| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for detecting easily a deformation quantity caused by the strain of an object over a large area, and a device therefor. SOLUTION: This method for detecting the strain of the object includes a step for applying to the object a detection film including particles having the first surface intervals arrayed periodically and an elastic body for filling up intervals between the particles; a step for irradiating the object with light through the detection film; a step for receiving light reflected by particles in the detection film, namely, a step for receiving light reflected by particles having the first surface intervals when the strain is not generated in the object, and receiving light reflected by particles having the second surface intervals changed so as to fill a prescribed relation from the first surface intervals corresponding to the strain when the strain is generated in the object; and a step for detecting the strain of the object from the received light. COPYRIGHT: (C)2006,JPO&NCIPI
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