Nondestructive inspection apparatus and nondestructive inspection method for composite structure

一种检查装置、构造物的技术，应用在测量装置、辐射的测量、仪器等方向
CN101971010AInactive Publication Date: 2011-02-09HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION
Publication Date
2011-02-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device for nondestructively examining the inside of the surface layer of a composite structure by using muons of cosmic rays and a nondestructive examination method are disclosed. The device is used for examining the inside of the surface layer of a composite structure (11) by using mu ons (12) of cosmic rays traveling generally horizontally and having spins polarized by predetermined degrees in the traveling direction. The device includes a positron / electron amount detecting means (13) for detecting the amount of positrons / electrons having characteristic time constants and reflected / emitted in the opposite direction to the direction of application of muons (12) when muons (12) which come to rest inside the composite structure (11) annihilate and radiography data processing means (14, 15, 16) for processing data relating to the state of a second substance (11-2) different from a first substance (11-1) of the surface layer present inside the surface layer of the composite structure (11) according to the detected amount of positrons / electron and outputting the state of the second substance (11-2) as a radiograph.
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Description

technical field

[0001] The present invention relates to a non-destructive inspection device and a non-destructive inspection method capable of inspecting the internal state of a composite structure such as a reinforced concrete building without any adverse effect on the structure. Background technique

[0002] For example, if the internal state of reinforced concrete structures such as buildings, viaducts, and dams (non-woven state of steel bars, etc.) Ultrasonic methods, infrared thermography methods, radar methods, and X-ray methods have been widely known as non-destructive inspection methods for inspection or detection without physical or chemical adverse effects. However, these methods significantly limit the inspection object, and there are limits on the resolution of the internal state and the depth inside the surface layer that can be detected.

[0003] Therefore, the inventors of the present application have proposed a non-destructive inspection method and apparatus...

Claims

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