Results 1 to 10 of about 161,184 (203)

A New Z-axis Resonant Micro-Accelerometer Based on Electrostatic Stiffness

open access: yesSensors, 2015
Presented in the paper is the design, the simulation, the fabrication and the experiment of a new z-axis resonant accelerometer based on the electrostatic stiffness. The new z-axis resonant micro-accelerometer, which consists of a torsional accelerometer
Bo Yang, Wang Xingjun
exaly   +3 more sources

Increase of Three-Axis Accelerometer Sensitivity Using Capacitor in Spring [PDF]

open access: yesAUT Journal of Electrical Engineering, 2022
This study has introduced a three-axis capacitive accelerometer, in which the part of the capacitor that calculates acceleration is installed in the z direction in the spring to improve the sensitivity in the said direction.
kamran Delfan Hemmati   +1 more
doaj   +1 more source

AccEar: Accelerometer Acoustic Eavesdropping with Unconstrained Vocabulary [PDF]

open access: yesIEEE Symposium on Security and Privacy, 2022
With the increasing popularity of voice-based applications, acoustic eavesdropping has become a serious threat to users’ privacy. While on smartphones the access to microphones needs an explicit user permission, acoustic eavesdropping attacks can rely on
Pengfei Hu   +6 more
semanticscholar   +1 more source

Structural Design and Optimization of a Resonant Micro-Accelerometer Based on Electrostatic Stiffness by an Improved Differential Evolution Algorithm

open access: yesMicromachines, 2021
This study designed an in-plane resonant micro-accelerometer based on electrostatic stiffness. The accelerometer adopts a one-piece proof mass structure; two double-folded beam resonators are symmetrically distributed inside the proof mass, and only one ...
Libin Huang   +5 more
doaj   +1 more source

An aerosol deposition based MEMS piezoelectric accelerometer for low noise measurement

open access: yesMicrosystems & Nanoengineering, 2023
Potentially applied in low-noise applications such as structural health monitoring (SHM), a 1-axis piezoelectric MEMS accelerometer based on aerosol deposition is designed, fabricated, simulated, and measured in this study.
Xuewen Gong   +4 more
semanticscholar   +1 more source

Analysis of Accelerometer and GPS Data for Cattle Behaviour Identification and Anomalous Events Detection

open access: yesEntropy, 2022
In this paper, a method to classify behavioural patterns of cattle on farms is presented. Animals were equipped with low-cost 3-D accelerometers and GPS sensors, embedded in a commercial device attached to the neck.
Javier Cabezas   +6 more
semanticscholar   +1 more source

The impact of selected methodological factors on data collection outcomes in observational studies of device-measured physical behaviour in adults: A systematic review

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2023
Background Accelerometer measures of physical behaviours (physical activity, sedentary behaviour and sleep) in observational studies offer detailed insight into associations with health and disease.
Richard M. Pulsford   +18 more
doaj   +1 more source

A Novel Two-Axis Differential Resonant Accelerometer Based on Graphene with Transmission Beams

open access: yesSensors, 2022
In this paper, a novel two-axis differential resonant accelerometer based on graphene with transmission beams is presented. This accelerometer can not only reduce the cross sensitivity, but also overcome the influence of gravity, realizing fast and ...
Yang Xiao   +4 more
doaj   +1 more source

Enhancing the Shock Response Performance of Micromachined Silicon Resonant Accelerometers by Electrostatic Active Damping Control

open access: yesMicromachines, 2021
This paper presents a micromachined silicon resonant accelerometer based on electrostatic active damping control, which can improve the shock response performance of the accelerometer.
Libin Huang   +5 more
doaj   +1 more source

Accelerometers in Our Pocket: Does Smartphone Accelerometer Technology Provide Accurate Data?

open access: yesItalian National Conference on Sensors, 2022
This study evaluates accelerometer performance of three new state of the art smartphones and focuses on accuracy. The motivating research question was whether accelerator accuracy obtained with these off-the-shelf modern smartphone accelerometers was or ...
G. Grouios   +4 more
semanticscholar   +1 more source

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