Results 41 to 50 of about 70,228 (250)

Gas Damping Coefficient Research for MEMS Comb Linear Vibration Gyroscope [PDF]

open access: yes, 2007
Silicon-MEMS gyroscope is an important part of MEMS (Micro Electrical Mechanical System). There are some disturb ignored in traditional gyroscope that must be evaluated newly because of its smaller size (reach the level of micron).
Feng, S.   +3 more
core   +1 more source

Microresonator Brillouin Gyroscope [PDF]

open access: yesNonlinear Optics, 2015
Using counter-propagating Brillouin lasers in a high-Q chip-based resonator, rotation measurement with a sensitivity of 15 degree/hour/ Hz is demonstrated. This is close to navigation grade performance and surpasses prior micro-optical systems by 40X.
Li, Jiang   +2 more
openaire   +2 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Mobile Robot Integrated with Gyroscope by Using IKF

open access: yesInternational Journal of Advanced Robotic Systems, 2011
This paper mainly proposes absolute positioning instruments using camera positioning system and compass. The absolute positioning systems are used to estimate absolute position and orientation errors combined with estimated position and orientation from ...
Surachai Panich, Nitin Afzulpurkar
doaj   +2 more sources

A mathematical model for motions of gyroscope suspended from flexible cord

open access: yesCogent Engineering, 2016
Gyroscope devices are primary units for navigation and control systems in aviation and space engineering. The main property of the gyroscope is maintaining the axis of a spinning rotor, based on the principles of the angular momentum of the spinning ...
Ryspek Usubamatov
doaj   +1 more source

Research on Filtering Algorithm of MEMS Gyroscope Based on Information Fusion

open access: yesSensors, 2019
As an important inertial sensor, the gyroscope is mainly used to measure angular velocity in inertial space. However, due to the influence of semiconductor thermal noise and electromagnetic interference, the output of the gyroscope has a certain random ...
Hui Guo, Huajie Hong
doaj   +1 more source

Humidity Drift Modeling and Compensation of MEMS Gyroscope Based on IAWTD-CSVM-EEMD Algorithms

open access: yesIEEE Access, 2021
A novel fusion algorithm is proposed based on Improved Adaptive Wavelet Threshold De-noising (IAWTD), C-means Support Vector Machine (CSVM) and Ensemble Empirical Mode Decomposition (EEMD) method to eliminate the humidity drift of MEMS gyroscope. Firstly,
Huiliang Cao   +3 more
doaj   +1 more source

Fiber-Optic-Gyroscope Measurements Close to Rotating Liquid Helium

open access: yes, 2009
We previously reported anomalous fiber-optic gyroscope signals observed above rotating rings at temperatures close to liquid helium. Our results suggested that the liquid helium itself may be the source of our observed phenomenon.
Plesescu, F., Tajmar, M.
core   +1 more source

A monocular camera gyroscope [PDF]

open access: yesGyroscopy and Navigation, 2012
We present a method for tracking the 3-axis orientation of a monocular camera using orthogonal vanishing points detected in individual frames of a sequence of images. Robust and real-time vanishing point detection is done using a standard line segment detection method and an adaptive RANSAC algorithm.
Huttunen, Ville, Piche, Robert
openaire   +3 more sources

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

open access: yesAdvanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho   +3 more
wiley   +1 more source

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