Features

Brooke Thornton, Mission Operations Manager, NASA’s Langley Research Center, Hampton, VA

On February 19, The Stratospheric Aerosol and Gas Experiment (SAGE) III instrument launched aboard a cargo capsule to the International Space Station. SAGE III — equipped with a telescope, grating spectrometer, and charge coupled device detector array — will use the light from the Sun and Moon to provide a profile of the atmosphere, including the Earth’s ozone layer. The technology will launch aboard the Falcon Dragon 9, a rocket developed by the Hawthorne, CA-based SpaceX.

Posted in: Who's Who, Aerospace
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Product of the Month: April 2017

Astronics Test Systems, Irvine, CA, has introduced the PXIe-1802 arbitrary waveform generator and the PXIe-1803 digitizer that provide test capabilities and measurement accuracy in a compact PXI form factor for aerospace, defense, communications, and other high-reliability applications. The arbitrary waveform generator offers both speed and performance for output frequencies of up to 125 MHz. With built-in waveforms, high signal quality, and high density and modularity, the instrument delivers dual 14/16-bit waveform generator channels, bandwidths of 90-140 MHz, synchronization, and 250 μV measurement accuracy. The 130/180 MS/s dual-channel digitizer provides speed and performance for input frequencies up to 175 MHz. The dual-channel 14/16-bit digitizer is configurable as separate or fully synchronized channels. Other features include waveform bandwidths of 65-175 MHz (typical), 64M of waveform memory per channel, and relative accuracy of up to 0.006%.

For Free Info Click Here

Posted in: Products, Measuring Instruments, Monitoring, Test & Measurement
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Products of Tomorrow: April 2017

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.

Posted in: Articles, Products, Manufacturing & Prototyping
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Today's Automobile: Supercomputer on Wheels

With every passing year, it's getting more difficult to recognize the current crop of passenger vehicles as the descendants of Henry Ford's Model T. Those first mass-produced vehicles didn't even include a battery or starting system, relying instead on a hand-cranked engine with a magneto to provide ignition. As recently as 20 years ago, many cars were still essentially mechanical systems supplemented by hydraulic or electrical systems for handling functions like steering, ignition, lights, and audio entertainment.

Posted in: Articles, Automotive, Infotainment systems, Product development, Technical review, Autonomous vehicles
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Vibration Tables Shake Up Aerospace and Car Testing

Shaker tables developed for satellite testing will protect Webb telescope during launch.

Spinoff is NASA's annual publication featuring successfully commercialized NASA technology. This commercialization has contributed to the development of products and services in the fields of health and medicine, consumer goods, transportation, public safety, computer technology, and environmental resources.

Posted in: Articles, Aerospace, Automotive, Vibration, Performance tests, Test equipment and instrumentation
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Scanning Performance of Air Bearing Equipped Precision Motion Systems

Scanning is a common technique in applications ranging from high-resolution microscopy to industrial material processing. Scanning involves moving either a workpiece or an optic at a constant velocity while a reading or writing operation takes place. Air bearings are used for both purposes, especially when high precision and reliability are vital. While the physical act of writing an image or capturing an image differ by application and industry, all such applications share a common requirement — maintaining a constant velocity.

Posted in: Articles, Motion Control, Imaging and visualization, Automation, Bearings, Reliability
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Four Ways to improve Production by Understanding the Physics of Servos

There is always a need to increase production in automation applications. Sometimes achieving improvements requires breaking the process down to its fundamental basics. The science behind the technology of servo-based motion control systems should be considered when attempting to eliminate inefficiencies. Four fundamentals to examine are inertia, resonance, vibration suppression, and regeneration.

Posted in: Articles, Motion Control, Finite element analysis, Electronic control systems, Automation, Productivity
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Converting from Hydraulic Cylinders to Electric Actuators

Hydraulics are rugged and deliver a low cost per unit of force, but electric rod actuators have attained higher force capacities while becoming more flexible, precise, and reliable.

Advances in motion control technology have prompted a new debate — do hydraulic cylinders or electric linear actuators offer the best solution for a linear motion application? Hydraulic cylinders provide high force at an affordable cost. Hydraulics are rugged, relatively simple to deploy, and deliver a low cost per unit of force. However, electric rod actuators (electric cylinders), particularly those with roller screws, have attained increasingly higher force capacities while becoming more flexible, precise, and reliable.

Posted in: Articles, Motion Control, Electrical systems, Flight control actuators, Hydraulic control, Reliability
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Low-Outgassing Labels Identify Instruments on the International Space Station

CILS 8900OG low-outgassing printable labels Computer Imprintable Label Systems (CILS)Burlington, MA877-512-8763www.cils-international.com
Posted in: Application Briefs, Instrumentation, Identification, Test equipment and instrumentation, Spacecraft
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Cooling Solution Helps NASA Get Closer to Mars

Cold conditioning systemAggrekoHouston, TX281-985-8200www.aggreko.com
Posted in: Application Briefs, Motion Control, Research and development, Cooling, Spacecraft
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