Latest Stories
Briefs Physical Sciences
Distributed Fiber Optic Sensing for Homeland Security
To address the need to protect our borders and critical infrastructure, fiber optic sensing technology developed for antisubmarine warfare applications has been adapted to homeland...
Briefs Physical Sciences
Computational Cameras
A computational camera uses a combination of optics and software to produce images that cannot be taken with traditional cameras. A variety of computational cameras has been demonstrated; some designed to achieve new...
Briefs Physical Sciences
Miniature Snapshot Multispectral Imager
Multispectral imagers use an optical device that can separate the colors to obtain the spectral content in the scene. Such an optical device could be a grating or prism, a filter wheel, a diffractive...
Briefs Photonics/Optics
Distributed, Collaborative Human- Robotic Networks for Search, Identify, and Track
A human-robotic system is under development that can map an unknown environment, as well as discover, track, and neutralize several static and dynamic objects...
Briefs Physical Sciences
Multifunctional Vehicle Structural Health Monitoring with Piezoelectric Wafer Active Sensors
A novel structural health monitoring (SHM) concept of embedded nondestructive evaluation with piezoelectric wafer active sensors (PWAS) has been...
Briefs Physical Sciences
Acoustic Detection Using Reverberation
Acoustic detection of undersea objects is difficult due to the uncertain environment and even more difficult when the objects are buried in the seabed. First, sediments generate high backscattering noise due to heterogeneous scatters within the sediments, clouding the object.
Briefs Medical
Process for Testing Aeromedical Equipment
Medical devices are designed to function in environmentally controlled locations, such as stationary hospitals, and not within the harsh, dynamic aircraft environment. Yet, the same medical devices...
Briefs Physical Sciences
Ultrasonic Guided Wave Analysis for Detecting and Classifying Damage in a Thin Metallic Plate
A ircraft and rotorcraft structures are being redesigned with new lower weight materials; however, older metallic structures continue to be used. These older structures need monitoring and characterization of damage for con-
tinued operation. The...
Briefs Physical Sciences
Disposable Chemical Sensor and Wireless Communication Device
A disposable chemical sensor and temperature device has been developed that may be dropped into building rubble or other areas not accessible by rescue personnel to test the environment in the rubble. The system also provides wireless two-way communication and control to obtain...
Products Physical Sciences
Borosilicate Glass
SCHOTT North America, Inc. (Louisville, KY) presents SUPREMAX® 33 rolled borosilicate glass for telescope applications. SUPREMAX 33, which has the properties of SCHOTT’s BOROFLOAT® 33, provides low thermal expansion,...
Products Photonics/Optics
AR Coatings for Optical Fibers
Laser Components (Hudson, NH) offers both assembled cables, including coated fibers, and job coatings on fibers supplied by the customer. They also offer anti-reflection coatings, which significantly reduce...
Products Imaging
Surveillance Sensor
The Hyperspec Point & Stare sensor from Headwall Photonics (Fitchburg, MA) is a fully integrated imaging sensor used for unattended, ground-based surveillance applications. The sensor identifies objects based on the...
Products Physical Sciences
Power Generation System
Kollmorgen (Radford, VA) introduces the Power Generation System, a 28 VDC system that generates up to 30kW of power. Consisting of a permanent magnet AC generator, generator controller, software, and cables, the...
Briefs Physical Sciences
Compressive Oversampling for Robust Data Transmission in Sensor Networks
A paper discusses recent developments in the area of Compressive Sensing (CS) for data loss in wireless sensing applications. Since many physical signals of interest are known to be sparse or compressible, employing CS not only compresses the data and reduces the effective...
Briefs Physical Sciences
Development of an Electrochemical Biosensor for Organophosphate Chemicals
Detection of organophosphate (OP) compounds has attracted much attention in terms of safeguarding human health, owing to their frequent use as pesticides in agriculture and their potential use as chemical warfare agents. Among a variety of biological methods based on the...
Briefs Physical Sciences
Novel Active Transient Cooling Systems
Energy-efficient cooling technology is extremely important in today’s society, considering the need for energy conservation and the urgent need to mitigate global warming. Near-room-temperature...
Briefs Physical Sciences
Diode Laser Sensor for Scramjet Inlets
The supersonic combustion ramjet (scramjet) engine is one of the more promising high-speed flight propulsion technologies. One of the reasons for this is the simplicity of the engine design, having no...
Briefs Physical Sciences
MALDI-MSI Imaging of Latent Fingerprints
For years, forensic scientists have been seeking new methods to improve existing techniques for the visualization of latent fingerprints. The structured combination of optical methods (diffused reflection, luminescence, UV absorption and reflection), physical methods (powdering, vacuum metal deposition,...
Briefs Physical Sciences
Battery Electrolyte Level Detector Apparatus
An apparatus has been developed for checking the electrolyte level in a battery, providing a safer and more efficient means to do so. The result is a non-intrusive apparatus and method of checking the electrolyte level that reduces the need to open the caps on the battery by checking the level...
Briefs Physical Sciences
Forehead-Mounted Sensor Measures Oxygen Saturation for Hypoxia Early Detection and Warning
Symptoms of hypoxia – a deficiency in the amount of oxygen reaching body tissues - have been documented among rotary-wing pilots and aircrew flying...
Briefs Physical Sciences
Manifold-Based Image Understanding
The rapid growth of sensing and imaging technology, combined with the need for near-real-time action based on the sensed data, has rendered automatic processing, understanding, and decision-making vital to...
Briefs Physical Sciences
Outdoor Synthetic Aperture Acoustic Ground Target Measurements
A novel outdoor synthetic aperture acoustic (SAA) system consists of a microphone and loudspeaker traveling along a 6.3-meter rail system. This is an extension of a prior indoor...
Briefs Physical Sciences
Portable, Rapid-Test Fuel Tank Leak Detection System
In 1988, the EPA issued Underground Storage Tank (UST) regulations for fuel storage in order to implement monthly monitoring and annual tightness testing. Monthly monitoring requires that...
Briefs Physical Sciences
Uncooled Tunable LWIR Microbolometers
Uncooled infrared detectors have significant potential capabilities that have been little explored. Micro-machined uncooled detectors with tunable spectral characteristics across the long-wave infrared...
Briefs Physical Sciences
Fluid Helmet Liner for Protection Against Blast-Induced Traumatic Brain Injury
An Advanced Combat Helmet liner design uses the novel idea of including filler materials inside channels in the liner. An energy-absorbing foam was selected for the main liner structure, and several filler material candidates of widely varying properties are being...
Briefs Physical Sciences
Performance of Steel Stud Walls Subjected to Blast Loads
Construction trends have brought about an increase in the use of cold-formed steel studs in Air Force facilities. These steel stud walls have significant potential for mitigating large...
Briefs Physical Sciences
Through-the-Wall Small Weapon Detection Based on Polarimetric Radar Techniques
Detecting concealed small weapons carried by people has received significant interest from law enforcement agencies as well as the military, most frequently for...
Briefs Physical Sciences
Fiber-Optic Seismic Sensor for Unattended Ground Sensing
Seismic military sensors are required to be robust, reliable, compact, and easy to install and operate to be effective in the battlefield environment. Three types of sensor...
Briefs Physical Sciences
Liquid-Crystal-Based Optical Phased Array for Steering Lasers
A paper describes the basic design and concepts of tunable liquid-crystal polarization gratings with a nematic liquid crystal (LC) optical phase plate, with a large, continuous in- plane gradient that is variable, and its application to a beam steering device with high efficiency.
Top Stories
INSIDERManned Systems
Turkey's KAAN Combat Aircraft Completes First Flight - Mobility Engineering...
INSIDERMaterials
FAA Expands Boeing 737 Investigation to Manufacturing and Production Lines -...
INSIDERImaging
New Video Card Enables Supersonic Vision System for NASA's X-59 Demonstrator -...
INSIDERManned Systems
Stratolaunch Approaches Hypersonic Speed in First Powered TA-1 Test Flight -...
INSIDERUnmanned Systems
Army Ends Future Attack and Reconnaissance Helicopter Development Program -...
ArticlesEnergy
Can Solid-State Batteries Commercialize by 2030? - Mobility Engineering...
Webcasts
AR/AI
From Data to Decision: How AI Enhances Warfighter Readiness
Energy
April Battery & Electrification Summit
Manufacturing & Prototyping
Tech Update: 3D Printing for Transportation in 2024
Test & Measurement
Building an Automotive EMC Test Plan
Manufacturing & Prototyping
The Moon and Beyond from a Thermal Perspective
Software
Mastering Software Complexity in Automotive: Is Release Possible...