High-Q microsphere resonators for angular velocity sensing in gyroscopes

Panlong An; Yongqiu Zheng; Shubin Yan; Chenyang Xue; Wanjun Wang; Jun Liu
February 2015
Applied Physics Letters;2/9/2015, Vol. 106 Issue 6, p1
Academic Journal
A resonator gyroscope based on the Sagnac effect is proposed using a core unit that is generated by water-hydrogen flame melting. The relationship between the quality factor Q and diameter D is revealed. The Q factor of the spectral lines of the microsphere cavity coupling system, which uses tapered fibers, is found to be 106 or more before packaging with a low refractive curable ultraviolet polymer, although it drops to approximately 105 after packaging. In addition, a rotating test platform is built, and the transmission spectrum and discriminator curves of a microsphere cavity with Q of 3.22 x 106 are measured using a semiconductor laser (linewidth less than 1 kHz) and a realtime proportional-integral circuit tracking and feedback technique. Equations fitting the relation between the voltage and angular rotation rate are obtained. According to the experimentally measured parameters, the sensitivity of the microsphere-coupled system can reach 0.095°/s.


Related Articles

  • APPLICABILITY STUDY OF THE FIBER-OPTIC GYRO IN PISTON ENGINES DIAGNOSING PROCESS. Lus, Tomasz; Łutowicz, Marek; Cuper, Dominika // Agricultural Engineering, Research Papers;2014, Vol. 46 Issue 1, p40 

    The Polish Naval Academy has been involved in marine reciprocating combustion engines indication tests for many years. Results of researches aiming to diagnostic using of measurement of engine crankshaft unsteady angular speed are presented in the paper. Up to now, adequate accuracy of angular...

  • Characterization of the Bell-Shaped Vibratory Angular Rate Gyro. Ning Liu; Zhong Su; Qing Li; Mengyin Fu; Hong Liu; Junfang Fan // Sensors (14248220);Aug2013, Vol. 13 Issue 8, p10123 

    The bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a novel shell vibratory gyroscope, which is inspired by the Chinese traditional bell. It sensitizes angular velocity through the standing wave precession effect. The bell-shaped resonator is a core component of the BVG and looks...

  • Rate Sensor Measures Angular Velocity In Harsh Environments.  // Sensors;7/7/2014, p1 

    The article offers brief information on Model 620 angular rate sensor from Measurement Specialties Inc.

  • Micro-machined Gyroscope Mathematical Model and Error Analysis. Miaowen Deng; Bing Mo; Chaodong Ling; Ronghai Huang; Suki Kim // Key Engineering Materials;2014, Vol. 609-610, p1144 

    The micro-machined gyroscope that uses Coriolis force to measure angular velocity has non-linear error, which makes the amplitude of angular velocity have a relationship with its frequency, and fabrication technology error, which leads gyroscope's drive shaft and detection shaft not to be...

  • Design of the Digital in Signal Processing Platform of the Gyroscope Based On FPGA. Wang Di; Zhou Jiajun; Chen Song; Yao Ying; Yin Liang; Liu Xiaowei // Key Engineering Materials;2014, Vol. 609-610, p903 

    Gyroscope is a sensor that measure angular velocity which is widely used in various fields. The analog processing technology of Gyro-signal is very mature, but due to the noise and other shortcomings of the analog circuit, the development of micro-mechanical gyroscope is limited. Digital...

  • Analytic Error Assessment of Gyro-Free INS. Klein, Itzik // Journal of Applied Geodesy;Mar2015, Vol. 9 Issue 1, p49 

    Agyro-free INS consists of at least six distributed accelerometers capable of obtaining linear and angular acceleration and thereby capable of functioning as a conventional INS. Most of the research in the gyro-free field focused on seeking optimal accelerometer configurations and less attention...

  • Sagnac gyroscope using a two-dimensional array of coupled optical microresonators. Toland, John; Search, Christopher // Applied Physics B: Lasers & Optics;Mar2014, Vol. 114 Issue 3, p333 

    Micron-scale-integrated optical gyroscopes based on the Sagnac effect have a broad array of potential applications in navigation and inertial motion sensing due to the benefit of on-chip integration and potential sensitivities exceeding micro-electromechanical gyroscopes. Here, we analyze the...

  • Mathematical models for principles of gyroscope theory. Usubamatov, Ryspek // Mathematics in Engineering, Science & Aerospace (MESA);2016, Vol. 7 Issue 4, p637 

    Gyroscope devices are primary units for navigation and control systems that have wide application in engineering. The main property of the gyroscope device is maintaining the axis of a spinning rotor. This gyroscope peculiarity is represented in terms of gyroscope effects in which known...

  • Method for Constraining Light Speed Anisotropy by Using Fiber Optics Gyroscope Experiments. Sfarti, A. // Physical Review & Research International;Jul-Sep2013, Vol. 3 Issue 3, p161 

    The Mansouri-Sexl theory is a well known test theory of relativity. Mansouri and Sexl dealt with the theory of the Michelson-Morley, Kennedy-Thorndike and Ives-Stilwell experiments but left out the very interesting Sagnac experiment. In the following paper we will present a novel way of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics