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Checking method and system for flammable liquid in small non-metal container

A non-metallic container, flammable liquid technology, used in safety inspection applications, non-destructive inspection, microwave non-destructive testing

Inactive Publication Date: 2005-02-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no inspection method and system proposed by the present invention to realize the inspection of non-metallic packaging flammable liquids.

Method used

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  • Checking method and system for flammable liquid in small non-metal container
  • Checking method and system for flammable liquid in small non-metal container
  • Checking method and system for flammable liquid in small non-metal container

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Embodiment Construction

[0051] please see figure 1 : 1 is a commercially available 10GHz microwave source. The microwave generated by the microwave source is connected to the input end of the power divider 2 through the microwave coaxial transmission line. Among them, the other route is sent to the transmitting antenna 3 for transmission through the microwave coaxial transmission line, and is sent to the core circuit 7 through the microwave coaxial transmission line after being received by the receiving antenna 4. For a detailed description of the core circuit 7, please refer to figure 2 and image 3 instruction of. The power divider 2 adopts the commercially available power divider JGF821B. Antennas 3 and 4 are a pair of commercially available horn antennas. 5 is the shell of the whole system. The casing between the transmitting antenna and the receiving antenna is a material that is easily transparent to microwaves. 6 is the inspected liquid and its container. 7 is a core circuit that measures...

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Abstract

A method for inspecting inflammable liquid packed in nonmetal container of small size includes placing detected liquid on pressure transducer in between emitting antenna and receiving antenna, measuring phase difference of microwave penetrating liquid to be detected and measuring weight of detected liquid, and determinating whether liquid is inflammable one or not according to phase difference and weight. A system for realizing the method is also disclosed.

Description

technical field [0001] A method and system for inspecting flammable liquids packaged in small non-metal containers belong to the technical field of non-destructive inspection, and in particular relate to the field of microwave non-destructive inspection and the application field of safety inspection. Background technique [0002] Inflammable liquid inspection is a safety inspection topic proposed in recent years. It is proposed to prevent flammable and explosive liquids from entering important public places such as airplanes, trains, stadiums, and conference halls. At present, there is no inspection method and system proposed by the present invention to realize the inspection of flammable liquids in non-metallic packaging. [0003] Using microwaves to measure the dielectric constant of objects has been widely studied, and there are different measurement methods for different applications. Microwave transmission method is one of the better methods for microwave measurement o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/10G06F19/00
Inventor 梁漫春张志康康克军衣宏昌童德春林谦
Owner TSINGHUA UNIV
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