Application Briefs

Shortwave Infrared (SWIR) Imaging Aids Laser Tracking, Detection

As warfare becomes more asymmetric, civilians and other non-combatants become a larger percentage of the casualties, along with unintended property damage. The military, of course, hopes to avoid these types of casualties and destruction. With advancing technologies that enable more precision from their weapons, they also need better pointing and targeting capabilities, while remaining covert. Improved targeting technologies that allow detection and identification at longer standoff distances from the designators also are needed. For instance, lasers are excellent at precision pointing, but it is important that others be able to covertly image the scene as well.

Posted in: ptb catchall, Applications, Photonics, Application Briefs

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Hydraulic Safety Catchers Protect Spallation Neutron Source Shutter Operation

At full power, the Spallation Neutron Source (SNS), part of Oak Ridge National Laboratory (ORNL, Oak Ridge, TN), will produce the world’s most intense pulsed neutron beams for neutron scattering research methods. With a full-power capability of 1.4 megawatts, the SNS is used for scientific research and industrial development. While neutrons are abundant in the universe, for the detailed images researchers require, only a neutron of the right “brightness” can be used; SNS provides these brighter neutrons. The neutron delivery system consists of shutters composed of tungsten and steel, weighing 18 and 30 tons and two meters thick, and which are raised and lowered vertically by stainless steel hydraulic cylinders. The shutters are used to maintain position integrity and control the flow of neutrons of the SNS. Employed at each shutter are two specially designed hydraulic release stainless steel Sitema Safety Catchers designed by Advanced Machine & Engineering (AME, Rockford, IL).

Posted in: Applications, Motion Control, Application Briefs

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Piston Pump Helps Drive Cotton Module Loading Procedure

World cotton production in 2006/07 is forecast at 115.7 million bales, and global cotton consumption is forecast at a record of nearly 121 million bales, with 13.2 million acres dedicated to cotton in the United States alone. Cotton is one of the most heavily traded commodities on the world market, and whose value is influenced by how fast the product leaves the field and gets to the gin for processing into fiber. Module Truck Systems (MTS, Lubbock, TX) designed a specialized truck, a cotton module mover, to facilitate quick transportation of cotton from the field to gin yard, using the Heavy Duty Series 2 Hydrostatic Pump from Eaton Corp. (Cleveland, OH) to drive the loading chains that holds the raw cotton as it loads into the trailer bed.

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How to Design an Embedded RDBMS Search

As the cost of micro-disk and NAND Flash continue to drop, devices are storing more and more data. It is common now for a person’s MP3 player to have more storage than their laptop. But this increase in storage capacity has not been matched with advances in the user interface. Typically, users still wrestle with a folder-based interface to find the data they want, searching by a few vendor-defined categories such as artist, album, and genre. But a new class of embedded database manage- ment systems (DBMS) is emerging to allow end users to search the way people think, rather than in this stat- ic manner. With a RAM footprint ranging from a few tens to a few hundred kilobytes, these products enable developers to deliver this sophisti- cated search on mobile devices. So how do they work? How do you write an embedded application to use a relational DBMS (RDBMS)? While there are a few kinds of DBMS, the relational model has tri- umphed over all the others, largely because it abstracts the data struc- tures so that applications don’t have to know them. A relational database management system offers a standard, high-level query language that allows access to data by content, not by pointer or location and offset.

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Flight Dynamics Software Supports NASA Mission to Measure Carbon Dioxide

focusLEO Low-Earth Orbit (LEO) flight dynamics software GMV Rockville, MD 301-926-0119 www.gmv.com The Orbiting Carbon Observatory (OCO), managed by NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, CA, is a mission to measure carbon dioxide in the Earth’s atmosphere. Orbital Sciences Corp. of Dulles, VA, will provide the OCO project’s spacecraft and real-time mission operations.

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Elastic Memory Composite Hinges Tested on Shuttle

TEMBO® Elastic Memory Composite Hinges (EMCH) Composite Technology Development (CTD) Lafayette, CO 303-664-0394 www.ctd-materials.com Elastic Memory Composite Hinges (EMCH) were developed by CTD for deploying solar arrays, communications, and optical systems in space. They are designed to drive and dampen the deployment of a structure and hold the structure firmly at the end of deployment with no dead band. Combining carbon fiber reinforcement and shape-memory polymers, the hinges are constructed of TEMBO® composites, which replace complex mechanical deployment systems with lighter ones.

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Reactive Solders Improve Fiber Couplers and OE Bonding

Optical and optoelectronic (OE) devices are being rapidly integrated into many facets of everyday life. From telecommunications to sensor applications, these devices are expected to perform accurately and reliably for long periods of time.

Posted in: ptb catchall, Applications, Photonics, Application Briefs

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