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Method for rapidly measuring water content in RDX explosive

A technology of measurement method and detection method, applied in measurement devices, analysis materials, material analysis by optical means, etc., can solve the problems of labor consumption, cumbersome operation of detection methods, time-consuming, etc. Solve the tedious effect

Inactive Publication Date: 2017-05-31
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a rapid detection method for the moisture content of RDX explosives, which is used for the rapid, non-destructive and accurate detection of the moisture content in RDX explosives, and solves the problems of cumbersome operation, time-consuming and labor-consuming of the existing detection methods

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  • Method for rapidly measuring water content in RDX explosive
  • Method for rapidly measuring water content in RDX explosive
  • Method for rapidly measuring water content in RDX explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1 Sample preparation

[0041] A total of 144 RDX samples with different moisture contents were prepared and used to build the entire data set. Each sample was placed in a uniform plastic packaging bag, and the whole experiment was carried out at room temperature 20±2°C.

[0042] 2 Determination of moisture content by chemical method

[0043] According to the national military standard "GJB772A-1997 Explosive Test Method", the chemical method-drying method is used to determine the moisture of the sample; the measured value is the content value (g) in 10 grams of the sample. The measurement results are shown in Table 3.

[0044] After sorting according to the moisture measurement value, 2 / 3 of the total samples (a total of 89 samples) were evenly selected as the calibration set, and the remaining 1 / 3 was used as the prediction set to ensure that the concentration distribution of the prediction set was uniform and the range did not exceed the calibration set.

[0045] T...

Embodiment 2

[0056] 1 Sample preparation

[0057] A total of 144 RDX samples with different moisture contents were prepared and used to build the entire data set. Each sample was placed in a uniform plastic packaging bag, and the whole experiment was carried out at room temperature 20±2°C.

[0058] 2 Determination of moisture content by chemical method

[0059] According to the national military standard "GJB772A-1997 Explosive Test Method", the chemical method-drying method is used to determine the moisture of the sample; the measured value is the content value (g) in 10 grams of the sample. The measurement results are shown in Table 4.

[0060] After sorting according to the moisture measurement value, 2 / 3 of the total samples (a total of 89 samples) were evenly selected as the calibration set, and the remaining 1 / 3 was used as the prediction set to ensure that the concentration distribution of the prediction set was uniform and the range did not exceed the calibration set.

[0061] T...

Embodiment 3

[0072] 1 Sample preparation

[0073] A total of 144 RDX samples with different moisture contents were prepared and used to build the entire data set. Each sample was placed in a uniform plastic packaging bag, and the whole experiment was carried out at room temperature 20±2°C.

[0074] 2 Determination of moisture content by chemical method

[0075] According to the national military standard "GJB772A-1997 Explosive Test Method", the chemical method-drying method is used to determine the moisture of the sample; the measured value is the content value (g) in 10 grams of the sample. The measurement results are shown in Table 5.

[0076] After sorting according to the moisture measurement value, 2 / 3 of the total samples (a total of 89 samples) were evenly selected as the calibration set, and the remaining 1 / 3 was used as the prediction set to ensure that the concentration distribution of the prediction set was uniform and the range did not exceed the calibration set.

[0077] T...

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Abstract

The invention discloses a method for rapidly measuring water content in an RDX explosive. The method comprises the following steps: preparing RDX explosive samples with different contents of water and measuring the water contents; collecting near infrared spectrums of the RDX explosive samples by using a SupNIR-2750 near infrared spectrum analyzer of Focused Photonics Inc., introducing the collected spectrum data in format of JCAMP-DX into chemometrics software The Uncrambler9.8, preprocessing the spectrum data, and establishing a calibration model between the water contents of the RDX samples and the preprocessed near infrared spectrums by using a partial least square method; and collecting the near infrared spectrums of the samples to be detected, preprocessing the near infrared spectrums, and calculating the water contents in the samples to be detected through the calibration model, wherein the spectrum scanning range of the collected near infrared spectrums is 1000-2500nm. The PLS regression model established by the method is high in reliability and excellent in prediction effect; rapid, accurate and non-destructive detection of the water content in the RDX explosive can be achieved.

Description

technical field [0001] The invention relates to the field of component detection of RDX explosives, in particular to a rapid detection method for the water content of RDX explosives. Background technique [0002] The traditional chemical analysis method formed in the explosives industry in the 1980s has high accuracy in analyzing constant components, but the analysis period is long and human error is large. For complex systems, new formulas and new characteristic products with more components and less content cannot Measure accurately. The existing propellant and explosive physical and chemical performance analysis and test methods cannot meet the needs of new parameter testing and evaluation for the new propellant and explosive complex system. This situation has endangered the development of new propellant and explosive products; However, due to the backward testing methods, it is difficult for a large number of analytical instruments and equipment invested in technical tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359G01N21/3554G01N21/3563
CPCG01N21/3554G01N21/3563G01N21/359
Inventor 刘志伟胡岚刘红妮温晓燕陈曼严蕊王婧娜董小虎
Owner XIAN MODERN CHEM RES INST