Refractive index measuring instrument

A technology of refractive index and measuring instrument, which is applied in the direction of measuring device, phase influence characteristic measurement, instrument, etc., to achieve the effect of simplifying operation, improving measuring efficiency and reducing the workload of pin insertion

Pending Publication Date: 2017-05-31
裴钊
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that it is difficult to accurately draw rays in the prior art, the present invention provides a refractometer. When using the refractometer to measure the refractiv...

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0066] Aiming at the problem of the pin insertion method and the difficulty of drawing light accurately by using the magnetic pin base, the present invention has improved technically. When using the refractometer of the present invention to measure the refractive index, there is no need to draw light, and the circular protractor on the dial reads Angles of incidence and refraction, thereby avoiding measurement errors introduced by drawing rays.

[0067] Such as figure 1 The schematic diagram of glass brick refraction is shown, AO is the direction of incident light, OO' is the direction of refracted light, and the formula for calculating the refractive index of glass is: Among them, n is the refractive index, i is the in...

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Abstract

The invention discloses a refractive index measuring instrument which comprises a dial, an activity pointer, a glass tile and a marker, wherein the dial is placed above the glass tile, and is provided with at least two slots which are respectively positioned on an incident light side and a refracted light side; the inner edge of the slot positioned on the refracted light side is tangent to the glass tile; the activity pointer is rotationally connected with the dial, and is provided with a hairline; an incident angle is read on the dial according to an incident light position; the direction of refracted light is calibrated by virtue of the marker, the activity pointer and the slots; a refraction angle is read on the dial through the hairline on the activity pointer, so as to calculate the refractive index of glass. When the refractive index measuring instrument provided by the invention is in use, light drawing is not needed, and the incident angle and the refraction angle are read through scales on the dial, thereby avoiding measurement errors introduced by the light drawing, greatly reducing the workload and improving the measurement efficiency.

Description

technical field [0001] The invention relates to an optical experiment measuring instrument, in particular to a refractive index measuring instrument used in experiments and teaching. Background technique [0002] Measuring the refractive index of glass is an application technology with wide requirements in production and life. Using the principle of light refraction, first determine the incident light on the glass interface and the refracted light inside the glass, and then calculate the refractive index of the glass. Existing instruments for measuring the refractive index of glass include light velocity measuring instrument, Michelson interferometer and laser autocollimator. These three instruments are all measured by high-energy light sources. On the one hand, the cost is high, and on the other hand, there are certain requirements for the professionalism of the operator. Therefore, they are widely used in fields such as higher education, scientific research institutes, and...

Claims

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Application Information

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IPC IPC(8): G01N21/41
CPCG01N21/4133
Inventor 裴洋裴钊高宇
Owner 裴钊
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