New viscosity measurement for magnetorheological polishing fluid

Markus Schinhaerl; Elmar Pitschke; Andreas Geiss; Rolf Rascher; Peter Sperber; Richard Stamp; Lyndon Smith; Gordon Smith

doi:10.1117/12.616690

19 August 2005 New viscosity measurement for magnetorheological polishing fluid

Markus Schinhaerl, Elmar Pitschke, Andreas Geiss, Rolf Rascher, Peter Sperber, Richard Stamp, Lyndon Smith, Gordon Smith

Author Affiliations +

Proceedings Volume 5869, Optical Manufacturing and Testing VI; 58690L (2005) https://doi.org/10.1117/12.616690
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

In Magnetorheological Finishing (MRF) a magnetic field is applied to a stream of abrasive magnetorheological fluid, in order that the fluid behaves as the polishing tool. The process may be used to finish the surface of high quality optical lenses. The fluid viscosity is one important parameter the polishing tool characteristic depends on. At the University of Applied Sciences Deggendorf a new viscosity measurement, which uses the inductance of the fluid had been tested. The result of the research is a close relationship between viscosity and inductance. The new viscosity measurement is not an absolute, but a comparative system, based on inductance of the flowing fluid and the fluid age.

Citation Download Citation

Markus Schinhaerl, Elmar Pitschke, Andreas Geiss, Rolf Rascher, Peter Sperber, Richard Stamp, Lyndon Smith, and Gordon Smith "New viscosity measurement for magnetorheological polishing fluid", Proc. SPIE 5869, Optical Manufacturing and Testing VI, 58690L (19 August 2005); https://doi.org/10.1117/12.616690

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