Towards low cost electrical servo-motor design using backlash/friction compensative control law

2002 ◽  
Author(s):  
J.C. Cadiou ◽  
R. Merzouki
Keyword(s):  
Low Cost ◽  
Control Law ◽  
Servo Motor ◽  
Motor Design

Induction torque and servo-motor design

1956 ◽  
Vol 75 (1) ◽  
pp. 47-47
Author(s):  
Gerald Weiss
Keyword(s):  
Servo Motor ◽  
Motor Design

scholarly journals Accurate Motion Control of a Pneumatic Linear Peristaltic Actuator

Actuators ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 63 ◽  
Author(s):  
João Falcão Carneiro ◽  
João Bravo Pinto ◽  
Fernando Gomes de Almeida
Keyword(s):  
Closed Loop ◽  
Low Cost ◽  
Dynamic Performance ◽  
Control Law ◽  
Control Loop ◽  
Control Laws ◽  
Loop Control ◽  
Error Band ◽  
Short Service Life ◽  
High Mechanical Stress

Pneumatic linear peristaltic actuators can offer some potential advantages when compared with conventional ones. The low cost, virtually unlimited stroke and easy implementation of curved motion profiles are among those benefits. On the downside, these actuators suffer high mechanical stress that can lead to short service life and increased leakage among chambers during the actuator lifetime. One way to cope with this problem is to impose the force—instead of the displacement—between rollers, as this has been shown to improve the endurance of the hose while reducing leakage during the actuator lifetime. This paper presents closed control loop results using such a setup. Previous studies with linear peristaltic actuators have revealed that, although it is possible to reach zero steady state error to constant references with closed loop control, the dynamic response obtained is very slow. This paper is mainly focused on this topic, namely on the development of several control laws to improve the dynamic performance of the system while avoiding limit cycles. The new developed control law leads to an average time of 1.67 s to reach a 0.1 mm error band in an experiment consisting of a series of 16 steps ranging from 0.02 to 0.32 m in amplitude.

scholarly journals Desenvolvimento de um Protótipo Automatizado de Detecção e Focalização de Raios Solares com Hardware Livre

2020 ◽  
Author(s):  
Orlando Soares de Santana Filho ◽  
Carlos Henrique Mota Martins ◽  
Thiago Henrique Felix C. Ribeiro Conceição ◽  
Alex Vinicius dos Reis Freitas Silva ◽  
Adriano Honorato Braga ◽  
...  
Keyword(s):  
Solar Energy ◽  
Electromagnetic Radiation ◽  
Tracking System ◽  
Low Cost ◽  
Servo Motor ◽  
Solar Panels ◽  
Open Hardware ◽  
Solar Tracking ◽  
Arduino Uno ◽  
And Performance

Solar energy is a renewable and inexhaustible source, besidescausing damage to nature, being clean and sustainable.Transform the electromagnetic radiation emitted by the Sunelectrical energy are used solar panels. In order to improveefficiency and performance of this capture, a low-cost wasbuilt, a single-axis solar tracking system for photovoltaicpanels. The solution uses the automation Arduino UNO R3,open hardware, two photosensitive sensors LDR GL-5528, inaddition to a servo motor capable of moving the surface of aphotovoltaic plate according to the detection of the highestincidence of light. The circuit and its components wereprogrammed using the Arduino IDE software, version 1.8.11.As a result, it was possible to follow the movement of thesun, differing from a static panel, thus ensuring greater sunshineon the solar plate, as a result of this traceablecontrol prototype.

scholarly journals Design and simulation of bionic glove for rehabilitation of the paralytics

2018 ◽  
Vol 7 (2.8) ◽  
pp. 1
Author(s):  
Aparna B ◽  
Anithakrithi B ◽  
Naveena P ◽  
Yaswanth Kumar M ◽  
Avinash M ◽  
...  
Keyword(s):  
Recovery Rate ◽  
Low Cost ◽  
Hand Movement ◽  
Practical Implementation ◽  
Servo Motor ◽  
Robotic Technology ◽  
Input System ◽  
At Home

Repetitive therapy can improve dexterity and hand movement among the paralyzed and stroke affected patients. The assistance of simple robotic technology may enhance the recovery rate of such patients. The study aims at developing a low cost bionic glove rehabilitation device which aids in providing effective finger exercises for physiotherapy by the use of a potentiometer. The prototype is designed in the form of a wearable glove for easy use. It includes an ATMEGA-328 microcontroller that is programmed using Arduino software for controlling the device. The motion of the fingers during therapy is achieved using a metal gear servo motor while the linear potentiometer controls the angle. This device can be used in rehabilitation to provide repetitive therapy for fingers at home with limited supervision by the physiotherapist for the paralytics. The performance of the device is simulated and evaluated using the Proteus Intelligent Schematic Input System (ISIS) software. The results obtained from the simulation can be used to improve the features of the device for effective practical implementation.

Sign in / Sign up

Export Citation Format

Share Document