Tech Exchange

Platform Technology for Electromechanical Position Sensor

This technology provides an efficient and cost-effective way to measure absolute position in one or two dimensions using a new Point Coupled Linear Transformer (PCLT). The PCLT detects movement and position on flat or curved surfaces. The nature of its design provides the sensor with excellent linearity, its DC output voltage allowing it to be used as a direct drop-in replacement for other position sensors. To date, inductive sensors (LVDT/RVDT/LVIT) have dominated the market, but they have certain limitations that can be overcome by this new technology. Namely, PCLTs can be used to measure a position on flat or curvilinear surfaces, and can also be extended to 2D measurements, whereas LVDTs are limited to 1D position sensing. PCLT also has a 90% stroke-tolength range, which is 30% better than LVDTs. This could result in a 30 to 60% weight reduction of the sensor. Get the complete report on this technology at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: Techs for License

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High-End Computing Resources to Pioneer the Future in Space Exploration, Scientific Discovery, and Aeronautics Research

As an agency, NASA invests a significant amount of resources in the development and advancement of highend computing (HEC) resources and associated technologies to support all of its missions. The demand for HEC resources has increased dramatically in the last several years and continues to grow in response to progressively challenging modeling and simulation requirements.

Posted in: NASA Tech Needs

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NASA Technology Prize Competitions – Summer 2008

NASA has a program of technology prizes currently consisting of seven competitions held throughout the year. The program, which began in 2005, is known as Centennial Challenges in recognition of the centennial of powered flight. In keeping with the spirit of the Wright Brothers and other American innovators, the Centennial Challenge prizes are offered to independent competitors who work without government support including small businesses, student groups and garage inventors. The prize competitions are targeted at a range of technical challenges that support NASA’s missions in aeronautics and space. The goal is to encourage novel solutions from non-traditional sources. In the Centennial Challenge program, NASA offers the prize money but each of the competitions is managed by an independent organization, sometimes with additional private sponsorship.

Posted in: NASA Tech Needs

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Method for Manufacturing Controlled Open-Cell Silicone Foam

A company is looking for a method to manufacture controlled, ultra-lightweight, open-cell silicone foam. The foam cells must have very similar size, and the foam must be very elastic with a water absorption coefficient of 300-400%. The company is looking for companies able to design or to license the process for controlling temperature cycle, curing time, and other main process parameters. Respond to this TechNeed at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: NASA Tech Needs

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Measurement of Oxygen with Sub-PPM

A company is searching for an innovative technology for the measurement of oxygen with sub-ppm resolution. They are seeking a continuous method of measurement or those with cycle times measured in seconds, the ability to measure within a flammable gas such as hydrogen, and a non-consumable device with a long lifetime (greater than 5 years). Oxygen shock should not damage the sensor or require special treatment to recover it. Respond to this TechNeed at: Email: nasatech@yet2.com Phone: 781-972-0600

Posted in: NASA Tech Needs

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High-Efficiency, Flexible, High-Stability Solar Cells

Nanotechnology-based hybrid nanocrystal inorganic thinfilm photovoltaics combine the best features of solar cells constructed from bulk thin-film silicon and from polymer solar cells. The colloidal nanocrystal (NC) cell technology offered here allows the production of air-stable solar cells processed using solution phase methods. The technology simplifies fabrication under ambient conditions, thus expanding the range of flexible or conformal substrates that can be used.

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Environmentally Friendly Non-Stick Perfluoroalkyls

The C6 perfluoroalkyl formulation overcomes the environmental issues inherent in other perfluoroalkyl tails, and imparts non-stick properties and resistance to oil, grease, solvents, or water that are similar to C8 fluoroalkyl tails. Chemicals containing perfluoroalkyl tails are used for stain, water, oil, and grease resistance, and for their surfactant and non-stick properties. In a commercially available formulation used on a cellulose substrate, it resists oil and water penetration under either aggressive (hot polar fats) or non-aggressive conditions (ambient temperatures, non-polar oils), and is approved for paper treatment where the paper may be in contact with food.

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