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Proceedings Paper

Development of a load cell based on fiber Bragg grating sensors
Author(s): Gianluca L. Rossi D.V.M.; Claudio CR Rondini
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Paper Abstract

The goal of this work is the development of a new application of fiber Bragg gratings sensors (FBG), in order to measure the pre-load transmitted to a couple of roll bearings, inside a high speed electro-mandrel. FBG sensors has been preferred to classical electrical strain gauges because of their intrinsic immunity to electromagnetic fields. This last are very strong in the application here considered, and moreover its effect cannot be easily filtered because it occur at the same frequency of the phenomena to observe. The mechanical component design, used to convert the preloading forces in measurable strain, is also illustrated. On this component the fiber optic sensor is installed and the load cell obtained is calibrated. An uncertainty value equal to 1% of the full scale, is obtained. The effective pre-load value induced by the tightening system on the rolling bearings has been measured with the system developed.

Paper Details

Date Published: 30 May 2003
PDF: 8 pages
Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); doi: 10.1117/12.499913
Show Author Affiliations
Gianluca L. Rossi D.V.M., Univ. degli Studi di Perugia (Italy)
Claudio CR Rondini, Univ. degli Studi di Perugia (Italy)

Published in SPIE Proceedings Vol. 5144:
Optical Measurement Systems for Industrial Inspection III
Wolfgang Osten; Malgorzata Kujawinska; Katherine Creath, Editor(s)

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