor refrigerating chip to the water surface is at least 30 mm, and the semiconductor refrigerating chip bracket provided with a semiconductor laser device is arranged by the left side of the transparent water tank on the base. An experimental method provided by the invention realizes direct demonstration of the heat flow beam splitting effect by utilizing different bending directions of different light rays from a laser beam in gradient temperature fields with opposite directions. The experimental device has the advantages of being simple in structure, fast in gradient temperature field establishing speed, stable in gradient temperature field, obvious and direct in demonstration effect, and capable of serving as the optical demonstration and experimental instrument.

Description

technical field [0001] The invention belongs to the technical field of optical experiment teaching instruments, and in particular relates to an experimental device for the spectral effect of heat flow in liquid. Background technique [0002] The formation of the concept of straight-line propagation of light begins with people's intuitive experience within a limited range and the "axiom" concept of straight-line propagation of light established in elementary and middle school geometric optics. In fact, there are conditions for light to travel in a straight line. Light can only travel in a straight line in a homogeneous medium, and in a non-uniform medium, light is bent and transmitted. The law of light bending and transmission in inhomogeneous media has long been concluded in atmospheric optics, that is, light is deflected to areas with low spatial temperature, more precisely, to areas with high refractive index. The objects or scopes studied by atmospheric optics are often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/22
CPCG09B23/22
Inventor 张宗权苗润才任俊鹏黄育红杨宗立鲁佰佐刘志存
Owner SHAANXI NORMAL UNIV
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