Explosive detection method based on portable mobile phone microscope

The technology of a portable mobile phone and a detection method is applied in the field of explosive detection, which can solve the problems of large size, limited scope of use, and high price of ordinary optical microscopes, and achieve the effects of improving sensitivity, responsiveness, and immediate results.

Inactive Publication Date: 2020-01-17
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ordinary optical microscopes have disadvantages such as bulky, expensive, and not easy to carry, and the scope of use in practical applications is limited

Method used

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  • Explosive detection method based on portable mobile phone microscope
  • Explosive detection method based on portable mobile phone microscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for detecting explosives based on a portable mobile phone microscope according to the present invention, the method involves a detection device consisting of a mobile phone support platform 1, a first knob 2, a first connecting rod 3, a gasket 4, a second connecting rod 5, The second knob 6, the third connecting rod 7, the imaging hole 8, the microscopic eyepiece 9, the lens barrel 10, the microscopic objective lens 11, and the stage 12 are composed of a mobile phone support platform 1 for carrying the mobile phone, and the mobile phone support platform 1- The gasket 4 on the first connecting rod 3 connected by the first knob 2 on the side adjusts the distance with the mobile phone, thereby compressing the mobile phone, fixing the second connecting rod 5 and the microscope eyepiece 9 respectively at the bottom of the mobile phone support platform 1, The second connecting rod 5 is fixed with the second knob 6, the third connecting rod 7 is inserted from the botto...

Embodiment 2

[0018] Described a kind of explosive detection method based on portable mobile phone microscope, this method relates to detection device and carries out according to embodiment 1:

[0019] a. Place the mobile phone on the mobile phone support platform 1, align the mobile phone camera with the imaging hole 8, rotate the first knob 2 to press and fix the mobile phone, open the mobile phone camera application program, and use the mobile phone camera to collect data, and seal it in an aluminum-plastic bag The hydrogel loaded with the explosive nitrate detection reagent is the detection substrate, the aluminum-plastic bag is torn open during detection, a small amount of potassium nitrate powder is stuck with the hydrogel, and spread on the stage 12;

[0020] b. Rotate the second knob 6 to adjust the focal length, adjust the extension length of the third connecting rod 7, and control the distance between the stage 12 and the microscope objective lens 11, so that the hydrogel micro-re...

Embodiment 3

[0023] Described a kind of explosive detection method based on portable mobile phone microscope, this method relates to detection device and carries out according to embodiment 1:

[0024] a. Place the mobile phone on the mobile phone support platform 1, align the mobile phone camera with the imaging hole 8, rotate the first knob 2 to press and fix the mobile phone, open the mobile phone camera application program, and use the mobile phone camera to collect data, and seal it in an aluminum-plastic bag The hydrogel loaded with the explosive chlorate detection reagent is the detection substrate, and the aluminum-plastic bag is torn open during detection, and a small amount of potassium chlorate powder to be tested is glued with the hydrogel, and spread on the stage 12;

[0025] b. Rotate the second knob 6 to adjust the focal length, adjust the extension length of the third connecting rod 7, and control the distance between the stage 12 and the microscope objective lens 11, so tha...

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Abstract

The invention discloses an explosive detection method based on a portable mobile phone microscope. A detection device involved in the method is composed of a mobile phone supporting platform, a firstrotary knob, a first connecting rod, a gasket, a second connecting rod, a second rotary knob, a third connecting rod, an imaging hole, a microscope eyepiece, a lens cone, a microscope objective and anobjective table. After the mobile phone microscope is amplified by one hundred times, the resolution ratio of the mobile phone microscope can reach the micron level, the imaging quality can be comparable to that of a common optical microscope, the view field can reach 1800 microns, and the characteristics of high image resolution ratio and large view field are achieved. During actual explosive detection, hydrogel soaked with a detection reagent is adopted for sampling, the color change of a micro area on the hydrogel is observed through the mobile phone microscope, the mobile phone photographing and camera shooting functions are adopted, the purpose of detecting and recognizing explosive particles in real time in a visual mode is achieved, and therefore the sensitivity and portability ofon-site explosive detection are remarkably improved. The method has the advantages of being small in size, light in weight, convenient to carry, free of professional training and the like. An effective technical means is provided for on-site explosive detection and analysis of a public security system.

Description

technical field [0001] The invention belongs to the field of explosive detection and relates to a method for detecting explosives using a portable mobile phone microscope. Background technique [0002] In recent years, the number of explosive terrorist incidents has gradually increased around the world, and there is an urgent need for rapid and convenient detection and analysis technology for explosives, especially at security inspection sites such as railway stations and airports, where high requirements are placed on the portability of detection equipment and the convenience of detection methods. Currently commercialized detection methods include ion mobility spectrometry, portable Raman technology, and X and γ-ray detection methods. X-rays can only detect the density and effective atomic number of an object, but cannot distinguish its chemical composition. Ion mobility spectrometry and portable Raman technology Man technology can identify explosive components, but ion mob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/01G02B21/36
CPCG01N21/01G01N21/78G02B21/362
Inventor 窦新存张麟声祖佰祎
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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