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  • Closed-Loop Pneumatic Control In A Compact Package
    when subject to external force. The product is said to produce the same accuracy as more-expensive electrical servomechanisms and temperamental electro-mechanical ball-screw actuators. The system accurately stops and holds the rod in any position and is designed to control both linear and rotary
  • Motion Control: Rigid vs. Flexible
    and rotary actuators, and pneumatic cylinders. Let's call that option "rigid automation." Alternatively, they could simply buy a robot. We'll call that option "flexible automation."
  • Motion Reference Guide: Software Keeps Linear-Stage Integration Straight
    , and discrete components, and both rotary or linear-motor types. Machine builders can now employ a single common-control platform that can deploy the software developed for one application across a variety of controllers within the platform family. These desktop applications do not develop overnight
  • Unchained innovation
    bike featured an accumulator that stored energy for uphill climbs. The Purdue row-bike team used a hydraulic cylinder as a linear pump, an improvement in efficiency over rotary hydraulic pumps, and estimated that rowing motion generated about 200 W of power compared with 90 W from pedaling a bike
  • Linear actuators get a servo look
    in direct-drive configurations for many years. A more-recent development in this area is that of direct-drive linear servoactuators. They produce linear motion directly rather than convert rotary motion to a linear displacement. As is the case with rotary servomotors, the shedding of ball-screw
  • How to Streamline Air Circuits
    linear or rotary speeds of 4 m/sec (13 ft/sec) with forces up to 20 kN (4,500 lb). Linear actuators can come in stroke lengths as large as 10 m (33 ft) and, when coupled with a closed-loop system with a servocontroller and proportional valve, they can provide multiple speed, force, and positioning
  • Straighten up and go linear
    accuracy and stiffness limitations. That leaves rotary-to-linear conversion as the preferred means for most linear applications. There are several ways to convert rotary motion to linear travel. Belts and pulleys provide fairly inexpensive linear motion when coupled with a rotary motor. However, belt
  • Cylinders
    Actuators convert fluid energy into useful work. Fluid-power actuators are available in a number of forms to provide specific types of action. Cylinders work through linear extension; motors impart continuous rotary motion to objects; rotary actuators twist an object through only a partial arc

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