Features

NASA Awards 2008 Software of the Year

NASA’s Glenn Research Center (Cleveland, OH) and Boeing employees have won the 2008 NASA Software of the Year Award for the development of a general-purpose program used to perform trajectory optimization and performance studies for a wide variety of vehicles including aircraft, rockets, satellites, and interplanetary vehicles. The Software of the Year Award recognizes developers of exceptional software created for or by NASA and owned by NASA.

Posted in: Articles, Software, Trajectory control, Optimization, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Fixed-wing aircraft, Rotary-wing aircraft, Spacecraft
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Industrial PCs Offer Configurable System Options and Quad-Core Performance

Industrial PCs (IPCs) are all about performance, including processors, mass storage performance, and network throughput. In all applications — medical, communications, automation, process control, transportation, military and defense, and more — bandwidth requirements for data transmission and processing are on the rise. Long-term use, low-level noise tolerance, ruggedness for shock and vibration, extended availability of additional systems — these are just some of the top-level requirements that must be considered in pairing the right industrial solution to the right application.

Posted in: Articles, Electronics & Computers, Computer software / hardware, Computer software and hardware, Data exchange, Computer software / hardware, Computer software and hardware, Data exchange, Data management, Reliability, Reliability, Industrial vehicles and equipment
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Choosing the Right Camera for Thermography Projects

Infrared (IR) thermography is an indispensable tool for studying dynamic thermal phenomena. This type of imaging is accomplished with an IR camera (Figure 1) that converts infrared radiation into a visual image depicting temperature variations across an object or scene. In addition, a good IR camera makes accurate (±1°C to ±2°C) non-contact measurements of the object’s temperatures.

Posted in: Articles, Cameras, Imaging, Imaging and visualization, Imaging, Imaging and visualization, Thermodynamics, Thermodynamics, Thermal testing
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Comparing Emissivity Evaluation Methods for Infrared Sources

Heat transfer is governed by three distinct mechanisms: convection, conduction, and radiation. Unlike convection or conduction, heat transfer through radiation does not occur through a particular medium. To understand this phenomenon one must enter into the atomic or quantum realm. All atoms, at finite temperatures, are continuously in motion. Consequently, it may be understood that the mechanism of radiation is derived from the energetic vibrations and oscillations of these atomic particles, namely electrons.

Posted in: Articles, Features, Photonics, Heat transfer, Thermodynamics, Heat transfer, Thermodynamics
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Dr. Gerard Holzmann, Senior Research Scientist at the Laboratory for Reliable Software, NASA’s Jet Propulsion Laboratory

After a 23 year career at Bell Labs, Dr. Gerard Holzmann joined NASA’s Jet Propulsion Laboratory in 2003 to help create the Laboratory for Reliable Software (LaRS), which he currently manages. Dr. Holzmann is credited with inventing the SPIN model checker for distributed software systems and a Method and Apparatus for Testing Event Driven Software, as well as authoring The Power of 10: Rules for Developing Safety Critical Code, and the groundbreaking book Beyond Photography – The Digital Darkroom.

Posted in: Who's Who
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Micro-Molded Spacers Protect Thermal Insulation of Cryogenic Propellants

Micro-Molded IMLI Matrix part
Phillips Plastics Corp.
Prescott, WI
877-508-0252
http://phillipsplastics.com

To achieve a high level of energy density as well as green environmental performance and safety, NASA prefers to use cryogenic propellants such as liquid oxygen, hydrogen, and methane to propel their spacecraft. However, these propellants are at very cold temperatures, as low as -423°F, and must be stored in thermally insulated tanks to keep the contents from boiling off. Next-generation NASA exploration missions will require spacecraft such as the Altair Lunar Lander to maintain cryogenic propellants for up to six months.

Posted in: Application Briefs, Green Design & Manufacturing, Propellants, Spacecraft fuel, Insulation, Plastics, Parts
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Lenses Monitor Hubble Space Telescope Servicing in Orbit

C-mount Xenoplan and Cinegon lenses
Schneider Optics
Van Nuys, CA
818-766-3715
www.schneideroptics.com

Schneider Optics’ C-mount Xenoplan and Cinegon lenses were selected by NASA to monitor aspects of the recent Hubble Space Telescope servicing mission. During the rendezvous between the shuttle Atlantis and the Hubble Space Telescope, and thereafter — while seven astronauts replaced six gyroscopes, batteries, and a sensor used to guide the telescope — the lenses were the “eyes” of the cameras that delivered high-resolution images to the shuttle and to engineers on Earth.

Posted in: Application Briefs, Optical Components, Optics, Optics, Optics, Maintenance, Repair and Service Operations, Maintenance, repair, and service operations, Inspections, Spacecraft
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Disk Lasers in the Photovoltaic Industry

Diverse types of lasers, such as nanosecond, pulsed, and excimer, have been considered for various applications in the photovoltaic industry, including edge isolation, edge deletion, drilling for back contact, cutting of Si-wafer, and patterning of crystalline solar cells. High power lasers, with high stability and high efficiency in addition to high beam quality, are needed now more than ever.

Posted in: Application Briefs, Applications, ptb catchall, Photonics, Lasers, Lasers, Electric power
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Large Area OLED Device

Novaled (Dresden, Germany) developed a 15 x 15 cm white OLED with a thickness of less than 2 mm. The Novaled OLED stack allows for a natural and warm white light, performing with a high color rendering index (CRI) of 90 - which looks similar to sunlight or what is delivered by incandescent bulbs.

Posted in: GDM, Products, Products, Energy, Energy Efficiency, Lighting
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Ultra-Portable Data Acquisition System

Dewetron USA, Wakefield, RI, has introduced the DEWE-43-V, an ultra-portable data acquisition system that includes eight 24-bit dynamic analog input channels with >100 dB dynamic range; eight synchronous counters for recording speed, counts, RPM, and duty cycle from tachometer and pulse train sources; 24 TTL level digital discrete inputs; and two high-speed CAN BUS ports. The system is made from a solid block of aluminum for rugged conditions, and is connected via USB to any Windows PC. Each of the eight analog inputs is a multifunctional signal conditioner capable of handling full-bridge strain gages and voltages up to ±10V. MSI adapters are available for IEPE accelerometers and microphones, high voltages, thermocouples, RTD sensors, and charge accelerometers. The adapters are automatically recognized by the DEWESoft-SE software, which adjusts the input ranges and engineering units to match them. GPS and video sensors can be connected to the PC and recorded in sync with the analog data from the DEWE-43-V. The unit is powered via a 6-36 VDA, and includes an AC/DC adapter with additional adapters for common AC plugs worldwide.

For Free Info Visit http://info.hotims.com/22922-120

Posted in: Products
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