Industrial Robots: Encoders for Tool Center Point Accuracy

The use of secondary encoders on all of a robot's axes, as well as the use of linear encoders for positioning the robot relative to the workpiece, enables a level of accuracy at the tool center point

Encoder Selection: Speed Control

A general in depth analysis shows that the highest encoder resolutions are required for very precise speed control. The encoder resolution increases with the square of the demanded speed accuracy.

Tru-Tracâ„¢ Keeps Frankenstein Alive

This machine was assembled from various parts from other machines, so "Frankenstein" was really the only logical name for it.

What IS an Encoder?

Encoders use different types of technologies to create a signal, including: mechanical, magnetic, resistive and optical - optical being the most common.

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ST Robotics Develops the Workspace Sentry for Collaborative Robotics

ST Robotics Develops the Workspace Sentry for Collaborative Robotics

The ST Robotics Workspace Sentry robot and area safety system are based on a small module that sends an infrared beam across the workspace. If the user puts his hand (or any other object) in the workspace, the robot stops using programmable emergency deceleration. Each module has three beams at different angles and the distance a beam reaches is adjustable. Two or more modules can be daisy chained to watch a wider area. "A robot that is tuned to stop on impact may not be safe. Robots where the trip torque can be set at low thresholds are too slow for any practical industrial application. The best system is where the work area has proximity detectors so the robot stops before impact and that is the approach ST Robotics has taken," states President and CEO of ST Robotics David Sands.