Design optimization of a laser path length controller through numerical analysis and experimental validation

Fenercioğlu, Tevfik Ozan; Yalçınkaya, Tuncay

doi:10.3233/jae-190019

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…FE modeling of the mechanics of rotations sensors is also utilized for RLG sensors as well as FOG sensors [33]. Thanks to FE methodology, deflections and stress distributions on the sensitive parts of optical sensors working with the Sagnac principle can be computed accurately [34,35].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis and Multiscale Modeling of the Dynamics of a Fiber-Optic Coil

Kahveci

Gençoğlu

Yalçınkaya

2022

Sensors

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Fiber-optic gyroscopes (FOGs) are common rotation measurement devices in aerospace applications. They have a wide range of diversity in length and in the winding radius of the coil to meet system requirements. Every dimensional parameter in the coil influences the dynamic response of the system, eventually leading to measurement errors. In order to eliminate the errors and to qualify the system, after the design and production stages, a deep and comprehensive testing procedure follows. In this study, the dynamic behavior of a quadrupole wound fiber-optic coil is investigated. First, pre-wound fiber-optic coils are tested with an impact modal test, where the mode shapes and natural frequencies are determined with structural data acquisition. For the modal analysis, a finite element (FE) model is developed where a representative volume element (RVE) analysis is also included to properly consider the influence of the microstructure. The experimental and numerical results are compared and validated. Moreover, an estimation model is proposed for a type of coil with different fiber lengths. Finally, the estimated coil set is produced and tested employing the same methodology in order to illustrate the capacity of the developed framework.

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Section: Introductionmentioning

confidence: 99%

Experimental Analysis and Multiscale Modeling of the Dynamics of a Fiber-Optic Coil

Kahveci

Gençoğlu

Yalçınkaya

2022

Sensors

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“…These studies mostly consider the role of stiffness on deflections. Designs of the membrane and mirror are optimized to maximize vertical deflections and to minimize horizontal deflections, also called mirror-tilt (see [ 17 , 18 , 19 ]).…”

Section: Introductionmentioning

confidence: 99%

Computational–Experimental Design Framework for Laser Path Length Controller

Fenercioğlu

Yalçınkaya

2021

Sensors

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The application areas of piezoelectric materials are expanding rapidly in the form of piezo harvesters, sensors and actuators. A path length controller is a high-precision piezoelectric actuator used in laser oscillators, especially in ring laser gyroscopes. A path length controller alters the position of a mirror nanometrically by means of a control voltage to stabilize the route that a laser beam travels in an integral multiple of laser wavelength. The design and verification of a path length controller performance requires long (up to 3 months), expensive and precise production steps to be successfully terminated. In this study, a combined computational–experimental design framework was developed to control, optimize and verify the performance of the path length controller, without the need for ring laser gyroscope assembly. A novel framework was structured such that the piezoelectric performance characteristics were calculated using finite element analysis. Then, a stand-alone measurement system was developed to verify the finite element analysis results before system integration. The final performance of the novel framework was verified by a direct measurement method called mode-scanning, which is founded on laser interferometry. The study is concluded with the explanation of measurement errors and finite element correlations.

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Design optimization of a laser path length controller through numerical analysis and experimental validation

Cited by 2 publications

References 15 publications

Experimental Analysis and Multiscale Modeling of the Dynamics of a Fiber-Optic Coil

Experimental Analysis and Multiscale Modeling of the Dynamics of a Fiber-Optic Coil

Computational–Experimental Design Framework for Laser Path Length Controller

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