Motion Control

Controlling Robotics Precisely With Haptic Technology

Robots are capable of very precise motion, but must be guided with precision in order to fulfill their potential. Consider the task of guiding a robotic surgeon’s arm to suture a wound or insert a catheter. A human surgeon, with all his or her knowledge and experience, is required to practice where to probe, cut, or sew before he or she can develop the necessary skills to make a clean suture with the right degree of tension at the right depth or an incision of the right depth. In contrast, a robotic surgeon’s arm can move more consistently and accurately than that of the best human surgeon.

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Advances in Magnetic Bearings

In this age of environmental consciousness, OEMs around the world are competing to build better, safer, and greener machines. In striving toward such lofty goals, many industries are rediscovering a fundamental principle — magnetics. Magnetic bearings improve reliability, reduce friction, minimize vibration, and offer advanced health monitoring and diagnostics — all without the disadvantages of lubricants.

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Reducing Electromagnetic Interference in Motion Systems

EMI (Electromagnetic Interference) comes in different forms, frequencies, and levels. Electronic equipment has different categories for both emissions and susceptibility. Under normal circumstances, elimination is not possible so reduction to acceptable levels is what can be reasonably achieved. Coupling factors, rise time, emissions, and susceptibility are phrases that must be understood with confidence.

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Controlling Devices Using the Ear as an Output Source

This method creates a hands-free way of controlling devices such as medical equipment, wheelchairs, computers, and cell phones.Current methods of device control include joysticks, which involve using one or both hands, external microphones that are cumbersome and pick up ambient noise, and external arrays that are also cumbersome and can restrict a user’s movement. Additionally, the external microphone and array options do not provide a high level of accuracy in certain situations.

Posted in: Bio-Medical, Briefs, Briefs

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Benefits of Magnetostrictive Sensors for Industrial Applications

Modern industrial machines rely on fast, accurate motion control in order to achieve high product quality and productivity, as measurement errors can lead to increased scrap and production downtime. However, these and other costly headaches can be avoided by choosing the proper position-sensing device for your application.

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Roller Pinion Technology Allows High Positional Accuracy for Precision Applications

Increasingly competitive markets make efficient and accurate processes more critical than ever before. To meet the demands of manufacturers, machine builders are constantly searching for new methods to design faster, more precise, and longer-lasting systems that will facilitate increased productivity.

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All Motors are Stepping Motors

In 1938, General Electric began producing a two-phase synchronous induction motor which, at 60 Hz, ran at 75 RPM. The low speed resulted from using a different number of rotors to stator poles or teeth, which made the motor a good bi-directional control motor. This motor was used by Superior Electric Company of Bristol, CT, to run power driven autotransformers used to dim lights in auditoriums and similar applications. General Electric ceased producing this motor in the mid 1950’s due to slow sales.

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