Design News - March 26, 1995

Variable-frequency drives (VFDs) entered the motor-control lexicon just a few years ago. Such drives use microprocessors to calculate and control the torque-producing component of total motor current.

• Design Applications
• Compact Engine Offers Quiet, Clean Power
• Constant-Torque Hinge Adds Life To Computer Display
• Quiet Motor-Pumps Improve Test-Lab Data
• Rugged, Reliable Detector Monitors Motion
• Splitter Puts Two Wells In One Wellhead
• Tiny Sensors Assist Medical and Robotic Research
• Piezo Actuator Resolves To 10-6 Meter

• Designer's Corner
• Designer's Corner

• Editorial
• Global Recovery: Boon to Engineering

• Engineering News
• Engineering News

• Feature
• Embedded PC's Reduce Design Risks
• Silicon Valley, meet 'Silicon Glen'
• A 6th sense for the factory floor
• Special Screen Preview: SIMULATED MACHINE TOOLS
• Fast Track Technology
• Role Model For Tech Transplants

• Guest Commentary
• A big market for micromotors

• Legal Forum
• Do you need a photocopy?

• Managing Design
• Embracing information age change

• Software lab
• TK Solver for Windows, v1.0

• Standards Update
• Standards Update

• Technology Bulletin
• Technology Bulletin