A Method for Spectral Measurement and Traceability of Core Spectrum Scanner

A spectrum measurement and scanner technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of data drift, pollution, reduction of comparability, etc., and achieve the effect of eliminating drift error.

Inactive Publication Date: 2018-10-09
NANJING CENT CHINA GEOLOGICAL SURVEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the long-term exposure of the reference plate to the external environment, the surface of the reference plate will be polluted by dust or oxidized over time, so the spectrum of the reference plate will change slowly, which will affect the measurement of spectral reflectance As a result, especially during high-volume, long-term spectral reflectance measurements, measurement results can vary over time and data can drift, significantly reducing comparability

Method used

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  • A Method for Spectral Measurement and Traceability of Core Spectrum Scanner
  • A Method for Spectral Measurement and Traceability of Core Spectrum Scanner

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Embodiment 1

[0028]The rock core spectrum scanner spectral measurement traceability method of the present embodiment, the device of this method comprises rock core tray 5 and the rock core disk 6 that is arranged on the rock core tray 5, and rock core disk 6 is used for placing the rock core sample to be measured, and on the rock core disk 6 One side is provided with a reference plate mounting block, and the reference plate mounting block is formed with a first reference plate mounting hole for placing a standard reference plate 3 and a second reference plate mounting hole for placing an ordinary reference plate 4 In addition, the top of the core disk 6 is equipped with a core spectrum scanner 2 for measuring each core sample, common reference plate 4 and standard reference plate spectrum 3, and the core spectrum scanner 2 is provided with an alignment core disk 6 1. The probe 1 of the standard reference plate 3 and the common reference plate 4, and the rock core spectrum scanner 2 are conn...

Embodiment 2

[0038] The difference between this embodiment and the first embodiment is that the core sample to be scanned is the core of Zijinshan, Fujian, and the common reference plate has been exposed to the environment for more than 3 years, and has been polluted to a certain extent, the measured data.

Embodiment 3

[0040] The difference between this embodiment and the first embodiment is that the core sample to be scanned is the core of the Wulonggou gold mine, and the common reference plate is exposed to the environment for more than 1 year, and the measured data.

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Abstract

The invention relates to a method for tracing the source of a rock core spectrum scanner. The steps are as follows: after using the rock core spectrum scanner to measure the spectral value of a standard reference plate, the dark current value of the rock core spectrum scanner is obtained, and the rock core spectrum scanner is used to measure the rock core sample. The spectral values ​​of the core samples were corrected using a standard reference plate for the spectral reflectance of the core samples. The invention has the advantage of adopting the traceability method, using the reference plate spectral value of the instrument as the intermediate transition spectrum, so that the data measured by the spectrometer are all based on the same standard reference plate, eliminating the drift caused by environmental factors during data measurement error.

Description

technical field [0001] The invention belongs to the technical field of geological detection, and relates to a spectral measurement traceability method of a rock core spectral scanner. Background technique [0002] According to the applicant's understanding, rock core is a valuable non-renewable resource in petroleum geological exploration and development research work, and it is also one of the most intuitive and critical physical data. Most of the petroleum geological analysis data and geophysical exploration parameters come from rock cores. Observation and description of cores play an irreplaceable role in determining lithology, inferring depositional environment, and comprehensive research on source-reservoir-caprock assemblages. However, after the core comes out of the cylinder, its original appearance and geological research marks are easily damaged, which has a great impact on the follow-up research work, thereby limiting the application range of the core and reducing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/27
Inventor 修连存陈春霞高扬
Owner NANJING CENT CHINA GEOLOGICAL SURVEY
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