| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for measuring a longitudinal elastic modulus and an output pressure of a fixed cross-sectional operation body allowing non-contact and non-destructive measurement of the longitudinal elastic modulus in the same way as measurement of an output displacement quantity and allowing measurement of a minute output pressure caused in the fixed cross-sectional operation body with full load. SOLUTION: This measurement device is provided with a fixing means 2 for fixing the fixed cross-sectional operation body 1 in a cantilever form, an inputting means 3 applying alternating input from a fixed part 1b for oscillating the operation part, a displacement quantity measurement means 4 performing non-contact measurement of a displacement quantity due to oscillation in the operation part, and a computing means 5 performing a processing procedure for finding the full load. In the full load finding processing procedure in the computing means 5, after a resonance angular frequencyωmatching a primary oscillation form and an operation part tip displacement quantityδmax are found by using the information from the displacement quantity measuring means 4, the longitudinal elastic module E is computed from the resonance angular frequencyωand a known value according to an expression 1: E=ω2ρA/(a4I), and the full load is found from the longitudinal elastic modulus E and the displacement quantityδmax according to an expression 2: W=δmax.EI/(β.L3).
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