Rapid nondestructive testing method for preservation state of water-saturated wooden cultural relic

A non-destructive testing, wood-based technology, applied in the direction of measuring devices, test sample preparation, optical testing flaws/defects, etc., can solve the problem of long test cycle, easy to be affected by the deposition of inorganic matter/organic matter and other dirt, and damage to sampling damage and other issues to achieve the effect of short test cycle

Active Publication Date: 2021-04-30
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aforementioned methods for measuring the state of preservation of saturated wooden cultural relics all suffer from damage to sampling, long test periods, and are easily affected by the deposition of inorganic / organic matter and other dirt.

Method used

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  • Rapid nondestructive testing method for preservation state of water-saturated wooden cultural relic
  • Rapid nondestructive testing method for preservation state of water-saturated wooden cultural relic
  • Rapid nondestructive testing method for preservation state of water-saturated wooden cultural relic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, a rapid non-destructive testing method for the state of preservation of saturated wooden cultural relics, including the following steps:

[0052] The cleaning step is to clean the surface of the saturated wooden cultural relic;

[0053] Test steps, using a spectrometer to test the saturated wooden cultural relics;

[0054] The step of obtaining data is to obtain the spectral data after the spectrometer test, and process the spectral data;

[0055] The step of establishing a correction model is used to establish a correction model for the state of preservation of saturated wooden cultural relics;

[0056] The step of determining the preservation state is used to test the spectral data and clustering behavior of the saturated wooden cultural relics through the aforementioned steps, and determine its preservation state.

[0057] In this embodiment, after the testing steps and the data acquisition steps, the steps of establishing the calibratio...

Embodiment 2

[0059] In the cleaning step: remove stains on the surface of the saturated wooden cultural relic, and then use deionized water to clean the surface of the saturated wooden cultural relic;

[0060] When removing stains on the surface of saturated wooden cultural relics, use any one of cleaning knives and air blowing equipment.

[0061] In this embodiment, any one of the cleaning knife and air blowing equipment can be used to remove the stains on the surface of the saturated wooden cultural relics, or the cleaning knife and the air blowing equipment can be used to remove the surface stains of the saturated wooden cultural relics; It is carefully and slightly operated by humans, so it can avoid the damage to the surface of saturated wooden cultural relics by the automatic operation of mechanical knives.

Embodiment 3

[0063] In the test procedure, the test conditions are: the spectral scanning range is 350nm to 2550nm, the resolution is 0.5nm to 15nm, and the measurement time is 1 second to 30 seconds. One measurement can obtain 8 to 40 sets of spectral data, and each time the scanning is repeated The spectra are merged to obtain a new averaged spectral file. Each test site collects data from 1 to 10 times, and the distance between adjacent test sites is 20mm to 300mm.

[0064] In this embodiment, multiple times of repeated scanning spectral data of each saturated wooden cultural relic to be measured are combined to obtain a new averaged spectral data file, so as to achieve the purpose of reducing errors.

[0065] The spectral data is the data for data preprocessing in the subsequent steps.

[0066] Due to the difference in the degree of decay and deterioration in different areas of each water-saturated wooden cultural relic, in order to ensure the accuracy of the test, the distance between...

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Abstract

The invention relates to the technical field of methods for determining the preservation state of a water-saturated wooden cultural relic, and provides a rapid nondestructive testing method for the preservation state of the water-saturated wooden cultural relic, which comprises the following steps: a cleaning step: cleaning the surface of the water-saturated wooden cultural relic; a testing step: testing the waterlogged wooden cultural relics by using a spectrograph; a data acquisition step: acquiring spectral data after the test of the spectrograph, and processing the spectral data; a correction model establishing step: establishing a correction model of the preservation state of the waterlogged wooden cultural relic; and a storage state determination step: testing spectral data and clustering behaviors of the water-saturated wooden cultural relics through the previous steps, and determining the storage state of the water-saturated wooden cultural relics. By adopting the technical scheme, after the test step and the data acquisition step, the step of establishing the correction model and the step of measuring the preservation state are adopted, so that the preservation state of the water-saturated wooden cultural relic can be accurately measured, and the method has the advantages of no destructive sampling damage and high test speed.

Description

technical field [0001] The invention relates to the technical field of detection methods for the preservation state of saturated wooden cultural relics, in particular to a rapid non-destructive detection method for the preservation state of saturated wooden cultural relics. Background technique [0002] Water-saturated wooden cultural relics are an important part of wooden cultural relics in human cultural heritage, including water-containing wooden cultural relics and water-containing wooden cultural relics deposited by dirt. Water-saturated wooden cultural relics are mainly ancient wooden boats, and also include production and living utensils, wooden buildings and wooden components, etc., which are important cultural relics resources in my country. Due to long-term buried in complex water environment, water-saturated wooden cultural relics show characteristics such as uneven degradation, various diseases, and fragile materials. The differences in structure and properties ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34G01N21/3563G01N21/359G01N21/95
CPCG01N1/34G01N21/3563G01N21/359G01N21/95
Inventor 殷亚方陈家宝郭娟焦立超何拓李仁张永刚
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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