Thanks alot for your explanation.I just start my project and I will ask some manufactures to get more information. If i could get any useful information, I will post it here.
Thanks alot for your answer.
But if the tunning fork is oscilating at the resonance frequency,then there is only one shear rate. It's not possible to get more shear rates to measure the viscosity,right?
So normally, this kind of instrument can not be used for voscosity measurement of non-newton...
For in-line viscosity measurement in chemical process, there is a kind of Vibration viscometers which use Tuning fork Vibration Method. How can i calculate the shear rate between two sensor plates of this tunning fork? Will the shear rate be influenced by the driven frequency of this tunning fork?