Articles

Dryden Flight Research Center

The Dryden Flight Research Center at Edwards Air Force Base, CA, is NASA’s primary center for atmospheric flight research and operations. Dryden plays a vital role in advancing technology and science through flight, conducting flight research and technology integration, as well as validating space exploration concepts and airborne remote sensing and science observations.

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Electronic Flow Control Valve (EFCV) with Pressure Compensation Capability

Flow control is one of the most critical functions in the hydraulic industry. Traditionally, flow control is implemented via a proportional or servo valve. When current is applied into the coil of a solenoid (proportional valve) or a torque motor (servo valve), a corresponding electromagnetic force is generated. These forces could either directly stroke the spool (single-stage configuration) or indirectly move the main stage spool via regulating the hydraulic pressures on each end of the main stage spool (multiple-stage configuration).

Posted in: Articles, Motion Control

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Download the Sounds of NASA

Some of the most historic and interesting sound bites from NASA space missions are now available for download as ringtones on your phone, or on your computer for alarms and notifications. You can hear the roar of a space shuttle launch or Neil Armstrong's "One small step for (a) man, one giant leap for mankind," every time you get a phone call. A new NASA Web page has more than 35 different sounds, including “Houston, we've had a problem," and segments from President Kennedy’s historic Moon speech. The NASA sounds are available in both MP3 and M4R (iPhone) files. NASA will update the collection as new sounds become available. To listen to and download the sounds, click here.

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NASA Announces New Launch System

Today, NASA announced the new Space Launch System (SLS), an advanced heavy-lift launch vehicle that will provide an entirely new national capability for human exploration beyond Earth's orbit.

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Inverter Testing and Certification for Global Markets

Inverters/converters are a key element of most renewable energy systems where the power generated is not suitable to either be used locally or to provide power directly to the electric utility. Many renewable sources such as photovoltaics generate DC power, while some renewable sources such as wind turbine systems generate AC, but not at the same voltage and/or frequency required by the utility.

Posted in: Features, GDM, Articles, Energy, Energy Efficiency, Renewable Energy, Solar Power, Wind Power, Green Design & Manufacturing, Smart Grid

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Vibration Isolation in Optical Test Systems

In the world of precision motion control there is a continuous pursuit of higher performance, whether it’s resolution, speed, stability, accuracy or step size. Even if a specified device appears on paper to be capable of achieving excellent results, the design of the mechanics and the platform stability play an integral role in achieving peak performance.

Posted in: Articles, Features, ptb catchall, Photonics

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Innovation in Smart Robotics

After turning the dial to heavy-duty and pushing the start button, Modi waits for the click that indicates that the interlock mechanism successfully locked the door of the washing machine. Shortly after, the water starts to flow and the machine indicates that the soak and scour phase is in progress. Now it’s time for Modi to move on to the next washing machine. 

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