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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 waveform. The system does not require elaborate adjustments of one or more lasers and laser detectors so it may be quickly utilized. The system takes measurements from a subject when the subject is moving.

Posted in: Briefs, Medical
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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 hard-to-access environments. The Automatic Launch & Recovery System (AutoLARS) is being developed for the U.S. Navy by Allied Systems and Concept Systems. The Navy required a system for retrieving unmanned vessels and placing them aboard Navy ships. The problem is how to guide a robot that is affixed to a ship so that it can attach a line or fixture to an unmanned floating vehicle, and how to accomplish this while both are tossing at sea.

Posted in: Briefs, Physical Sciences
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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 improvements in launch performance. These revolutionary concepts aren't necessarily required to be in the propulsion arena. For example, materials that can dramatically reduce the inert mass fraction will also aid in a launch vehicle's ability to place more payload into orbit with existing propulsion systems.

Posted in: Briefs, Physical Sciences
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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 explicit mention of time, η-logic makes it easier to reason about time-dependent consequences of policies.

Posted in: Briefs, Information Technology
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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, defining the weight of the power/energy system that must be carried by the soldier.

Posted in: Briefs, Electronics & Computers
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VME NAS RAID Blade

ACT/Technico (Warminster, PA) now offers the VME RAIDStor, a single-slot 6U network attached storage (NAS) blade that provides the same automatic, transparent data replication and re-sync of traditional box-level RAID storage modules in a more compact footprint. With network access for up to 18 slots (up to 1/2 terabyte per slot) in a 19" chassis, the SATA-based VME RAIDStor is suitable for use throughout many industries in a number of high availability, data intensive applications including message processing, network- centric military environments, redundant self-hosted Web servers or storage repositories, as well as transaction processing and logging.

Posted in: Products, Products, Electronics & Computers
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Ultra-Wide Input DC-DC Converters

Aimtec (Montreal, Canada) has introduced the 2 watt AM2GW-NZ series of ultra wide input (4:1) DC-DC switching power supplies with operating temperature range of -40°C to + 85°C. Versatile, single and dual output modules are available in input ranges of 9-36V and 18-72V with I/O isolation of 1500VDC within a compact SIP9 package. With output currents of up to 500mA delivered to a regulated output voltage range of 3 to 15V, at high efficiency rates of up to 82%, the AM2GW-NZ series is ideally suited for portable power management applications, in addition to other telecom, microcontroller, DSPs industrial process systems, remote or battery backed systems, test/lab instrumentation, robotic systems and board level power distribution subsystems, datacom, and transportation equipment applications where loosely regulated input voltages are present.

Posted in: Products, Products, Electronics & Computers
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32-bit Microcontrollers

Renesas Technology (San Jose, CA) has introduced the SH7262 and SH7264 series of high-performance SuperH® 32-bit microcontrollers (MCUs) with 1Mbyte of on-chip SRAM. The 144MHz devices are highly integrated and optimized for digital audio systems, MP3 media player accessories, and graphical display systems, such as graphical dashboards for automobiles and industrial man-machine interfaces (MMI).

Posted in: Products, Products, Electronics & Computers
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Network Analysis Software

OMICRON Lab (Houston, TX) has released new operation software for its Bode 100 portable network analyzer, giving users access to an extended frequency range. With the release of Bode Analyzer Suite V2.2, OMICRON Lab has managed to reduce the lower frequency border down to 1 Hz, giving the Bode 100 a range of 1 Hz – 40 MHz for Gain/Phase and impedance measurements. This extended frequency range makes the Bode 100 suitable not only for classical network analysis but also for the analysis of control circuits (e.g. DC/DC Converters), audio and ultrasound measurements, and the measurement of piezoelectric sensors and transducers. Other features of the new operation software include a straightforward and intuitive graphical user interface and OLE compatible automation interface, which facilitates integration of the Bode 100 into automated measurement setups for a variety of manufacturing or quality control applications.

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Posted in: Products, Products, Electronics & Computers
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Software Radio PMC Modules

Pentek, Inc. (Upper Saddle River, NJ) has introduced its Model 7151 high-performance, high-resolution software radio module. Four 200 MHz 16-bit A/D converters feed a proprietary FPGA IP core that delivers 256 channels of digital down conversion. The Model 7151 is particularly well suited for GSM cell-phone monitoring and signal-intelligence applications.

Posted in: Products, Products, Electronics & Computers
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