Results 11 to 20 of about 235,893 (331)

A Model of Gravity Vector Measurement Noise for Estimating Accelerometer Bias in Gravity Disturbance Compensation

open access: yesSensors, 2018
Compensation of gravity disturbance can improve the precision of inertial navigation, but the effect of compensation will decrease due to the accelerometer bias, and estimation of the accelerometer bias is a crucial issue in gravity disturbance ...
Junbo Tie   +5 more
doaj   +1 more source

A Novel Calibration Method for Gyro-Accelerometer Asynchronous Time in Foot-Mounted Pedestrian Navigation System

open access: yesSensors, 2021
Pedestrian Navigation System (PNS) is one of the research focuses of indoor positioning in GNSS-denied environments based on the MEMS Inertial Measurement Unit (MIMU). However, in the foot-mounted pedestrian navigation system with MIMU or mobile phone as
Tianyu Chen   +4 more
doaj   +1 more source

Development of Dual-Axis MEMS Accelerometers for Machine Tools Vibration Monitoring

open access: yesApplied Sciences, 2016
With the development of intelligent machine tools, monitoring the vibration by the accelerometer is an important issue. Accelerometers used for measuring vibration signals during milling processes require the characteristics of high sensitivity, high ...
Chih-Yung Huang, Jian-Hao Chen
doaj   +1 more source

Robust Optimization of a MEMS Accelerometer Considering Temperature Variations

open access: yesSensors, 2015
A robust optimization approach for a MEMS accelerometer to minimize the effects of temperature variations is presented. The mathematical model of the accelerometer is built.
Guangjun Liu   +3 more
doaj   +1 more source

Research on Decomposition of Offset in MEMS Capacitive Accelerometer

open access: yesMicromachines, 2021
In a MEMS capacitive accelerometer, there is an offset due to mechanical and electrical factors, and the offset would deteriorate the performance of the accelerometer. Reducing the offset from mechanism would benefit the improvement in performance.
Xianshan Dong   +6 more
doaj   +1 more source

A two degrees of freedom comb capacitive-type accelerometer with low cross-axis sensitivity

open access: yesJournal of Mechanical Engineering and Sciences, 2019
In this paper, we report on a SOI-based comb capacitive-type accelerometer that senses acceleration in two lateral directions. The structure of the accelerometer was designed using a proof mass connected by four folded-beam springs, which are compliant ...
M. N. Nguyen   +3 more
doaj   +1 more source

A microchip optomechanical accelerometer [PDF]

open access: yes, 2012
The monitoring of accelerations is essential for a variety of applications ranging from inertial navigation to consumer electronics. The basic operation principle of an accelerometer is to measure the displacement of a flexibly mounted test mass ...
Alexander G. Krause   +32 more
core   +3 more sources

Multi-axis Response of a Thermal Convection-based Accelerometer

open access: yesMicromachines, 2018
A thermal convection-based accelerometer was fabricated, and its characteristics were analyzed in this study. To understand the thermal convection of the accelerometer, the Grashof and Prandtl number equations were analyzed.
Jae Keon Kim   +4 more
doaj   +1 more source

Pre-Interaction Identification by Dynamic Grip Classification [PDF]

open access: yes, 2017
We present a novel authentication method to identify users as they pick up a mobile device. We use a combination of back-of-device capacitive sensing and accelerometer measurements to perform classification, and obtain increased performance compared to ...
Noor, Mohammad Faizuddin Mohd   +2 more
core   +1 more source

Elderly care monitoring system with IoT application [PDF]

open access: yes, 2020
Falls among elderly can pose serious consequences such as injury or even fatal ones. Therefore, it is essential that fall are detected early and away to that is by using IoT platform.
Abd Wahab, Mohd Helmy   +3 more
core   +1 more source

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