Fibre Optic Gyroscope: Fibre Winding Machine Design and Construction

Jackson, Samuel (2013). Fibre Optic Gyroscope: Fibre Winding Machine Design and Construction Honours Thesis, School of Engineering, The University of Queensland.

       
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Author Jackson, Samuel
Thesis Title Fibre Optic Gyroscope: Fibre Winding Machine Design and Construction
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2013
Thesis type Honours Thesis
Supervisor Michael Creagh
Total pages 154
Language eng
Subjects 0913 Mechanical Engineering
Formatted abstract
Modern Fibre Optic Gyroscopes have replaced existing mechanical gyroscopes in many high performance applications, including high accuracy inertial guidance within the aerospace industry. Fibre optic gyroscopes consist of a coil of optical fibre which utilises two light beams, the sagnac effect and an interferometer to determine changes in rotation. The automation of optical fibre winding for gyroscope applications is notoriously difficult due to the small size and fragility of the fibres. An automated winding machine capable of producing single coil gyroscopes has been designed and partially manufactured. This machine is able to wind polarisation maintaining or single core fibres of varying length and diameters onto a broad range of fibre optic gyroscope sizes. Optimum tensioning of the fibre is achieved during winding via the use of an encoder that actively measures fibre strain. The accurate alignment of fibre on the gyroscope is facilitated by the use of a precision guide wheel actuated by a low-lead ball screw. In anticipation of unpreventable winding mistakes, the use of image processing to detect and remedy errors is proposed. Gyroscopes wound by this machine are expected to have a drift error of no greater than 0.5°/hr and a signal loss of no more than 10dB.
Keyword Fibre Optic Gyroscope

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Fri, 04 Dec 2015, 13:45:44 EST by Asma Asrar Qureshi on behalf of Scholarly Communication and Digitisation Service