Results 21 to 30 of about 84,860 (194)

Denoising MEMS accelerometer sensors based on L2‐norm total variation algorithm

Electronics Letters, 2017
A method for denoising accelerometer data based on the L2‐norm total variation (LTV) algorithm is presented. In order to collect accelerometer data, a wireless accelerometer sensor was developed that is directly connected to a central node. By benefiting
R. Abbasi‐Kesbi, A. Nikfarjam
doaj   +1 more source

Data Quality Assessment of Gravity Recovery and Climate Experiment Follow-On Accelerometer

Sensors
Accelerometers are mainly used to measure the non-conservative forces at the center of mass of gravity satellites and are the core payloads of gravity satellites.
Zongpeng Pan, Yun Xiao
doaj   +1 more source

An accelerometer-based navigation system provides acetabular cup orientation accuracy comparable to that of computed tomography-based navigation during total hip arthroplasty in the supine position

Journal of Orthopaedic Surgery and Research, 2020
Background Inadequate acetabular component orientation is associated with postoperative impingement, dislocation, and accelerated polyethylene wear. Computed tomography (CT)-based navigation systems provide accuracy for total hip arthroplasty (THA) but ...
Tomonori Tetsunaga, Kazuki Yamada, Tomoko Tetsunaga, Tomoaki Sanki, Yoshi Kawamura, Toshifumi Ozaki   +5 more
doaj   +1 more source

Using open source accelerometer analysis to assess physical activity and sedentary behaviour in overweight and obese adults

BMC Public Health, 2018
Background Physical activity and sedentary behaviour are difficult to assess in overweight and obese adults. However, the use of open-source, raw accelerometer data analysis could overcome this.
Paul Innerd, Rory Harrison, Morc Coulson
doaj   +1 more source

Study protocol of the self‐monitoring activity program: Effects of activity on incident dementia

Alzheimer’s & Dementia: Translational Research & Clinical Interventions, 2019
Introduction Numerous studies have focused on nonpharmacological interventions on cognitive function and the effects of cognitive function on daily living.
Hiroyuki Shimada, Sangyoon Lee, Takehiko Doi, Seongryu Bae, Keitaro Makino, Ippei Chiba, Hidenori Arai   +6 more
doaj   +1 more source

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

Sensors, 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, Xingjun Wang, Bo Dai, Xiaojun Liu   +3 more
doaj   +1 more source

Resonance Effect Decrease and Accuracy Increase of Piezoelectric Accelerometer Measurement by Appropriate Choice of Frequency Range

Shock and Vibration, 2018
A suitable piezoelectric accelerometer mathematical model is proposed to extract a relationship of motion relative frequency as a function of natural frequency.
Zine Ghemari, Saad Salah, Rabah Bourenane   +2 more
doaj   +1 more source

A Method for Gravitational Apparent Acceleration Identification and Accelerometer Bias Estimation

IEEE Access, 2019
Accelerometer bias in an inertial navigation system (INS) is the key factor determining the navigation accuracy. Two methods, named separated calibration and system calibration are always used for acceleration bias calibration.
Xixiang Liu, Songbing Wang, Xiaole Guo, Wenqiang Yang, Guangfu Xu   +4 more
doaj   +1 more source

Pengembangan Mekanisme Change Detection Untuk Efisiensi Energi Pada Wifi-Based Indoor Positioning System

Jurnal ELTIKOM: Jurnal Teknik Elektro, Teknologi Informasi dan Komputer, 2020
Pengembangan mekanisme change detection mempunyai peranan penting terhadap Indoor Positioning System (IPS). Namun permasalahan yang masih umum dijumpai adalah konsumsi energi yang tinggi, karena proses WiFi scanning berjalan secara terus menerus.
Ade Hendi, Waskitho Wibisono, Ary Mazaharudin Shiddiqi   +2 more
doaj   +1 more source

High Temperature Endurable Fiber Optic Accelerometer

Shock and Vibration, 2014
This paper presents a low frequency fiber optic accelerometer for application in high temperature environments of civil engineering structures. The reflection-based extrinsic fiber optic accelerometer developed in this study consists of a transmissive ...
Yeon-Gwan Lee, Jin-Hyuk Kim, Chun-Gon Kim   +2 more
doaj   +1 more source