Gyroscopes are instruments capable of sensing changes in their inertial orientation. Satellites usually have gyroscopes within their Attitude and Orbit Control System as attitude (orientation) sensors that measure angular displacements. They are critical components and constantly monitored during the duration of the mission. In face of serious failures, proper corrective actions are possible, b...

We propose and demonstrate a novel fiber-optic gyroscope in the form of a mode-locked laser consisting of a laser cavity formed by a planar mirror at one end, a gain medium, and a Sagnac interferometer at the other end. The Sagnac interferometer serves as a reflector as well as a rotation-sensing element. The output of the gyroscope is a series of short optical pulses. The separation of two set...

Abstract The noise signal in the gyroscope is divided into four levels: sampling frequency level, device bandwidth resonant and carrier level. In this paper, dual-mass MEMS analyzed. Based on variational mode decomposition (VMD) algorithm, a novel reduction method proposed. VMD with different four-level center frequencies used to process original output of gyroscope, results are analyzed by All...

A novel fully decoupled micro inertial measurement unit (MIMU) is presented in this paper. The proposed MIMU structure, mostly focusing on the gyroscope unit, is highly symmetrical and can be limited to an area of 10,000 μm × 10,000 μm. Both the tri-axis gyroscope and tri-axis accelerometer structures are fabricated on the same single silicon chip, which can differentially detect three axes’ an...

This article deals with the analysis of effects passive control on complex dynamics a nonlinear damping gyroscope. After modeling gyroscope under influence force, using harmonic balance method, amplitudes oscillations are determined. Subsequently, Routh–Hurwitz criterion is used to analyze and determine stability domains oscillations. The force parameters amplitude studied. chaotic coexistence ...

Rapid camera rotations (e.g. camera shake) are a significant problem when real-time computer vision algorithms are applied to video from a handheld or head-mounted camera. Such camera motions cause image features to move large distances in the image and cause significant motion blur. Here we propose a very fast method of estimating the camera rotation from a single frame which does not require ...

A method was developed and applied for monitoring two types of fast-start locomotion (feeding and escape) of a cruiser fish, Japanese amberjacks Seriola quinqueradiata. A data logger, which incorporated a 3-axis gyroscope, a 3-axis accelerometer and a 3-axis magnetometer, was attached to the five fish. The escape, feeding and routine movements of the fish, which were triggered in tank experimen...

The cylindrical resonator gyroscope (CRG) is a typical Coriolis vibratory gyroscope whose performance is mostly influenced by the damping characteristic of the cylindrical resonator. However, the tremendous damping influences caused by pasting piezoelectric electrodes on the gyroscope, which degrades the performance to a large extent, have rarely been studied. In this paper, the dynamical model...

The characteristics of high shock resistance of a novel vibration beam structure gyroscope, namely Node-Plane Supporting Vibration Beam Gyroscopes (NPSG) were researched in this paper. NPSG is a novel rotating rate sensor, which used supporting planes located at node points instead of the supporting pins to support the vibration beam. In this paper, the sensing principle of the NPSG is presente...

This paper presents a nonlinear control for trajectory tracking and vibration control of a flexible joint manipulator by using chaotic gyroscope synchronization. To study the effectiveness of the controllers, designed controller is developed for tip angular position control of a flexible joint manipulator. Based on Lyapunov stability theory, the nonlinear controller and some generic sufficient ...