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Improved Sensing Coils for SQUIDs

Coils would be molded on outer surfaces of forms encapsulating superconducting wires. An improvement in the design and fabrication of sensing coils of superconducting quantum interference device (SQUID) magnetometers has been proposed to increase sensitivity. It has been estimated that, in some cases, it would be possible to increase sensitivity by about half or to reduce measurement time correspondingly.

Posted in: Physical Sciences, Briefs

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Metal/Metal Oxide Differential Electrode pH Sensors

These sensors are rugged, and reference solutions are not needed. Solid-state electrochemical sensors for measuring the degrees of acidity or alkalinity (in terms of pH values) of liquid solutions are being developed. These sensors are intended to supplant older electrochemical pH sensors that include glass electrode structures and reference solutions. The older sensors are fragile and subject to drift. The present developmental solid-state sensors are more rugged and are expected to be usable in harsh environments.

Posted in: Physical Sciences, Briefs

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Ka-Band Radar Terminal Descent Sensor

Radar altimeter/ velocimeter improves velocity sensing by an order of magnitude and eliminates angle-of-descent errors. The terminal descent sensor (TDS) is a radar altimeter/velocimeter that improves the accuracy of velocity sensing by more than an order of magnitude when compared to existing sensors. The TDS is designed for the safe planetary landing of payloads, and may be used in helicopters and fixed-wing aircraft requiring highaccuracy velocity sensing.

Posted in: Physical Sciences, Briefs, TSP

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Spectrometer Selected for NASA Mission to Search out Lunar Water

QE65000 spectrometer Ocean Optics Dunedin, FL 727-733-2447 www.oceanoptics.com Scheduled to launch from NASA’s Kennedy Space Center (KSC) in Florida in October of 2008, the LCROSS (Lunar Crater Observation and Sensing Satellite) mission will venture to the Moon’s south pole. The mission will carry equipment from Ocean Optics named ALICE to help analyze the makeup of the lunar craters, with the goal of locating water below the Moon’s surface. The LCROSS mission will send a rocket crashing into the Moon at twice the speed of a bullet in order to study the resulting ejecta cloud. The impact is expected to generate a 2.2-million-pound plume of matter, which another spacecraft carrying ALICE will fly through, looking for signs of water and other compounds. Measuring the reflectivity of the plume, ALICE will enable scientists to distinguish between water vapor, water ice, and hydrated minerals with molecularly bound water.

Posted in: Application Briefs

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NASA Advanced Life Support Systems Group Uses Water Reclamation Prototype

DynaJets® and DynaSwirl® cavitating jet technologies DynaFlow Jessup, MD 301-604-3688 www.dynaflow-inc.com Water is a critical product of any life support system. An estimated 12,000 kg of expendables are required to sustain a single person in space for one year, of which water comprises 86%. It is therefore imperative that water be recycled in an efficient manner. Technology used on the International Space Station consisting of conventional physico-chemical processes has a water recovery efficiency of 80 to 90%. But the level of resupply and use of expendables remains too large for longduration remote space applications.

Posted in: Application Briefs

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Smart Cars



Posted in: Blog

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Technology Business Briefs

Vertical Take-Off and Landing with Fixed-Wing Speed and Efficiency This technology, already proven under a US Army contract, creates a hybrid aircraft that combines the best attributes of helicopters with the best attributes of fixed wing aircraft, i.e. VTOL and safe auto-rotation of gyroplanes with the efficiency, cost, and speed of fixed wing aircraft. The technology enables aircraft to achieve greater point-to-point (non airport) travel, at materially higher speeds and lower operating costs, while significantly enhancing safety standards. The design limit is 500 mph.

Posted in: Blog

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