Motion Control

Understanding Robot Movements Through Kinematics

Many robotic and mechanical systems require the calculation of kinematic equations to express the relationship between variables that are to be controlled (motor/actuator position obtained via feedback sensors and manipulated by motors/actuators) and variables that are to be commanded, such as the position of a tool tip or objective.

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Linear Motors and Actuators Meets Automation Needs

Linear motors and actuators are now cost-competitive with ball screws and belt drives and offer distinctly superior agility and bandwidth for advanced positioning applications. New micromotors and actuators are helping to automate tasks not previously feasible. Direct linear drives are increasingly replacing servo-controlled pneumatic cylinders, contributing reliability and controllability, free from the cost, noise, and upkeep of air compressors.

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Motion Control Components Lend Hand to Biomedical Applications

The worlds of biomedical and motion control are joining at the hip, with motors, controllers, actuators, and other motion control components becoming key elements in advanced biomedical applications ranging from fluid dispensers to imaging tables to surgical simulation systems.

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Universal Joint Carries Power in Surgical Device

Belden Inc., a manufacturer of universal joints, has developed a miniaturized universal joint for a surgical tool developed by Tuebingen Scientific Medical GmbH for minimally invasive surgical applications. The surgical manual manipulator system required a joint to transmit the power from the handle to the connecting shaft.

Posted in: Applications, Application Briefs

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Linear Rails Bear Weight of New X-Ray Table Apps

Arcoma, one of the world’s leading providers of automatic x-ray equipment, faced the challenge of redesigning one its flagship products, the Arcoma mobile imaging table, because new applications had been developed for the top-selling mobile imaging table.

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Encoder Helps Track Molecular Level Movement

What good is a $100,000 ultra-precision inverted microscope if it can’t hold focus? That’s the problem facing researchers involved in an increasing number of genetic experiments.

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Protecting AC Motors From Destructive Shaft Currents

The use of variable-frequency drives (VFDs) to control AC motors has increased dramatically in recent years. In addition to low operating cost and high performance, they save energy. Today, the challenge facing system designers and engineers is to minimize damage to AC motors from shaft current.

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