Thermomechanical analyzer

Details Thermomechanical analyzer Thermomechanical analyzer

1991-10-11

1994-02-22

Raevis, Robert

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

G01N 332

Patent

active

052877493

ABSTRACT:
A thermomechanical analyzer for efficiently measuring the dynamic viscoelasticity of a sample piece. The analyzer is provided with a function generator, a stress applier, a strain detector, an analog-to-digital converter, a memory and a Fourier transform processor. The function generator generates a sine wave signal to induce a sine wave stress-strain response in the sample piece. This response is Fourier-transformed by the processor to calculate the dynamic viscoelasticity of the sample piece.

REFERENCES:
patent: 3699808 (1972-10-01), Ford et al.
patent: 3948091 (1976-04-01), Voll
patent: 3969930 (1976-07-01), Prevorsek et al.
patent: 4794788 (1989-01-01), Masters et al.
patent: 4967601 (1990-11-01), Teramoto
patent: 5079955 (1992-01-01), Eberhardt
Wen et al., "Measurement of Dynamic Viscoelastic Properties of Corn Horny Endosperm", J. of Materials, vol. 5, No. 4, Dec. 1970.

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