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Experimental light control device for determining Planck constant

A light device and experimental technology, applied in the direction of educational appliances, instruments, teaching models, etc., can solve the problems of loss, easy drop of optical filters and apertures, troublesome replacement, etc., and achieve the effects of improving efficiency, simple structure, and convenient operation

Inactive Publication Date: 2013-02-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In experiments, filters of different wavelengths and apertures of different apertures should be replaced frequently. Due to the large number of filters and apertures, it is troublesome to replace them. In student experiments, filters and apertures are often easily dropped or lost.

Method used

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  • Experimental light control device for determining Planck constant

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Experimental program
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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention comprises a photoelectric cell dark box 1, a light-shielding sleeve 2 and a light filter cover 3, and a light inlet tube 11 is connected to the photoelectric tube dark box 1, and the light inlet tube 11 is circular, and the front end face 12 of the light inlet tube 11 There is a light inlet 13 close to the circumference on the top, and the light inlet 13 is circular; the light-shielding sleeve 2 and the filter cover 3 are circular, and a group of different diameters are distributed along the circumference on the sleeve end surface 21 of the light-shielding sleeve 2. Circular diaphragm 22 , a group of circular optical filters 32 with the same diameter and different wavelengths are distributed along the circumference on the cover end surface 31 of filter cover 3 .

[0012] The distance from the center of the light inlet hole 13 to the center of the light inlet tube front end face 12 is equal to the distance from the center ...

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PUM

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Abstract

The invention discloses an experimental light control device for determining Planck constant. The experimental light control device comprises a photoelectric tube dark box, a light-shading sleeve and a light-filtering sleeve cover, wherein a circular light inlet tube is connected to the photoelectric tube dark box, a circular light inlet hole is arranged near the circumference on the front end surface of the light inlet tube, the light-shading sleeve and the light-filtering sleeve cover are circular, a group of circular diaphragms with different diameters are distributed along the circumference on the sleeve end surface of the light-shading sleeve, and a group of circular light filters with the same diameter and different wavelengths are distributed along the circumference on the sleeve cover end surface of the light-filtering sleeve cover. The experimental light control device disclosed by the invention can be used for respectively combining the diaphragms with the different calibers with the light filters with the different wavelengths, further has the advantages of simple structure and convenience in operation, and is conductive to improving the experimental efficiency.

Description

technical field [0001] The invention relates to a physical experiment device, in particular to an experimental light control device for measuring Planck's constant. Background technique [0002] The experiment of determining Planck's constant is one of the basic physics experiments in universities. When carrying out this experiment, a mercury lamp is generally used as a light source, monochromatic light is obtained through a filter, and then the light intensity incident on the photoelectric tube is controlled through an aperture. In experiments, filters with different wavelengths and apertures with different apertures should be replaced frequently. Due to the large number of filters and apertures, it is troublesome to replace them. In student experiments, filters and apertures are often easy to drop or lose. Contents of the invention [0003] The object of the present invention is to provide a light control device for the measurement experiment of Planck's constant, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/22
Inventor 曹亦轩陈健朱纯
Owner JIANGNAN UNIV
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