During the qualification campaign of the NIRSpec (near-infrared spectrometer) instrument mechanism, the actuator could not achieve the expected lifetime that had been extended during the development phase. The initial design could not be adapted to the requested number of revolutions during that phase. Consequently the actuator needed to be modified so that the function of the mechanism would not be endangered or, by extension, the overall function of the NIRSpec instrument. The modification included a change of the overall actuator design—internal dimensions, tolerances, materials, lubrication and assembly process—while keeping the interface to the mechanism, mass and function.

Despite posting its slowest quarter since early 2007, AWEA remains optimistic that the wind industry can and will work successfully with the revolving doors in Washington.

Maxon upgrades tissue removal system for Interlace.

New generation sensors are improving our quality of life.

The complete Product News section from the December 2010 issue of Power Transmission Engineering

A look back at a turbine-powered fire engine that was years ahead of its time.

Motion systems bring award-winning and energy-optimizing “Smart House” to life.

Does the U.S. renewable energy solution lie offshore? An update on the status of offshore wind projects.

The latest offering by machine design experts J.R. Hendershot and T.J.E. Miller is an 822-page brushless permanent-magnet (PM) machine design book that serves as a worthy follow-up to their 1994 work.

Calendar of upcoming events from the August 2010 issue of Power Transmission Engineering.