Blog Archives

Why non-backdrivability is a problem for Force Control

Posted on Jan 29, 2023 by enrikds — Leave a comment

Minimising the stiction will improve the resolution of your force controlled application.

Tagged with: Actuators, Backdrivability, friction, motors, non backdrivable, non-backdrivable, relfected inertia, Robots, stiction
Posted in General, Mechanical Design

The most important elements of a robot

Posted on Sep 4, 2019 by enrikds — Leave a comment

A beginner roboticist should learn the basics of a few type of technologies and components before embarking himself in the design and construction of his own robot. I would say that the main areas one should be familiar with are:…

Tagged with: 3D printing, Actuators, controllers, electronics, gearboxes, manufacturing, motors, Robotics components, Sensors
Posted in General, Robotics

The most common places to shop for robotics components

Posted on Aug 31, 2019 by enrikds — Leave a comment

This time I would like to review the most used online shops to buy components for a robotic design. Some of them are more focused on the professional market and some others pay attention to the hobbyist. The two main…

Tagged with: Actuators, buying, cables, components, electronics, mechanical components, motors, purchasing, Robots, shopping, structural elements
Posted in Robotics

Magnetic Encoders VS Optical Encoders

Posted on Mar 14, 2018 by enrikds — 1 Comment

Encoders, whether rotary or linear, absolute or incremental, typically use one of two measuring principles—optical or magnetic. While optical encoders were, in the past, the primary choice for high resolution applications, improvements in magnetic encoder technology now allow them to…

Tagged with: Actuators, Angle Measurement, Feedback, Magnetic Encoders, motors, Optical, Position Measurement, Robots
Posted in Robotics, Sensors

Complementary Encoder Signals to mitigate the electrical noise

Posted on Mar 12, 2018 by enrikds — Leave a comment

Electrical noise is a common problem that occurs during the transmission of an incremental encoder’s signal to the receiving electronics, especially when the cable lengths are very long. Stray electromagnetic fields or currents induce unwanted voltages into the signal. These…

Tagged with: A, B, Complementary, Electrical noise, Encoders, Feedback, motors, Noise, Noisy, Position, Sensor
Posted in Actuators, Robotics, Sensors

Optical Encoders in Brushless Servo Motors

Posted on Mar 9, 2018 by enrikds — Leave a comment

The trend towards wide scale use of Brushless Motors is being driven by manufacturing cost reductions, improved efficiencies, greater reliability, availability of improved drive electronics, and the availability of improved sensors for motor control. The brushless motors, independently whether they…

Tagged with: Angle, BLDC, Brushless, Conmutation, Encoders, Hall Effect, Measurement, motors, PMSM, Position, Resolvers, Sensors, Speed, Windings
Posted in Actuators, Robotics

Free access during 50 days to my paper: On the control performance of motors driven by long cables for remote handling at ITER

Posted on May 1, 2016 by enrikds — Leave a comment

Thanks to the Elsevier guys I have a link to get free access to my recently published paper: on the control performance of motors driven by long cables for remote handling at ITER. It has been published in the journal:…

Tagged with: control, fusion, ITER, motors, Remote handling
Posted in Control for teleoperation, Robotics

Radiation tolerance of robotics & telerobotics systems

Posted on Apr 24, 2016 by enrikds — Leave a comment

In this post, a review of the main effects due to the radiation on telerobotics systems is performed in order to justify the approach I took during my research and clarify the issues found. Due to the radiation levels in most…