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A rapid nondestructive testing method for the preservation state of water-saturated wooden cultural relics

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, damage to sampling damage, and easy to be affected by the deposition of inorganic substances/organic substances and other dirt and other issues to achieve the effect of short test cycle

Active Publication Date: 2022-08-02
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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  • A rapid nondestructive testing method for the preservation state of water-saturated wooden cultural relics
  • A rapid nondestructive testing method for the preservation state of water-saturated wooden cultural relics
  • A rapid nondestructive testing method for the preservation state of water-saturated wooden cultural relics

Examples

Experimental program
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Effect test

Embodiment 1

[0051] like figure 1 As shown in the figure, a rapid non-destructive testing method for the preservation state of water-saturated wooden cultural relics includes the following steps:

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

[0053] The test step is to use a spectrometer to test the water-saturated wooden cultural relics;

[0054] The step of acquiring data is to acquire the spectral data tested by the spectrometer, and process the spectral data;

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

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

[0057] In this embodiment, after the test step and the data acquisition step, the steps of e...

Embodiment 2

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

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

[0061] In this embodiment, either a cleaning knife or an air blowing device can be used to remove the stains on the surface of the water-saturated wooden cultural relics, or a cleaning knife and an air blowing device can be used to remove the surface stains on the water-saturated wooden cultural relics at the same time; It is carefully and lightly operated by humans, so it can avoid the damage to the surface of water-saturated wooden cultural relics caused by the automatic operation of mechanical knives.

Embodiment 3

[0063] In the test step, the test conditions are: the spectral scanning range is 350nm to 2550nm, the resolution is 0.5nm to 15nm, the measurement time is 1 second to 30 seconds, 8 groups to 40 groups of spectral data are obtained in one measurement, and each scan is repeated. The spectra are merged to obtain a new averaged spectrum file. Data is collected from 1 to 10 times for each test site, and the distance between adjacent test sites is 20mm to 300mm.

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

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

[0066] Since the degree of decay and deterioration of different areas on each water-saturated wooden cultural relic is different, in order to ensure the accuracy of detection, the distance between adja...

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Abstract

The invention relates to the technical field of a method for determining the preservation state of water-saturated wooden cultural relics, and provides a rapid non-destructive testing method for the preservation state of water-saturated wooden cultural relics. The water-saturated wooden cultural relics are tested; the data acquisition step is to obtain the spectral data after the spectrometer test, and the spectral data is processed; the establishment of a calibration model step is used to establish a calibration model for the preservation state of the water-saturated wooden cultural relics; the preservation state step is determined, It is used to test the spectral data and clustering behavior of water-saturated wooden artifacts through the aforementioned steps, and determine their preservation status. With this technical solution, after the testing step and the data acquisition step, the steps of establishing a calibration model and determining the preservation state can be used to accurately determine the preservation state of the water-saturated wooden cultural relics, and it has the advantages of no destructive sampling damage and fast test speed. The advantages.

Description

technical field [0001] The invention relates to the technical field of detection methods for the preservation state of water-saturated wooden cultural relics, in particular to a rapid nondestructive detection method for the preservation state of water-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-bearing wooden cultural relics and water-bearing 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. They are important cultural relics in my country. Due to long-term burial in a complex water environment, water-saturated wooden cultural relics exhibit the characteristics of uneven degradation, diverse diseases, and fragile wood properties. The differences in structure and properties be...

Claims

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Application Information

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Patent Type & Authority Patents(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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