Results 21 to 30 of about 11,952,015 (299)

Fully differential electro-mechanical phase locked loop sensor circuit [PDF]

, 2013
Embedding a micro-machined sensing element in a closed loop, force feedback system is a technique commonly used to realise high performance MEMS (micro-electro-mechanical systems) sensors due to the advantages of better linearity, increased dynamic range
Wilcock, Reuben, Brown, Andrew D., Wilson, Peter R., Rudolf, Robert, Li, Ke, Harris, Nick   +5 more
core   +1 more source

A Multiposture Locomotor Training Device with Force-Field Control

Advances in Mechanical Engineering, 2014
This paper introduces a multiposture locomotor training device (MPLTD) with a closed-loop control scheme based on joint angle feedback, which is able to overcome various difficulties resulting from mechanical vibration and the weight of trainer to ...
Jianfeng Sui, Yali Liu, Runze Yang, Linhong Ji   +3 more
doaj   +1 more source

Fractional Modeling and Control of Lightweight 1 DOF Flexible Robots Robust to Sensor Disturbances and Payload Changes

Fractal and Fractional, 2023
Model design and motion control are considered the cornerstones of the robotic field that allow for achieving performance tasks. This article proposes a new dynamic modeling and control approach for very lightweight mechanical systems carrying payloads ...
Selma Benftima, Saddam Gharab, Vicente Feliu Batlle   +2 more
doaj   +1 more source

The strength and the self-cleaning function of composite resin high strength fiber space maintainer

口腔疾病防治, 2019
Objective To evaluate the mechanical properties and bacterial adhesion of the glass fiber-reinforced composite resin space maintainer.Methods The mechanical properties of the composite resin high-strength fiber （experimental group） and the band and loop ...
YIN Zhongping, ZHANG Ying, HE Miao, TANG Xiaolei, XU Yanhua   +4 more
doaj   +1 more source

Enhanced Decision Mechanism for RAN Subslicing in Management Closed Control Loop

2023 Eighth International Conference on Fog and Mobile Edge Computing (FMEC), 2023
5G radio access network (RAN) slicing enables better satisfaction of different quality of service (QoS) requirementsthan without network slicing. A handful of slice types are specified for various service verticals; however, the number andsize of those slices is unspecified. Subslicing refers to grouping slice users into smaller groups, subpartitioning
Kulmar, Marika, Müürsepp, Ivo, Ala, Muhammad Mahtab   +2 more
openaire   +1 more source

Control and navigation system for a fixed-wing unmanned aerial vehicle

AIP Advances, 2014
This paper presents a flight control and navigation system for a fixed-wing unmanned aerial vehicle (UAV) with low-cost micro-electro-mechanical system (MEMS) sensors. The system is designed under the inner loop and outer loop strategy.
Ruiyong Zhai, Zhaoying Zhou, Wendong Zhang, Shengbo Sang, Pengwei Li   +4 more
doaj   +1 more source

Dynamics of Mechanical Automatic Vertical Drilling System With a Novel Hydraulic Balanced Turbine

IEEE Access, 2021
The automatic vertical drilling system (VDS) adopts downhole closed-loop control, through ground monitoring, a large closed-loop control on the ground and downhole is formed to keep the wellbore in a vertical position.
Jin Wang, Qilong Xue, Baolin Liu, Fangtao Li, Yanbin Zang, Lin Chai   +5 more
doaj   +1 more source

Theoretical and Experimental Investigation on Characters of Mechanical Pumped Two Phase Cooling System

Zhileng xuebao, 2007
A brief review of two-phase cooling applications was presented.The differences between MPLHP(Mechanical Pumped Loop Heat Pipe) and LHP/CPL(Loop Heat Pipe /Capillary Pumped Loop)or Mechanical Pumped Single-phase Cooling Loop were discussed according to ...
Liu Jie, Pei nianqiang, Guo Kaihua, He Zhenhui, Li Tingxuen, Gu Jianming   +5 more
doaj   +2 more sources

Tracking control of mechanical systems with a unilateral position constraint inducing dissipative impacts [PDF]

, 2012
In this paper, the tracking control problem is considered for mechanical systems with unilateral constraints with dissipative impacts. In these systems, impacts are triggered at the exact moment when the constraint becomes active.
R.G. Sanfelice, Biemond, J.J.B., Heemels, W.P.M.H., Sanfelice, R.G., Biemond, JJB Benjamin, Nijmeijer, H., J.J.B. Biemond, van de Wouw, N, N. van de Wouw, Wouw, van de, N., Heemels, WPMH, Sanfelice, RG, Nijmeijer, H Henk, W.P.M.H. Heemels, Heemels, WPMH Maurice, Wouw, N Nathan van de, Nijmeijer, H, H. Nijmeijer, Biemond, JJB   +18 more
core   +1 more source

Analysis and Design of a 3rd Order Velocity-Controlled Closed-Loop for MEMS Vibratory Gyroscopes

Sensors, 2013
The time-average method currently available is limited to analyzing the specific performance of the automatic gain control-proportional and integral (AGC-PI) based velocity-controlled closed-loop in a micro-electro-mechanical systems (MEMS) vibratory ...
Ji-wei Jiao, Huan-ming Wu, Hai-gang Yang, Tao Yin   +3 more
doaj   +1 more source