Frequently Asked Questions - Technology

Please select a question category

FAQ - Technology

In 1981, Sofraser patented the first viscometer maintained in vibration at its resonance frequency.
More than 30 years later, we still use this technology because it has been proven to be the best for process viscosity measurement.>

>It is the natural vibration frequency of a mechanical system (like a diapason). The resonance frequency allows a system to oscillate with the the greatest amplitude of a vibration. In our system, the amplitude of the vibrating rod is about 0.1 mm.>

No. The viscometer vibrating at resonance frequency is not affected by external vibrations and disturbances.>

Intranet Access

Expertise and innovation in viscosity measurement and control


"It is Sofraser’s mission to build and maintain strong partnerships with our global network, our key accounts and OEM customers.

Long-lasting products, on-going support, and satisfied customers are direct results of our qualified and knowledgeable group of sales representatives."

Jean-Marie DUBOYS,
OEM & KA Manager