Articles

NASA's Hot 100 Technologies: Manufacturing & Prototyping

Variable Power Handheld Laser Torch A handheld laser torch was designed for welding and brazing metals to repair hard-to-reach space shuttle engine nozzles. It incorporates various manual controls and changing lenses to allow the operator to adjust the laser’s power output in real time. Applications are likely to be in-field welding and brazing of damaged equipment where traditional welding systems cannot easily access the welding area.

Posted in: Manufacturing & Prototyping, Techs for License, Articles

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NASA's Hot 100 Technologies: Materials & Coatings

Shape Memory Alloys Shape Memory Alloys (SMAs) can be deformed at low temperature and recover their original shape upon heating. New alloys can operate up to ~300 °C, compared to ~80 °C for commercially available alloys. SMAs can be used in adaptive structures, actuators, heat detection devices, medical devices, high-temperature automotive components, aeronautics, and military.

Posted in: Materials, Coatings & Adhesives, Techs for License, Articles

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NASA's Hot 100 Technologies: Mechanical & Fluid Systems

Spring Joint Package with Overstrain Sensor This flexible joint provides two degrees of freedom and a tremendous amount of compliance. The overstrain sensor joint has a passive and restoring force that allows the joint to return to a default position, and is also proportional to the amount of lateral deflection the spring has undergone; this allows the OS sensor joint to be used in many of the under-constrained situations that cause universal joints to lock up.

Posted in: Motors & Drives, Fluid Handling, Techs for License, Articles

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NASA's Hot 100 Technologies: Optics

Automated Vision Test The traditional test for visual acuity requires the patient to look and report which letters they see. A new invention provides an automated system to estimate visual acuity based on objective measurements of the eye optics and wavefront aberrations. A typical measurement consists of a list of numbers that constitute the coefficients of the polynomials. The algorithm converts the list of numbers into an estimate of the visual acuity of the patient.

Posted in: Machine Vision, Imaging, Techs for License, Articles

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NASA's Hot 100 Technologies: Power Generation & Storage

Model-Based Prognostics For Batteries Effective Battery Health Monitoring (BHM) technologies are needed to ensure that battery operation is optimal and, if not, that it stays within design limits. BHM technologies protect the asset’s batteries from degradation due to non-optimal usage, and ensure viable levels of system availability, reliability, and sustainability in the presence of degraded batteries.

Posted in: Energy Storage, Solar Power, Techs for License, Articles

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NASA's Hot 100 Technologies: Propulsion

Fully Premixed, Low-Emission, High-Pressure, Multi-Fuel Burner This burner is capable of operating on a variety of gaseous fuels and oxidizers, including hydrogen-air mixtures, with a low pressure drop. The burner provides a rapidly and uniformly mixed fuel-oxidizer mixture that is suitable for use in a fully premixed combustion regime that has the benefits of low pollutant emissions and freedom from harmful flashback effects, combustion instabilities, and thermal meltdown problems.

Posted in: Aerospace, Techs for License, Articles

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NASA's Hot 100 Technologies: Robotics, Automation & Control

Inductive Monitoring System IMS software utilizes techniques from model-based reasoning, machine learning, and data mining to build system-monitoring knowledge bases from archived or simulated sensor data. In real time, IMS performs monitoring functions, determining and displaying the degree of deviation from nominal performance. IMS trend analyses can detect conditions that may indicate a failure or required system maintenance.

Posted in: Machinery & Automation, Robotics, Techs for License, Articles

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