The RealShear line of sensors represent the first commercially available system for measuring wall shear stress in applications such as industrial mixing, extrusion and pipelines, according to this company. The inline sensors provide continuous, realtime data measurement rates of up to 1,000 per second with no disruption of process flow. The RealShear sensors can also be used to calculate viscosity in combination with known flow parameters. RealShear sensors work by using micro-optical resonators to detect tiny lateral displacements at the face of the sensor when it experiences shear stress from particles and fluids with which it is in contact. These displacements cause the resonant spectrum of the micro-optical resonators to shift in ways that can be detected with light. Information on wall shear stress in mixer and extruders can help process engineers carefully control conditions for improve product consistency. Throughput may also be improved by ensuring that no unnecessary mixing is performed. — Lenterra Inc., Newark, N.J.
Measure wall shear directly with these sensors
| By Chemical Engineering