Machine Design

Absolute position feedback for actuators

Available for use with the company's BC3 pneumatic and B3S electric Series actuators, Absolute Position Feedback (APF) provides analog feedback to the controller or PLC to determine actual load ...
Mena FN

Thomson Adds Advanced Synchronisation Control To Electrak HD Linear Actuators

Thomson Industries , a manufacturer of linear motion control solutions, has introduced an“enhanced synchronisation” option for its Electrak HD smart electric linear actuator. The new iteration of this ...
EDN

Using Rotary Position Sensors for Accurate, Long-Term Measurement in Electronic Linear Actuators

This paper will discuss a variety of rotary position feedback sensors including digital, contacting analog, and non-contacting analog, and may act as a high- level guide to selecting the right sensor ...
Machine Design

2,300+ Actuators to Position Almost 200 Tons of Mirrors for Telescope

Engineers working on the prosaically named Extremely Large Telescope (ELT) in the Chilean Atacama Desert were faced with several daunting challenges. One of them was to devise a positioning subsystem ...
Electronic Design

Positioning a Linear Servo Motor with a PID Controller

The ABCs of PID control. Considerations for interfacing elements in the electrical circuit to accomplish those parts of the PID function for position control. Firmware code implementation.
Power Engineering

Valves & Actuators

A single power plant uses hundreds of valves to control almost every aspect of its operation. Valves, in conjunction with a controlling actuator, are used for pollution control, feed water, cooling ...