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Conferences > OFS > 2023 > Th6 > Th6.82

Optical Fibre Based Angle Measurement for Robotic Joints

Sivaji Pillai, Thomas O.H. Charrett, Thomas Kissinger, James H. Barrington, Stephen W James, and Ralph P. Tatam

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Abstract

Abstract: A multiplexed array of optical fibre based angle sensors for deployment on multiple joints of a robotic arm is demonstrated. Two optical fibres, each containing an array of fibre segment interferometers, are bonded either side of the neutral axis of a thin, flexible metal tape. Differential measurement of the phases of corresponding interferometers in the two fibres yields an angle measurement with resolution better than 0.001° over a bandwidth of 21 kHz when demodulated using the principles of range resolved interferometry.

© 2023 The Author(s)

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