BYK Gardner USA
Group: Altana

Rotational viscometer
BYK Gardner USA

Rota­tio­nal vis­come­ters have become a stan­dard in vir­tu­ally all indus­tries. They mea­sure vis­cos­ity by sens­ing the torque required to rotate a spin­dle at con­s­tant speed while immersed in fluid. The torque is pro­por­tio­nal to the vis­cous drag on the spin­dle; thus the sam­ple vis­cos­ity.

Ratio­nal vis­come­ters offer sev­eral advan­tages:

* The cont­in­u­ous rota­tion of the spin­dle allows mea­sure­ments to be made over time, per­mitt­ing anal­y­sis of time-depen­dent fluids
* The rate of shear is con­s­tant, so both New­to­nian and non-New­to­nian fluids can be tested
* By rotat­ing the spin­dle at sev­eral dif­fer­ent speeds, shear depen­dent behavior can be ana­lyzed
  • zoom



standListOtherProduct www di En 2012-05-21-24