| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio type distortion sensor capable of being easily applied to a movable test piece and detecting even large distortion. SOLUTION: A closed curve 7 formed by conductive material is secured on a surface of a non-conductive sheet 1, and the sheet 1 is adhered to a surface of the test piece 6 measured for expansion distortion so as to make an area of a range surrounded by the closed curve 7 change according to the expansion distortion of the test piece 6. |
