Chemically Bonded Phosphate Ceramics Stop Corrosion

Corrosion of steel, aluminum, and other structural metals erodes the safety and financial stability of industries and countries alike. Fighting corrosion in ships, tanks, planes, and equipment costs the Pentagon $22.9 billion a year. Corrosion costs advanced industrialized nations about 3.5% of GDP to replace damaged material and components, plus a similar amount due to lost production, environmental impact, disrupted transportation, injuries, and fatalities.

Posted in: Application Briefs, Ceramics, Corrosion, Steel

New Energy Source Powers Single-Use Mil/Aero Equipment

Until recently, single-use high energy devices were typically powered by reserve/thermal batteries using decades-old technology. Recognizing that battery performance limitations could hinder new product development, the U.S. DoD identified a “critical need” for a new generation of high-power, long life batteries.

Posted in: Application Briefs, Defense, Batteries, Research and development, Reliability

Spectrally Compliant Waveforms for Wideband Radar

Modern radars often require the use of wideband waveforms to perform high-resolution target imaging. In microwave systems, the bandwidth can be on the order of 1.5 GHz, while in UHF systems that typically operate between 200 and 500 MHz, the waveform bandwidth might exceed 200 MHz. A major issue in the operation of such systems is that they often overlap the spectrum used by other radars, and even the spectrum allocated for other types of systems such as communications and navigation devices.

Posted in: Application Briefs, RF & Microwave Technology, RF & Microwave Electronics, Radar, Waveguides, Noise

Software System for Microbial Genome Sequence Annotation

The annotation of genomes from next-generation sequencing platforms needs to be rapid, high-throughput, and fully integrated and automated. Although a few Web-based annotation services have recently become available, they may not be the best solution for researchers that need to annotate a large number of genomes, possibly including proprietary data, and store them locally for further analysis.

Posted in: Briefs, Software, Computer software / hardware, Biological sciences, Medical equipment and supplies, Test equipment and instrumentation

Tunable Infrared Material System

The objective of this work was to lay the groundwork for the development of a new tunable II-VI infrared (IR) material system using mature III-V semiconductors as lattice-matched substrates. Mercury cadmium selenide (HgCdSe) was studied as an alternative to mercury cadmium telluride (HgCdTe) as an IRdetecting material.

Posted in: Briefs, Materials, Optics, Nanomaterials, Semiconductors

Nonlinear Acoustic Metamaterials for Sound Attenuation Applications

An acoustic crystal composed of tightly packed spherical particles can exhibit a wide spectrum of acoustic properties with responses varying from linear to highly nonlinear regimes. The physical attractiveness of these crystals resides in the controllability of such acoustic responses by simple manipulation of static pre-compression applied to the material.

Posted in: Briefs, Materials, Materials properties, Acoustics, Noise

Transparent Ceramics for High-Energy Laser Systems

When a high-energy laser (HEL) beam transmits through a window material, a part of the laser energy is absorbed by the material and causes optical aberrations. This absorbed energy results in material heating in the local exposed region, changing its refractive index based on the material’s thermo-optic coefficient, thermal expansion coefficient, and stress optic coefficient. These changes result in beam distortion and loss of output power, measured as optical path distortion (OPD), which has a severe impact on system performance.

Posted in: Briefs, Materials, Windows and windshields, Lasers, Ceramics, Heat resistant materials

Fabrication of Novel Transparent PMMA Composites for Optical Tagging

The emerging threats caused by improvised explosive devices (IEDs) have drastically increased concerns about soldier survivability. The ability to identify “friend vs. foe” of any approaching vehicles clearly, quickly, and from a distance, is invaluable to ensure a soldier’s safety, as well as critical to providing protection of facilities at strategic locations. The current state-of-the-art uses externally applied coatings or markings onto vehicles that are not seen in the visible light spectrum, yet are detectable with the use of an ultraviolet (UV) or infrared (IR) interrogation device. However, coatings can wear off or wash off, and are susceptible to being counterfeited or tempered.

Posted in: Briefs, Manufacturing & Prototyping, Optics, Identification, Composite materials, Polymers, Military vehicles and equipment

Encryption Processor

Enova Technology Corp. (San Jose, CA) has announced its ninth-generation X-Wall DX processor, a real-time hardware encryption device. The processor encrypts all USB mass storage class (MSC) devices at USB 2.0 wire speed with NIST (National Institute of Standards and Technology), and CSE (Communication Security Establishment) certified hardware for AES ECB and CBC mode of operation. Entire data-at-rest, including MBR (Master Boot Record) and Boot Sectors, are AES-encrypted. The device features FIPS 140-2 certification numbers 1471 and 1472 for the X-Wall MX-256 and X-Wall MX-256C crypto modules, respectively.

Posted in: Products, Embedded Technology, Board-Level Electronics, Electronics & Computers

Sensor Signal Conditioner

The ZSSC3008 signal conditioner integrated circuit (IC) from ZMD AG (Dresden, Germany) features enhanced onboard diagnostics and second-order linearity correction. The calibrated ZSSC3008 and a specific sensor are mated digitally.

Posted in: Products, Embedded Technology, Board-Level Electronics, Electronics & Computers