Measurement of tension using natural frequency of vibration

Details Measurement of tension using natural frequency of vibration Measurement of tension using natural frequency of vibration

1996-10-31

1998-05-12

Oda, Christine K.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

7386241, G01N 2912

Patent

active

057508941

ABSTRACT:
A method of determining the tension in a guy wire or other flexible member. The first 15 natural frequencies for the design tension and tensions at 1 percent increments above and below the design tension are calculated. The actual first 15 natural frequencies are then determined, and the tension in the wire is the one whose calculated frequencies are most similar to the actual frequencies. The method is sensitive enough to use the wind to excite the wire or it can be manually struck to produce vibrations.

REFERENCES:
patent: 2923150 (1960-02-01), Imboden
patent: 3675471 (1972-07-01), Bouche
patent: 3942369 (1976-03-01), Roggenstein
patent: 4565099 (1986-01-01), Arnold
patent: 4739646 (1988-04-01), Van Brederode
patent: 5228893 (1993-07-01), Smithgall

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