Virtual rheometer · parallel plates · frequency sweep
PP25, gap 1 mm · acrylic PSA (Tape B) at 23.0 °C · oscillation, CSD, γ₀ = 1 %
model data
What the instrument does
Point– / –ω–f–1 cycle–γ₀1 %φ₀0.046°τ₀–M–δ–tan δ–G′–G″–Real time0:00Temp.23.0 °C
Press start. The plate will oscillate at 16 frequencies from 100 down to 0.1 rad/s.
Live signals: strain and stress
Stress over strain (one cycle)
Frequency sweep
Your Chang window (from the four values at 0.01 and 100 rad/s)
Model data (spectra of the model tapes of this article series). The oscillation is shown in time lapse – every frequency is drawn at a visible speed; the display shows the real period and the real test time. The deflection angle is exaggerated about 300×: the real angle is only 0.046°.