Tech Exchange

Dust Mitigation Connectors for Electrical Cables and Fluid Lines

Faults in wiring systems are a serious concern for the aerospace and aeronautic (commercial, military, and civil) industries. Circuit failures and vehicle accidents have occurred and have been attributed to faulty wiring created by open and/or short circuits. Often, such circuit failures occur due to vibration during vehicle launch or operation.

Posted in: NASA Tech Needs

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Indoor Positioning System Utilizes Wireless LAN Network

A positioning system utilizes ZigBee™, a wireless sensor network on the 2.4-GHz ISM band. The technology applies stochastic reasoning in analyzing the ID and received signal strength indication (RSSI) of received wireless signals. Due to multipath interference, the position of people or target objects can be estimated within a margin of error of one to several meters, regardless of signal loss, noise, or signal fluctuation.

Posted in: Techs for License

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Square Piston Engine Reduces Emissions

The Square Piston Engine (SPEC), a two-stroke engine with a square piston, has an improved power-to-weight ratio compared to existing engines. The engine features the same three moving parts as a conventional two-stroke engine: crank, gudgeon, and piston. The delayed opening of the exhaust port on the power stroke provides a cleaner burn of the fuel, yielding more torque and lower emissions. The SPEC also has a closed-loop engine oiling system, which provides component durability and reduced hydrocarbon consumption. The engine is modular in design, providing significant manufacturing flexibility.

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Materials that Form Mesh-Based Sheets

Materials exist that provide optical clarity, but the fabricmaking process drives the costs too high. A company seeks cost-effective materials and technologies that will form meshbased sheets exhibiting high optical clarity and low haze. The resulting sheet/film/fabric will also be evaluated based on cost effectiveness of production (material and process), the ability to be processed in current machines, and water diffusion. The material must be food-grade and flexible, and it should have a pore/mesh size no greater than 200 microns.

Posted in: Tech Needs, NASA Tech Needs

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Packaging Defect Detection

Consumers desire dent-free packages and properly affixed labels on 3D rigid packaging. A client seeks an automated system that will check the quality of these labels, and will detect, measure, and record critical information. The detection procedure will inform changes in processes, materials, or equipment to reduce or eliminate the imperfections. Such technology would first be applied for off-line lab tests, and then ideally be scaled for use in an online packaging system; the system will require real-time monitoring during packaging production. The equipment must detect defects as small as 2 mm.

Posted in: Tech Needs, NASA Tech Needs

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Detection of Pathogens, Environmental Contaminants, and Illicit Materials

The University of Georgia Research Foundation has a portfolio of technologies for the fast and accurate detection and identification of pathogens and chemicals. The technologies provide for a scalable and inexpensive method for the detection of disease agents as well as environmental contaminants, materials of relevance to homeland security, etc.

Posted in: Techs for License

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Smart Grid Technology for Monitoring Power Generation of Each Solar Panel

The National Institute of AIST in Japan has developed a communication technology that uses the direct current (DC) power line of a solar panel as a communication line. The technology helps monitor the power generation in each solar panel, which is useful for the maintenance of the panel and the prompt detection of malfunctions. The monitoring unit of the developed communication system is small and can be placed in the terminal box of a solar panel. The system does not require additional wiring work because the existing DC power lines from the solar panels are used for communication.

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