Electronic manufacturing process improvement (EMPI) for automatic winding of quadrupole fiber optic gyro sensor coils

Gregory S. Safonov

doi:10.1117/12.187441

28 September 1994 Electronic manufacturing process improvement (EMPI) for automatic winding of quadrupole fiber optic gyro sensor coils

Gregory S. Safonov

Author Affiliations +

Proceedings Volume 2290, Fiber Optic Materials and Components; (1994) https://doi.org/10.1117/12.187441
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The purpose of this EMPI program was to design an Automatic Coil Winding Station (ACWS) for winding Fiber Optic Gyro (FOG) sensor coils through the use of TQM, QFD, etc., followed by use of Taguchi an other statistical techniques to optimize the coil winding process. Four phases were involved: Process Definition, Critical Factor Identification, Variability Reduction, and SPC Implementation. Winding FOG coils is both difficult and fragile in that it is a quadrupole wind - as apposed to the conventional thread wind - compounded by the requirement for low tension precision, high-fiber packing density, and always risk of damage to the delicate fiber itself. The critical factor identification in the quadrupole winding process was reduced to fiber crossover - a significant detrimental influence on gyro performance - which, in turn, was closely identified with fiber gap control. The station was completed and deployed to the field where production coils are currently being wound. The ACWS not only lowered the required labor skill but succeeded in reducing the winding cycle time to 1 hour (from 24 hours) and touch labor time to 0.3 hours (from 24 hours) while improving the yield and performance through improved process control.

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Gregory S. Safonov "Electronic manufacturing process improvement (EMPI) for automatic winding of quadrupole fiber optic gyro sensor coils", Proc. SPIE 2290, Fiber Optic Materials and Components, (28 September 1994); https://doi.org/10.1117/12.187441

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