Brook­field Rota­tio­nal Vis­come­ters

Brook­field 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.

Rota­tio­nal 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

Brook­field vis­come­ters are the indus­try stan­dard in deter­min­ing abso­lute vis­cos­ity of all types of liquids with vis­cosi­ties as high as 320 mil­lion cen­tipoise. BYK-Gard­ner offers dig­i­tal mod­els for low – medium – high vis­cos­ity mate­rials.

Select­ing the Proper Brook­field Vis­come­ter

While vari­ous mod­els of the Brook­field vis­come­ter are rec­om­mended for high, medium, and low vis­cos­ity appli­ca­tions, these desig­na­tions are intended only as guide­lines. Mul­ti­ple speeds and interchange­able spin­dles on each vis­come­ter pro­vide many vis­cos­ity ranges for flex­i­bil­ity in appli­ca­tion. Select­ing the cor­rect model will ensure max­i­mum sen­si­tiv­ity and accu­racy in the mea­sured vis­cos­ity range.

Dig­i­tal Vis­come­ter DV-E