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A vibrating reed apparatus for measuring the dynamic mechanical properties of polymers
Author(s) -
Newman Seymour
Publication year - 1959
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1959.070020613
Subject(s) - capacitance , materials science , linear variable differential transformer , amplitude , transformer , composite material , displacement (psychology) , modulus , acoustics , electrical engineering , optics , electrode , physics , voltage , distribution transformer , engineering , psychology , quantum mechanics , psychotherapist
A vibrating reed apparatus for the measurement of dynamic Young's modulus has been constructed. The apparatus utilizes ( a ) a sensitive capacitance pick‐up to measure displacement of a reed having approximately 0.001 g. of silver painted on the free end of the reed, ( b ) a clamp assembly which permits placement of the specimen in small temperature‐controlled chambers, and ( c ) a linear variable differential transformer to facilitate maintenance of constant amplitude (independent of frequency) of the clamped end of the reed.