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Representing Technologies

Solid-State Microwave Power Module
available technology

Solid-State Microwave Power Module

Typically, microwave power modules (MPMs) are useful only for radar and navigation purposes because they lack the linearity and efficiency required for communications. In standard configurations, conventional MPMs require both a solid-state amplifier at the front end and a microwave vacuum...
Acoustic liners for turbine engines
available technology

Acoustic liners for turbine engines

An improved acoustic liner for turbine engines is disclosed. The acoustic liner may include a straight cell section including a plurality of cells with straight chambers. The acoustic liner may also include a bent cell section including one or more cells that are bent to extend chamber length...
Carbon Dioxide Gas Sensors
available technology

Carbon Dioxide Gas Sensors

Current bulk or thick film solid electrolyte CO 2 sensors are expensive, difficult to batch fabricate, and large in size. In contrast, this new amperometric, solid-state, oxide-based electrolyte CO 2 microsensor is affordable, easy to fabricate, and is so small that it could easily be integrated...
Microwave Power Combiner
available technology

Microwave Power Combiner

MMICs are a type of integrated circuit that operates at microwave frequencies to amplify electronic signals. The system has at least two power amplifiers; input ports to receive power from the amplifiers; at least one power combiner, which receives power from each input port and combines them to...
Antenna near-field probe station scanner
available technology

Antenna near-field probe station scanner

A miniaturized antenna system is characterized non-destructively through the use of a scanner that measures its near-field radiated power performance. When taking measurements, the scanner can be moved linearly along the x, y and z axis, as well as rotationally relative to the antenna. The data...
Integrated Circuit Chips
available technology

Integrated Circuit Chips

NASA Glenn's durable, extreme-temperature, integrated circuit chips begin with the replacement of conventional silicon IC transistors with n-channel SiC junction field effect transistors (JFET) and resistors that can reliably function above 500°C. JFETs with the necessary high-temperature stability...
High-Voltage Water Purification
available technology

High-Voltage Water Purification

Highly oxidizing water treatments, like ozonation and UV-ionization, have proven useful in removing organics from water, but they require high capital costs and high amounts of wasteful energy consumption. Glenn's approach to water purification uses high-voltage, nanosecond-pulsed, non-equilibrium...
High/Low Temperature Contactless RF Probes
available technology

High/Low Temperature Contactless RF Probes

The design and operation of NASA Glenn's contactless RF probing systems relies on strong electromagnetic coupling that takes place between two different microwave transmission lines oriented in close proximity, but not in contact with each other to ensure high thermal isolation. In addition, the...
Rare Earth Aluminate Composites
available technology

Rare Earth Aluminate Composites

Glenn's approach utilizes a combination of alumina (Al 2 O 3 ) and specially defined ratios of rare earth oxides. These rare earth elements are typically either yttrium or gadolinium, although other rare earths may be substituted to produce different targeted effects, including generating a multi-...
Polyamide Aerogels
available technology

Polyamide Aerogels

Polyamides are polymers that are similar to polyimides (another polymer that has been developed for use in aerogels). However, because the amide link is a single chain while the imide link is a ring structure, polyamide aerogels can be made less stiff than polyimides, even though a similar...
Low-Power Charged Particle Detector
available technology

Low-Power Charged Particle Detector

Conventional scintillation radiation detectors make use of materials that emit light when hit by ionizing radiation. These large, bulky scintillators range anywhere from 6 inches to 6 feet in size. They are attached to glass photomultiplier tubes (PMTs), which are fragile, require high voltages,...
Shape Memory Alloys
available technology

Shape Memory Alloys

SMAs are alloys that have memory. The materials are deformed at low temperature and recover to their original shape upon heating. Applications of SMAs have been limited due to their low transformation temperatures. Glenn has been working to develop new high transformation temperature SMAs and as a...
Modular Battery Charge Controller
available technology

Modular Battery Charge Controller

The current state-of-the-art in digital charge control for batteries rests on the use of a single controller for multiple cells stacked in series. The main disadvantage of this approach is the battery's susceptibility to a single fault failure of the controller. In contrast, Glenn's BMS provides...
High-Strength Superelastic Compounds
available technology

High-Strength Superelastic Compounds

60NiTi, which contains 60% nickel and 40% titanium, is a superelastic intermetallic material for use in bearings, gears, and other mechanical systems. When properly processed, 60NiTi is hard, lightweight, electrically conductive, highly corrosion resistant, readily machined prior to final heat...
Circuit for Communication over Power Lines
available technology

Circuit for Communication over Power Lines

Glenn's system presents a novel combination of a device and a technique that integrates and optimizes communication and power. The technique is a method of transmitting and receiving data, using a quadrature clock to modulate and demodulate transmission signals onto and from pre-existing power...
Adaptive Phase Delay Generator
available technology

Adaptive Phase Delay Generator

The NASA Glenn Adaptive Phase Delay Generator is a flexible instrument that allows the user to generate pulses synchronized to the rising edge of a tachometer signal from any piece of rotating machinery. These synchronized pulses can vary by the delay angle, pulse width, number of pulses per period...
The Vibration Ring
available technology

The Vibration Ring

Glenn's unique, ring-shaped mechanism reduces the effect of machine vibrations by converting applied vibratory energy into electricity. The mechanism is self-contained and requires no external wiring. Unlike traditional vibration-damping elements (e.g., those made of rubber), the vibration ring is...
Polymer Cross-Linked Aerogels (X-Aerogels)
available technology

Polymer Cross-Linked Aerogels (X-Aerogels)

Researchers at NASA's Glenn Research Center have developed an approach to significantly improve the mechanical properties and durability of aerogels without adversely affecting their desirable properties. This approach involves coating conformally and cross-linking the individual skeletal aerogel...
How to Train Shape Memory Alloys
available technology

How to Train Shape Memory Alloys

Glenn researchers have optimized how shape memory alloys (SMAs) are trained by reconceptualizing the entire stabilization process. Whereas prior techniques stabilize SMAs during thermal cycling, under conditions of fixed stress (known as the isobaric response), what Glenn's innovators have done...
Engineered Matrix Self-Healing Composites
available technology

Engineered Matrix Self-Healing Composites

When a ceramic matrix cracks, the crack often occurs at the interface between the fibers and the matrix. Glenn scientists have invented a method to fabricate engineered matrix composites (EMCs) using slurry casting and melt infiltration techniques. These EMCs are designed to match the coefficient...
Analog Signal Correlating
available technology

Analog Signal Correlating

Each of two analog signals (channels A and B) is converted to a digital bit stream by phase correcting it and comparing it to an average of itself at a sampling clock rate f. The hard-limited conversions of A and B are bitwise compared to measure the level of similarity between the two by the OBDC...
Spoked Wheel Assembly
available technology

Spoked Wheel Assembly

This multi-spoked drive mechanism is capable of two rotational modes. The first mode allows for smooth operation on even surfaces. The second mode allows the assembly to automatically rotate its entire spoked structure and attempt to climb an obstacle when encountered. If the terrain is loose and...
Portable Unit for Metabolic Analysis (PUMA)
available technology

Portable Unit for Metabolic Analysis (PUMA)

PUMA represents a major breakthrough in portable metabolic analysis. It is a rugged, compact device that measures human metabolic function at rest, during exercise, in clinical settings, and in extreme environments. Metabolic measurements are a clinically proven method of monitoring cardiovascular...
Lightweight, High-Strength Hybrid Gear
available technology

Lightweight, High-Strength Hybrid Gear

The use of composites in a rotorcraft drive system, with their low density and high strength, can improve power to weight ratio. NASA Glenn inventors have succeeded in reducing the weight of large-scale gears for rotorcraft and other applications, which are conventionally machined from forgings, by...
Aerogel-Reinforced Composites
available technology

Aerogel-Reinforced Composites

GRC's aluminosilicate aerogel composites are fabricated using a sol-gel technique. A sol is formed by hydrolyzing an alumina dispersion in acid solution; the alumina may be combined with a silicon precursor to create a sol. Fabrics, papers, and felts are used as reinforcing fibers to form an...
High speed edge detection
available technology

High speed edge detection

Analog circuits for detecting edges in pixel arrays are disclosed. A comparator may be configured to receive an all pass signal and a low pass signal for a pixel intensity in an array of pixels. A latch may be configured to receive a counter signal and a latching signal from the comparator. The...
NanoWire Glass Switch for Radio Frequency
available technology

NanoWire Glass Switch for Radio Frequency

The nanoionic-based switches developed by NASA's Glenn Research Center exploit the properties of some amorphous materials that can incorporate relatively large amounts of metal and behave as solid electrolytes. As with liquid electrolytes found in lead-acid batteries, for example, solid...