Method and apparatus for performing dynamic mechanical analyses

Details Method and apparatus for performing dynamic mechanical analyses Method and apparatus for performing dynamic mechanical analyses

2005-04-19

2005-04-19

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Hardness

By penetrator or indentor

Reexamination Certificate

active

06880385

ABSTRACT:
In a dynamic mechanical analysis, a test specimen is coupled to an excitation device by a holder device. An excitation force made up of a static pre-tensioning force component and a time-variable force component is applied to the test specimen, and a deformation of the test specimen is measured by one or more displacement sensors. In a test phase an excitation force is applied to the test specimen, while at least one decision parameter is determined. The decision parameter is indicative of a degree of slack in the coupling of the test specimen. Based on the comparison between the decision parameter and at least one reference value it is determined whether or not the test specimen is coupled to the excitation device in a completely slack-free state, so that any measured physical values will not be subjected to errors caused by an insufficient amount of the pre-tensioning force.

REFERENCES:
patent: 3969930 (1976-07-01), Prevorsek et al.
patent: 4466292 (1984-08-01), Milazzo
patent: 5287749 (1994-02-01), Nakamura
patent: 5641058 (1997-06-01), Merten et al.
patent: 6058784 (2000-05-01), Carroll et al.
patent: 6098465 (2000-08-01), Matsumoto et al.
patent: 222120 (1985-05-01), None
patent: 4229549 (1994-03-01), None
patent: 0921388 (1999-06-01), None
Gerhardt, Joachim, Amplituden-Und Null- Lageregelung für Sinusförmige . . . , in: TM-Technishes Messen 67, 2000, 6, S. 274-282.

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