METHOD OF CHARACTERIZING THE VISCOELASTIC PROPERTIES OF A SAMPLE, CORRESPONDING SYSTEM AND ANALYZER

A method of characterizing viscoelastic properties of a sample of a substance, includes the application (52) to the sample of an oscillatory mechanical excitation, the measurement (54) of a response of the sample to the mechanical excitation and the determination (56, 58) of characteristic parameter...

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Bibliographic Details
Main Author HANUSSE, PATRICK
Format Patent
LanguageEnglish
French
German
Published 24.07.2013
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A method of characterizing viscoelastic properties of a sample of a substance, includes the application (52) to the sample of an oscillatory mechanical excitation, the measurement (54) of a response of the sample to the mechanical excitation and the determination (56, 58) of characteristic parameters of the viscoelastic properties of the sample, is characterized in that the determination (56, 58) of characteristic parameters includes the steps of expressing the response in the form of a nonlinear periodic response signal, of general form x(t)=x0+x1 cos(phi(t)-rho0), where phi(t) is the phase of the signal, and of determining viscoelasticity parameters, characterizing the nonlinearity of the response signal.
Bibliography:Application Number: EP20110773502