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Tech Transfer Reports
Fiber-Optic Technology Could Benefit Computer and Electronics Test Equipment
An innovative technology capable of moving data faster within high-end computers may soon benefit the multi-billion-dollar electronics test equipment market. Using a...
Briefs Physical Sciences
Nanostructured Ferromagnetic-Wire/Insulator Composites
A research and development effort now in progress is focused on nano-structured ferromagnetic- wire/insulator composite materials to be used as the magnetic-core materials of sensors for...
Briefs Materials
Barium Ferrite Materials for Microwave Circulators
Barium ferrite thick disks have been fabricated for incorporation in self-biased microwave devices. The process uses barium ferrite nanopowder mixed with epoxy. The mix is placed on alumina substrates to fabricate 500 μm thick disks of BaM to achieve good magnetic properties such as magnetic...
Briefs Materials
Lubrication Considerations for Military Equipment
Military equipment is subject to increasingly harsh environmental conditions and performance requirements. Simultaneously, engineers and equipment operators are demanding longer service life and less maintenance. The proper approach to lubrication is critical to minimizing equipment failures and...
Briefs Materials
Thermal Characterization of Thin Films for MEMS Applications
Dielectric thin films play a very important role in the development of microelectromechanical systems (MEMS). These dielectric materials often are used as insulating layers in...
Briefs Electronics & Computers
Optical Microwave-Signal-Channelization Technique Analyzed
In a recent study, a proposed technique for optical frequency-band channelization of a microwave signal or other wide-band radio signal in a receiver was analyzed and compared with...
Briefs Electronics & Computers
High-Cycle Life Testing of RF MEMS Switches
The electromechanical, RF, and charging properties of an "air-gap" capacitive switch enable it to be utilized in high-cycle life testing. Monitoring both high-speed and low-speed switching...
Briefs Photonics/Optics
Reduced Power Laser Designation Systems
This work contributes to the Micropulse Laser Designation (MPLD) project to develop a six-pound eye-safe micro-pulse laser system to locate, identify, range, mark, and designate stationary and moving targets. MPLD uses laser pulses of much lower energy and higher repetition rates than in existing laser...
Briefs Photonics/Optics
Continuous-Wave Laser Diodes Based on a Novel InGaAsNSb Material System
Laser sources operating in the spectral region from 2 to 3.5 μm are in demand for ultra-sensitive laser spectroscopy, medical diagnostics, home security, industrial process monitoring, infrared countermeasures, and optical wireless communications. Currently, solid-state...
Briefs Photonics/Optics
Photon Counting Chirped Amplitude Modulation Ladar
This work is a follow-up to prior efforts to develop a method using Geiger-mode avalanche photodiode (GM-APD) photon counting detectors in chirped amplitude modulation (AM) ladar receivers to...
Briefs Mechanical & Fluid Systems
SparkJet Actuators for Controlling Flows
SparkJet actuators are under investigation as means of controlling flows — especially supersonic and hypersonic flows. In one important class of potential applications, SparkJet actuators would be...
Briefs Mechanical & Fluid Systems
Stability of Rotors Supported by Hydrodynamic Film Bearings
The document, "Hydrodynamic Fluid Film Bearings and Their Effect on the Stability of Rotating Machinery" represents a lecture in a series "Design and Analysis of High-Speed Pumps," held in 2006 under the auspices of the North Atlantic Treaty Organization. The document introduces the basic...
Briefs Mechanical & Fluid Systems
Prototype Rocket Engine for a Nanosat Launch Vehicle
A paper discusses a prototype rocket engine for a suborbital Reusable Nanosat Launch Vehicle (RNLV). The engine must operate with thrust levels from 3,000 to 5,000 lbf. The engine is comprised of three major subassemblies: the injector, igniter, and the combustion chamber nozzle. Propellants are...
Briefs Manufacturing & Prototyping
Improvements in Manufacturing BMI/Fiber Composites Using AFP
A program now in progress is dedicated to making improvements in automated fiber placement (AFP) for the manufacture of advanced composite-material (matrix/fiber) structural...
Briefs Manufacturing & Prototyping
Patterning of Polycrystalline Bi2Te3 Thin Films on Silicon
Experiments in patterning of thin films of polycrystalline bismuth telluride (Bi2Te3) on silicon substrates have been performed. Bi2Te3 is representative of a family of thermoelectric...
Briefs Medical
Tactical Medical Coordination System
The term "tactical medical coordination system" (TacMedCS) denotes any of several prototype electronic systems for tracking patients in a scenario that may involve multiple instances of treatment by...
Briefs Medical
Remote Blood Pressure Waveform Sensing
This non-contact, non-invasive blood pressure apparatus continuously measures and monitors blood pressure using a laser Doppler vibrometer to create waveforms. The laser-based system may be utilized to continuously provide highly detailed information about the timing characteristics of the blood pressure...
Briefs Photonics/Optics
Robot Vision System for Precise Object Retrieval in Unmanned Systems
Automating large-scale material handling systems that involve picking up or retrieving items via cranes or robot arms can yield big benefits, particularly in harsh or...
Briefs Physical Sciences
Advanced Concepts for Space Access
A paper summarizes commonly proposed advanced launch concepts, including both concepts that employ propellant and propellant-less concepts. A wide range of advanced launch concepts have been proposed in an effort to revolutionize space access through either a significant reduction in launch costs or significant...
Briefs Information Technology
Explicitly Timed Authorization Logic
A document describes explicitly timed authorization logic (nicknamed "η-logic"). In prior authorization logics, it is, variously, impossible or difficult to handle time explicitly; express security policies that involve complex, time-dependent relationships; or reason accurately about time. By enabling...
Briefs Electronics & Computers
Emerging Power and Energy Technologies for Portable Electronics
A report discusses data obtained for the Navy's Special Operations Command (SOCOM), which seeks a portable power/energy source capable of providing sufficient power and energy for complex missions at a minimal weight penalty. The report focuses on the specific energy of systems,...
Articles Aerospace
The Future of Space Propulsion
Significant challenges and advances in space propulsion have occurred over the past ten years. The end of the Cold War had significant impacts, both positive and negative. Operational systems now have to operate...
Articles Energy
On-Board Vehicle Power for Mobile Forces
Current threats on our military forces have created a tremendous requirement for mobility as it relates to mission specifications. The objectives of onboard vehicle power (OBVP) are to develop,...
Products
Submersible Level Sensors
PT-500 submersible liquid level/pressure transmitters from Automation Products Group (Logan, UT) are cCSAus certified for use in Class I, Div. 1, Groups C and D, and Class I, Zone 0, Group IIB hazardous locations. They...
Products
Thick Film Resistors
IRC (Corpus Christi, TX) offers the CMH Series of high-voltage thick film resistors with voltage ratings to 20,000V and resistance range from 330 to 1GΩ. The resistors are qualified to MIL-PRF-49462, and are designed...
Products
Radiation-Tolerant FPGAs
Xilinx (San Jose, CA) has introduced radiation-tolerant Virtex®-4QV field programmable gate arrays (FPGAs) for processing needs of video, audio, radar streams, and packet processing functions in space applications....
Products
Resin System
Epsilon 99100 benzoxazine RTM/VARTM resin system from Henkel Corp. (Bay Point, CA) is designed for composite structure in aerospace applications. The resin is stable at ambient temperatures for over a year as a one-part resin. The...
Products
Access Control
Matrix Systems (Dayton, OH) offers Frontier® 5.7.5 access control software with a fault-tolerant door controller option with triple-tier data distribution redundancy. When the control of access or alarm point monitoring is...
Products
Pressure Transducer
Omegadyne (Sunbury, OH) offers the PX5000 Series pressure transducer for applications such as flight testing. Using sputtered thin-film sensor technology, the transducer has a 100,000-hour MTBF rate and is stable to 0.1% of...
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