As the holidays fade and the New Year unfolds, it’s back to business for most of us. For NASA Tech Briefs, that includes a bunch of trade shows and conferences our editors will attend over the next few months.

One show I plan to attend is the Pacific Design & Manufacturing Show, taking place at the Anaheim Convention Center in Anaheim, Calif., from February 9 through 11. The show will feature the latest design and manufacturing solutions from hundreds of companies. The diverse array of products and services include adhesives, CAD/CAM/CAE software and services, electrical and electronic components, fluid handling media and controls, instruments and controls, materials, mechanical components, motors and motion controls, testing and inspection products and services, and valves, switches, and controls.

No less than seven other shows are co-located with the Pacific Design & Manufacturing Show. Three of the more significant shows are the Medical Design & Manufacturing Show West, Electronics West, and Green Manufacturing Expo. The Medical Design & Manufacturing Show West and Green Manufacturing Expo represent the burgeoning fields of medical technology and “green” technology – sectors that held their own during the economic downturn and are increasingly important to design engineers.

In coming weeks, I hope to get more details on some of the products and technologies being shown. If your company plans to exhibit, drop me a line and let me know what you’ll be showing. Hopefully, we can meet during the show to discuss what’s new and exciting.

Eaton Corporation (Irvine, CA) partnered with Embraer (Brazil) in the development of a “fly-by-wire” wing flap actuator system, developed specifically for the new Embraer Phenom 100 Very Light Jet (VLJ). Fuselage construction began in March.

Traditional mechanical flap systems feature flexible metal shafts connected between each of the flap or slat actuators mounted in the aircraft wing, all driven by a central power drive unit. The Embraer system utilizes a brushless DC motor integrated directly within each actuator assembly. System synchronization is accomplished electronically, replacing the flex shafts with electrical wiring.
For more information, click here.

Developed at NASAÂ’s Marshall Space Flight Center (Huntsville, AL), a micro-commanding rotational-position-control system offers the advantage of less mechanical complexity, susceptibility to mechanical resonances, power demand, bulk, weight, and lower cost, relative to prior rotational-position-control systems based on stepping motors and gear drives. This system includes a digital-signal-processor (DSP)-based electronic controller, plus a shaft-angle resolver and a servomotor mounted on the same shaft.

Heretofore, micro-stepping has usually been associated with stepping motors, but in this system, the servomotor is micro-commanded in response to rotational-position feedback from the shaft-angle resolver.
For more information, see page 32 of the March issue of NASA Tech Briefs, or click here.

Medical scientists at Johns Hopkins University (Baltimore, MD) have constructed the “PneuStep,” a prototype pneumatic step motor that is the first of its kind. The motor was developed as part of a project for a robot that could operate precisely within the closed bore of high-intensity MRI equipment. The pneumatic nature of the step motor was seen as ideal in the magnetic environment of an MRI machine. The motor is constructed of dielectric and nonmagnetic material, using air formotion and light for fiber optic encoding. A robot actualized by PneuStep motors has been completed and is currently under evaluation.
The PneuStep is designed so that the end-to-end motion of the piston with its cylinder is always exact. The step motor is designed to collect small end-to-end motion strokes in rotary motion. An end-of-stroke motion makes a step. The PneuStep prototype has been constructed in two sizes.
For more information, visit at: http://link.abpi.net/l.php?20070321A3