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Editor's Choice: May 2015 - NASA Tech Briefs

A MEMS micro-translation stage features large linear travel capability, and can translate across long distances using just three-phase power. Essentially a linear motor built from a silicon base using microfabrication techniques, the device can be as small as 100 mm and can house lenses, mirrors, absorbers, and sampling compartments for applications in optics, communications, sensors, and biotechnology. Find out more here.

Posted in: UpFront

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Dr. David W. Miller, Chief Technologist, NASA Headquarters, Washington, DC

     Dr. David Miller began his term as the NASA chief technologist on March 17, 2014. He currently serves as the agency’s principal advisor and advocate on NASA technology policy and programs. Miller, a professor at the Massachusetts Institute of Technology, has also previously worked with a range of NASA programs including the space shuttle, the International Space Station, the JWST Product Integrity Team, and the NASA CubeSat Launch Initiative.

Posted in: Who's Who

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Reducing Power-On/Off Glitches in Precision DACs: Part 2

Part 1 of this article introduced a phenomenon called power-on/off glitch. The example discussed the impact of this phenomenon on a motor control system. We limited our analysis to a DAC where the output buffer is powered on in normal mode: zero-scale or mid-scale. In Part 2, we analyze when the DAC output is powered on in high-impedance mode. We present a mathematical model for the power-on glitch, followed by board-level solutions to minimize it.

Posted in: Articles

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Autonomous Robots Keep Warehouse Running Green

YLOG, a startup company in Austria, uses an intelligent and very environmentally friendly logistics system that is winning an increasing number of customers. The technology makes use of individual, freely moving Autonomous Intelligent Vehicles (AiVs) that detect each other, observe right-of-way rules, recognize one-way routes, and complete their tasks fully autonomously without intervention from or coordination by a central computer.

Posted in: Application Briefs, Articles, Motors & Drives, Machinery & Automation, Robotics

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Products of Tomorrow: April 2015

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft safety, increased accuracy in weather forecasting, and the miniature cameras in our cellphones are just some of the examples of NASA-developed technology used in products today. This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. If you are interested in licensing the technologies described here, use the contact information provided. To learn about more available technologies, visit the NASA Technology Transfer Portal at http://technology.nasa.gov.

Posted in: Articles, Products, Consumer Product Manufacturing, Joining & Assembly, Optical Components, Optics

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Reducing Interconnection Weight in Autosports

In Formula 1 and other autosports, weight reduction is critical to competitive advantage. A few grams saved here and a few more saved there can add up to significant savings. There is also a move toward high-density packaging of electronics parts. As the electronics content of cars increases, the natural drive is to miniaturize the package to gain maximum efficiency in the use of space.

Posted in: Articles, Electronic Components, Electronics, Composites, Fiber Optics

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SAE 2015 World Congress Preview

Leading Mobility Innovation The SAE World Congress, presented by SAE International, assembles the best talent in the automotive industry. Experts, management teams, engineers, and executives gather to collaborate and address current challenges, and seek new opportunities for discovery and exploration. The theme of the 2015 World Congress — held in Detroit from April 21-23 — is Leading Mobility Innovation, and challenges engineers to create mobility for the future through innovative technologies.

Posted in: Articles, Automotive

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