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DESKTOP COMPUTER BASED COLLECTION AND ANALYSIS OF CREEP‐COMPLIANCE DATA ON FLUID FOODS
Author(s) -
RAO M. A.,
KASH S. F.,
COOLEY H. J.,
BARNARD J.
Publication year - 1987
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1987.tb00915.x
Subject(s) - creep , microcomputer , subroutine , rheology , rheometer , fortran , nonlinear system , computer program , computer science , compliance (psychology) , stress (linguistics) , materials science , composite material , programming language , physics , psychology , telecommunications , social psychology , chip , linguistics , philosophy , quantum mechanics
In a creep‐compliance test, the strain due to an imposed stress is recorded as a function of time. Subsequently, the strain is converted to creep‐compliance and the rheological parameters: compliances, retardation times, and viscosities are evaluated by a graphical method suggested by Inokuchi. A Macintosh Plus microcomputer was programmed in Basic language to collect time‐strain data from a Deer Rheometer III. A Fortran language program was written first to compute creep‐compliance from strain and subsequently to estimate rheological parameters using a nonlinear parameter estimation subroutine. Initial values for the nonlinear analysis were estimated by the computer program by means of a modified Inokuchi's method.