| 摘要 |
PROBLEM TO BE SOLVED: To re-exhibit display of incorporated physical numerical value and control of specific function, in clamping function of a screw, other than the established function of a screw in known technology.SOLUTION: The present invention provides a sensitive screw, and a device having a sensitive characteristic that utilizes it, enabling simultaneous pre tension to a fiber grating and a bolt. By performing measurement of a large scale public construction structure or feedback control of precision equipment, manufacturing of a product of precise elements is attained, exhibiting recording of more precise control and manufacturing steps. With a precision system configuration comprising the sensitive screw device, further improvement of a product is expected, and further, sufficiently and in detail, entire manufacturing process, an important position in manufacturing step, and physical nature are recorded, and, accumulation of current and past data or expectation of parameters is performed, to prevent erroneous accumulation, and further, improvement in efficiency or safety of large scale structure is intended. |
