April 2011

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April 2011 (Complete Issue PDF)

Feature Articles

Motors Technology Update
The latest in motors technology from leading manufacturers.

Exploring All Motor Options
Q&A with Harald Poesch, product marketing manager for servomotors at Siemens Drive Technologies.

The Expanding Role of Advanced Ceramics in the Aerospace Industry
How advanced ceramics are being used for instrumentation and control systems, seals and thermocouples, aero engine component repair and ion propulsion.

Technical Articles

Tuning a PID Controller
This paper introduces the basic fundamentals of proportional-integral-derivative (PID) control theory and the characteristics of each of the PID control loops.

Development of the Upgraded DC Brush Gearmotor for Spacebus Platforms
The obsolescence of materials and processes in the manufacture of traditional DC brush gearmotors has necessitated the development of an upgraded DC brush gearmotor.

Departments

Product News (Product News)
The complete Product News section from the April 2011 issue of Power Transmission Engineering.

IFPE Focuses on Return to Growth (Events)
CONEXPO/CON-AGG and IFPE 2011 attracted nearly 120,000 attendees.

Calendar (Events)
The technical calendar from the April 2011 issue of Power Transmission Engineering.

Industry News (Industry News)
The complete Industry News section from the April 2011 issue of Power Transmission Engineering.

When (Robotic) Animals Ruled the Earth... (Power Play)
Nowadays, you can find scientists and engineers creating micro-robotic creatures for a slew of fascinating research projects.