Viscosity Measurement
Rheosense have successfully introduced the first-of-its kind microliter-scale sample, flow-through viscometer/rheometer-on-a-chip (VROC®) for viscosity measurement. The VROC measures the viscosity of both non-Newtonian and Newtonian liquids, and offers far more capability than conventional viscometers, including true viscosity measurements of microliter-scale samples at high shear rates. Ideally suited for many types of sample from protein solutions to printing inks, if you’ve been looking for accuracy, reliability, speed, and quality by design in a viscometer/Rheometer then take a look at the VROC range.
VROC is the smallest viscometer built in a chip, which provides a complete viscosity characterization over the wide range of shear rates of any liquid. This chip has been proven for its precision and accuracy, and adopted for the viscosity characterization method for high throughput systems. For ink rheology characterization, VROC’s micron scale of the flow path in the chip is very similar to actual inkjet conditions. This feature provides viscosity measurement beyond 10^5 s-1, thus simulating actual inkjet conditions. Because of its range and accuracy, VROCTM is a very important instrument for characterizing inks over the complete shear rate range and for quality control.
Capable of viscosity measurements on samples of just 50µl, the VROC can be used to measure viscosities of proteins which is an important tool in formulating therapeutic drugs because of their increasing use of high concentration proteins. Samples can be measured at either constant flow rate or shear rate and a routine for measuring samples over several flow/shear rates can be programmed by the user.
Get more information about the VROC viscosity measurement instruments.