Abstract
In this report, a forced torsional oscillator (FTO) for measuring dynamic properties from 0. 01 to 30 Hz and minus 190 degree to plus 250 degree C is described. It uses digital transfer function analyzer (DTFA) to determine G prime and G double prime directly. The DTFA has a phase angle resolution of 0. 1 degree . Other errors such as clamping corrections and instrument phase shift are discussed. FTO measurements on polymethylmethacrylate and polycarbonate compare well with free torsion pendulum data. Design of the forced torsion oscillator system is included.
| Original language | English (US) |
|---|---|
| Pages | 408-410 |
| Number of pages | 3 |
| State | Published - Jan 1 1976 |
| Event | SPE Annu Tech Conf, 34th, Proc - Atlantic City, NJ Duration: Apr 26 1976 → Apr 29 1976 |
Other
| Other | SPE Annu Tech Conf, 34th, Proc |
|---|---|
| City | Atlantic City, NJ |
| Period | 4/26/76 → 4/29/76 |
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