Real time simultaneous and proportional control of multiple degrees of freedom from surface EMG: Preliminary results on subjects with limb deficiency

2012 ◽  
Author(s):  
H. Rehbaum ◽  
Ning Jiang ◽  
L. Paredes ◽  
S. Amsuess ◽  
B. Graimann ◽  
...  
Keyword(s):  
Real Time ◽  
Degrees Of Freedom ◽  
Surface Emg ◽  
Proportional Control ◽  
Preliminary Results ◽  
Multiple Degrees Of Freedom ◽  
Limb Deficiency

Poster 47 A Single Surface EMG Interface to Control Multiple Degrees of Freedom in Stroke Survivors

PM&R ◽  
2015 ◽  
Vol 7 ◽  
pp. S107-S107
Author(s):  
Ethan Rand ◽  
Lyssa Sorkin ◽  
Lawrence G. Chang ◽  
Parth Patel ◽  
Hilary Armstrong ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Surface Emg ◽  
Stroke Survivors ◽  
Multiple Degrees Of Freedom

scholarly journals Proprioceptive Sonomyographic Control: A novel method of intuitive proportional control of multiple degrees of freedom for upper-extremity amputees

2018 ◽  
Author(s):  
Ananya S. Dhawan ◽  
Biswarup Mukherjee ◽  
Shriniwas Patwardhan ◽  
Nima Akhlaghi ◽  
Gyorgy Levay ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Degrees Of Freedom ◽  
Control Method ◽  
Control Strategies ◽  
Myoelectric Control ◽  
End Effector ◽  
Proportional Control ◽  
Multiple Degrees Of Freedom ◽  
Technological Advances ◽  
Novel Method

ABSTRACTTechnological advances in multi-articulated prosthetic hands have outpaced the methods available to amputees to intuitively control these devices. Amputees often cite difficulty of use as a key contributing factor for abandoning their prosthesis, creating a pressing need for improved control technology. A major challenge of traditional myoelectric control strategies using surface electromyography electrodes has been the difficulty in achieving intuitive and robust proportional control of multiple degrees of freedom. In this paper, we describe a new control method, proprioceptive sonomyographic control that overcomes several limitations of myoelectric control. In sonomyography, muscle mechanical deformation is sensed using ultrasound, as compared to electrical activation, and therefore the resulting control signals can directly control the position of the end effector. Compared to myoelectric control which controls the velocity of the end-effector device, sonomyographic control is more congruent with residual proprioception in the residual limb. We tested our approach with 5 upper-extremity amputees and able-bodied subjects using a virtual target achievement and holding task. Amputees and able-bodied participants demonstrated the ability to achieve positional control for 5 degrees of freedom with an hour of training. Our results demonstrate the potential of proprioceptive sonomyographic control for intuitive dexterous control of multiarticulated prostheses.

Real-time monitoring of adaptive lenses with high tuning range and multiple degrees of freedom

2020 ◽  
Vol 45 (2) ◽  
pp. 272
Author(s):  
Wenjie Wang ◽  
Katrin Philipp ◽  
Nektarios Koukourakis ◽  
Jürgen W. Czarske
Keyword(s):  
Real Time ◽  
Degrees Of Freedom ◽  
Tuning Range ◽  
Real Time Monitoring ◽  
Multiple Degrees Of Freedom

Based on a Microcontroller the Real-Time Control System Design of Manipulator of Multiple Degrees of Freedom

2014 ◽  
Vol 722 ◽  
pp. 213-216
Author(s):  
Rui Yong Duan ◽  
Ji Ling Yan
Keyword(s):  
Control System ◽  
Real Time ◽  
Degrees Of Freedom ◽  
Time Synchronization ◽  
Synchronization Control ◽  
Control System Design ◽  
Real Time Control ◽  
Multiple Degrees Of Freedom ◽  
Time Control ◽  
Wireless Transmitter

Manipulator of multiple degrees of freedom has been widely used in all kinds of rescue and exploring robots. This paper regard a kind of 6 DOF manipulator controller as the design object.The data acquisition for WDD35D4 sensors is carried by the C8051F020 microcontroller and sent through a wireless transmitter NRF905 after encrypted.Then the wireless transmitter NRF905 of the manipulator receives decryption. Through data processing and the steering gear adjustment, the angle of linear potentiometer corresponds to the angle of steering by 1-1. Then it drives the manipulator to work out and simulate the same motion of mechanical arm controller, and make real-time synchronization control.

scholarly journals Design, Fabrication, and Testing of a Novel 3D 3-Fingered Electrothermal Microgripper with Multiple Degrees of Freedom

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 444
Author(s):  
Guoning Si ◽  
Liangying Sun ◽  
Zhuo Zhang ◽  
Xuping Zhang
Keyword(s):  
Degrees Of Freedom ◽  
Dynamic Properties ◽  
Three Dimensional ◽  
Polyimide Film ◽  
Zebrafish Embryos ◽  
Multiple Degrees Of Freedom ◽  
Electrothermal Actuator ◽  
3D Space ◽  
Pick And Place

This paper presents the design, fabrication, and testing of a novel three-dimensional (3D) three-fingered electrothermal microgripper with multiple degrees of freedom (multi DOFs). Each finger of the microgripper is composed of a V-shaped electrothermal actuator providing one DOF, and a 3D U-shaped electrothermal actuator offering two DOFs in the plane perpendicular to the movement of the V-shaped actuator. As a result, each finger possesses 3D mobilities with three DOFs. Each beam of the actuators is heated externally with the polyimide film. The durability of the polyimide film is tested under different voltages. The static and dynamic properties of the finger are also tested. Experiments show that not only can the microgripper pick and place microobjects, such as micro balls and even highly deformable zebrafish embryos, but can also rotate them in 3D space.

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