Development of a load cell based on fiber Bragg grating sensors

Gianluca L. Rossi D.V.M.; Claudio CR Rondini

doi:10.1117/12.499913

30 May 2003 Development of a load cell based on fiber Bragg grating sensors

Gianluca L. Rossi D.V.M., Claudio CR Rondini

Proceedings Volume 5144, Optical Measurement Systems for Industrial Inspection III; (2003) https://doi.org/10.1117/12.499913
Event: Optical Metrology, 2003, Munich, Germany

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.

Citation Download Citation

Gianluca L. Rossi D.V.M. and Claudio CR Rondini "Development of a load cell based on fiber Bragg grating sensors", Proc. SPIE 5144, Optical Measurement Systems for Industrial Inspection III, (30 May 2003); https://doi.org/10.1117/12.499913

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