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AssigneeAgency of Industrial Science and Technology
InventorsChao-Nan Xu, Morito Akiyama, Kazuhiro Nonaka, Tadahiko Watanabe
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This invention is to provide a method and a system which, by making use of a stress luminescent material, renders it possible to directly observe a stress distribution on the base of a real time without electrical contacts, and to easily measure a stress or a stress distribution and a stress image. Essentially, the invention comprises the steps of adding a stress to a tested body containing a stress luminescent material whose light emission is proportional to the stress, making visually observable a stress distribution over the tested body in accordance with a luminous intensity of the stress luminescent material contained in the tested body, measuring the luminous intensity of the luminescent material of the tested body, comparing the measured value of the luminous intensity with certain correlation data indicating a relationship between the luminous intensity of the stress luminescent material and a stress, thereby obtaining a stress value or a stress distribution over the tested body.
A method for measuring a stress distribution using a stress luminescent material, characterized in that said method comprises the steps of adding a stress to a tested body containing a stress luminescent material whose light emission is proportional to the stress, making visually observable a stress distribution over the tested body in accordance with a luminous intensity of the stress luminescent material contained in the tested body.
A method for measuring a stress or a stress distribution using a stress luminescent material, characterized in that said method comprises the steps of adding a stress to a tested body containing a stress luminescent material whose light emission is proportional to the stress, comparing a detected value of the luminous intensity of the stress luminescent material contained in the tested body with certain correlation data indicating a relationship between the luminous intensity of the stress luminescent material and a stress, thereby obtaining a stress value or a stress distribution over the tested body.
A system for measuring a stress or a stress distribution using a stress luminescent material characterized in that said system comprises a tested body containing a stress luminescent material whose light emission is proportional to the stress;
A system for measuring a stress picture using a stress luminescent material, characterized in that said system comprises a tested body containing a stress luminescent material whose light emission is proportional to the stress;
Dependencies are inferred from the claim text.