Method and device for measuring refractive index of soil by V prism

A refractive index and prism technology, applied in the field of refractive index measurement, can solve the problems of low measurement accuracy of soil refractive index and limited measurement range, etc.

Inactive Publication Date: 2017-06-13
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +2
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Problems solved by technology

[0005] The invention provides a method and device for measuring the refractive index of soil with a V prism to s

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  • Method and device for measuring refractive index of soil by V prism
  • Method and device for measuring refractive index of soil by V prism
  • Method and device for measuring refractive index of soil by V prism

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Embodiment Construction

[0027] see figure 1 , is a flowchart of a method for measuring the refractive index of soil with a V prism provided in an embodiment of the present invention.

[0028] The method for measuring the refractive index of soil with a V prism provided by this application includes:

[0029] S100: placing the soil sample to be tested at the V-shaped gap of the V prism, and filling a layer of immersion liquid between the soil sample to be tested and the V prism.

[0030] Specifically, the V prism is a rectangular prism with a "V"-shaped notch, made of two identical materials with a refractive index of n 0 The rectangular prism is glued together, the opening angle of the V-shaped notch is 90°, and the angle of the two sharp edges is 45°. Grind the soil sample to be tested to form two planes of 90°, and place it in the V-shaped notch. Due to the error of the sample angle processing, the gap between the two planes of the soil sample to be tested and the two planes of the V-shaped notch ...

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Abstract

The application discloses a method and device for measuring the refractive index of soil by a V prism. The method comprises the following steps that: a soil sample to be measured is placed at a V-shaped gap of the V-shaped prism, and a layer of immersion liquid is filled between the soil sample to be measured and the V prism; a wireless electromagnetic-wave transmitter transmits electromagnetic wave beams vertical to an incident plane of the V prism, the electromagnetic wave beams are refracted when passing through the V prism and the soil sample to be measured, and the refracted electromagnetic wave beams are emerged through an an emergent plane of the V prism; a CCD (Charge Coupled Device) sensor is moved to respectively record position coordinates of the emerged electromagnetic wave beams sensed by the CCD sensor; and the position coordinates are substituted into a formula and the refractive index of the sample is obtained by calculation. The method and device disclosed by the application have the advantages that the traditional V prism method is improved, and the traditional glass prism is replaced into transparent ceramic, so that the measurement range of the refractive index is improved; simultaneously, due to adoption of the wireless electromagnetic-wave transmitter and the CCD sensor, the measurement accuracy is improved; and the measurement principle is simple and the benefit for rapidly obtaining a measurement result is achieved.

Description

technical field [0001] The invention relates to the technical field of refractive index measurement, in particular to a method and a device for measuring soil refractive index with a V prism. Background technique [0002] Refractive index is one of the important optical parameters of substances. With the help of refractive index, the optical properties, purity, concentration and dispersion of substances can be understood. Other parameters (such as thermo-optic coefficient) are also closely related to refractive index. Soil is one of the main conditions for human survival, which includes soil minerals, organic matter, microorganisms, water and air, etc. At the same time, under different external environments, the difference in soil composition leads to a large difference in soil refractive index, so there are Refractive index measurements are necessary for specific soil samples. [0003] At present, the methods for measuring the refractive index of solids mainly include the ...

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Application Information

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IPC IPC(8): G01N21/41
CPCG01N21/41
Inventor 项恩新郭平林勇王科吴灿辉李伟余开思
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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