92168.pdf

248 Rheology

Torsion

wire

( J Mirror

JL

Variable speed

motor

Figure 9.2 A concentric cylinder (Couette) viscometer

forces and normal forces (i.e. forces which tend to push the cone

upwards; see page 261) to be measured either in rotation or in

oscillation.

Cone Sample

Plate

Figure 9.3 Cone and plate method