VDW Verein Deutscher Werkzeugmaschinenfabriken e.V.

The WSS system consists of a RealShear sensor, the Lenterra Optical Interrogator (LOI)and ruggedised laptop with bespoke software.

The system provides an in-line, real-time assessment of liquid flow enabling improvements in process understanding and manufacturing efficiency in various industries.

FEATURES

• In-line, real-time measurement
• Bi-directional sensitivity
• Chemically resistant construction
• Fibre optic connectivity
• High measurement rate

APPLICATIONS

• High-shear mixers
• High-shear blending
• Bioprocessing pumps
• Jets & sprays
• Measurement of dynamic viscosity

HOW IT WORKS

The RealShear sensor is mounted flush with a pipe, vessel wall or rotor-stator workhead providing a real-time measurement of wall stress.

The sensor consists of a floating element attached to a cantilever beam that deflects in response to shear force as liquid flows across its surface. The cantilever transmits the shear force to two optical strain gauges, or Fibre Bragg Gratings (FBG), mounted internally. When the beam is deflected, one FBG is extended and the other is compressed, leading to a shift in wavelength that quantifies flow force and
temperature. A larger deflection results in a greater shift.

BENEFITS

• Enhance process understanding
• Improve product quality and consistency
• Optimise cycle times
• Accelerate / simplify scale up
• Minimise ‘out of specification’ material and rework
• Improve compliance
• Reduce costs (rework, resample, retesting etc.)

For more information please visit the Freeman Technology website.