Sammy A. Nabors

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256-544-5226

Representing Technologies

Fiber optic liquid mass flow sensor and method
available technology

Fiber optic liquid mass flow sensor and method

A method and apparatus are provided for sensing the mass flow rate of a fluid flowing through a pipe. A light beam containing plural individual wavelengths is projected from one side of the pipe across the width of the pipe so as to pass through the fluid under test. Fiber optic couplers located at...
Advanced Magnetostrictive Regulator
available technology

Advanced Magnetostrictive Regulator

Magnetostrictive materials used in valves developed at Marshall allow the valve to be opened and closed via application of a magnetic field to the outside of the valve envelope. This process contains all moving parts inside the pressure shell, eliminating the need for feedthroughs or mechanical...
Ultrasonic Stir Welding
available technology

Ultrasonic Stir Welding

Ultrasonic Stir Welding is a solid state stir welding process, meaning that the weld work piece does not melt during the welding process. The process uses a stir rod to stir the plasticized abutting surfaces of two pieces of metallic alloy that forms the weld joint. Heating is done using a...
Variable-Aperture Reciprocating Reed (VARR) Valve
available technology

Variable-Aperture Reciprocating Reed (VARR) Valve

The VARR valve has been designed to provide a variable-size aperture that proportionately changes in relation to gas flow demand. When the pressure delta between two chambers is low, the effective aperture cross-sectional area is small, while at high delta pressure the effective aperture cross-...
Variable-Power Handheld Laser Torch
available technology

Variable-Power Handheld Laser Torch

Features of the handheld torch's design include manual controls to modify the laser diameter and power output in real time. This ability allows the user to adjust the laser depending on circumstantial needs, resulting in a torch that is well suited for in-field repairs of metals where space and...
NASA-427: A New Aluminum Alloy
available technology

NASA-427: A New Aluminum Alloy

The NASA-427 alloy, with its origins in the Ares rocket program, has high potential for use in a number of automotive applications, including cast aluminum wheels, control arms, steering knuckles, and other components. Why its Better This technology uses precise chemistry to improve the mechanical...
Nested Focusing Optics for Compact Neutron Sources
available technology

Nested Focusing Optics for Compact Neutron Sources

Conventional neutron beam experiments demand high fluxes that can only be obtained at research facilities equipped with a reactor source and neutron optics. However, access to these facilities is limited. The NASA technology uses grazing incidence reflective optics to produce focused beams of...
Aluminum Alloy for High Temperature Applications
available technology

Aluminum Alloy for High Temperature Applications

NASA 398 is an aluminum-silicon hypereutectic alloy (16% w. Si) with a microstructure that consists of small polygonal primary silicon particles evenly distributed in an aluminum matrix. The alloy can be utilized in automotive applications with high mechanical loading at elevated temperatures from...
Adjustable Liquid Power Load for RF Systems
available technology

Adjustable Liquid Power Load for RF Systems

The adjustable liquid power load is a highly safe and reliable system. Rapid power absorption with negligible temperature changes is achieved due to the mass and specific heat properties of the liquid. System matching, which is needed to provide maximum power transfer between the source and the...
Thermal Stir Welding
available technology

Thermal Stir Welding

NASA's new thermal stir technology addresses shortcomings in fusion welding and friction stir welding. Fusion welding compromises the microstructure of the material and thus lessens its physical properties. Friction stir welding is limited by the dependent heating and stirring functions when using...
New Optics See More with Less
available technology

New Optics See More with Less

This technology emerged from NASA's advanced optics research for space applications. Unlike fish-eye lenses, which use refraction to produce a 190-degree image field, NASA Marshall Space Flight Center's panoramic reflecting optic lens uses both refraction and internal reflection to provide a unique...
Non-Collinear Valve Actuation System
available technology

Non-Collinear Valve Actuation System

The actuator and return spring are connected non-collinearly using a rotably-affixed four bar linkage arm. The non-collinearity of the primary actuating system and return spring system of the NASA actuator allows the system to use a larger stroke while the return spring system experiences...
Crystal-free Formation of Non-Oxide Optical Fiber
available technology

Crystal-free Formation of Non-Oxide Optical Fiber

Signal propagation through traditional silica-based optical fibers is limited to visible and near-infrared wavelengths. In contrast, non-oxide glasses such as chalcogenide and heavy metal fluoride glasses (e.g. ZBLAN) are highly transparent from near ultraviolet to mid-infrared wavelengths and have...
Fluid Structure Coupling Technology
available technology

Fluid Structure Coupling Technology

FSC is a passive technology that can operate in different modes to control vibration: Harmonic absorber mode: The fluid can be leveraged to act like a classic harmonic absorber to control low-frequency vibrations. This mode leverages already existing system mass to decouple a structural resonance...
Improving Formability of Al-Li Alloys
available technology

Improving Formability of Al-Li Alloys

Via this NASA innovation, a product is first heated to a temperature within the range of 204 to 343 degrees C for an extended soak of up to 16 hours. The product is then slowly heated to a second temperature within the range of 371 to 482 degrees C for a second soak of up to 12 hours. Finally, the...
Liquid level sensing system
available technology

Liquid level sensing system

A liquid level sensing system includes waveguides disposed in a liquid and distributed along a path with a gap between adjacent waveguides. A source introduces electromagnetic energy into the waveguides at a first end of the path. A portion of the electromagnetic energy exits the waveguides at a...
Space vehicle valve system
available technology

Space vehicle valve system

The present invention is a space vehicle valve system which controls the internal pressure of a space vehicle and the flow rate of purged gases at a given internal pressure and aperture site. A plurality of quasi-unique variable dimension peaked valve structures cover the purge apertures on a space...
Safety drain system for fluid reservoir
available technology

Safety drain system for fluid reservoir

A safety drain system includes a plurality of drain sections, each of which defines distinct fluid flow paths. At least a portion of the fluid flow paths commence at a side of the drain section that is in fluid communication with a reservoir's fluid. Each fluid flow path at the side communicating...
Reconfigurable Avionics Drive/Sensor Modules
available technology

Reconfigurable Avionics Drive/Sensor Modules

Current, centralized avionic architectures rely on highly integrated, complex PDUs that require support equipment, usually larger than the unit itself, and require high software development costs. Through a small form factor, reconfigurable design, and distributed architecture, NASA's SMART...
Hermetic Seal Leak Detection
available technology

Hermetic Seal Leak Detection

How it works An hermetically sealed item is placed in the leak detection system chamber and the device is activated while the resulting pressure is monitored by a data collection system. Any large leak present is immediately indicated by the data system pressure response. For very small leaks, the...
High-Speed, Low-Cost Telemetry Access from Space
available technology

High-Speed, Low-Cost Telemetry Access from Space

NASA's SDR uses Field-Programmable Gate Array (FPGA) technology to enable flexible performance on orbit. A first-generation FM-modulated transceiver is capable of operating at up to 1 Mbps downlink and 50 kbps uplink, full duplex. An FPGA performs Reed-Solomon (255,223) encoding, decoding, and bit...
Fluid Flow Metering and Mixing Technologies
available technology

Fluid Flow Metering and Mixing Technologies

The suite of innovations includes: a fluid-mixing plug with metering capabilities; an unbalanced-flow, fluid-mixing plug with metering capabilities; a flow meter plug with length-to-hole size uniformity; and an eddy-current-minimized flow plug for use in flow conditioning and flow metering. How it...
Accelerometer and Gyroscope Designs Based on CNT Tape
available technology

Accelerometer and Gyroscope Designs Based on CNT Tape

NASA's accelerometer was designed to address the shortcomings of conventional piezoelectric-based accelerometers that are made from ceramic materials such as barium titanate (BaTiO3) or lead titanate (PZT). These materials are inherently brittle, have a tendency to be noisy, have difficulty sensing...
Tool for Rapid Identification of TCE in Plants
available technology

Tool for Rapid Identification of TCE in Plants

Plant uptake of TCE from contaminated groundwater is a well-known phenomenon. During the photosynthesis process, plants metabolize the TCE into a byproduct called trichloroacetic acid (TCAA). TCAA has been found to be a good indicator (or surrogate) molecule for the presence of TCE because it is...
High-Power/Pulsed-Power Electrical Switch
available technology

High-Power/Pulsed-Power Electrical Switch

Ignitrons are high-current switches that can open and close very quickly by using vaporized-metal plasma arcs to complete a circuit. Mercury is typically used because it does not tend to plate out the internal surfaces of the ignitron structure and cause a short-circuit pathway, permanently closing...
Interim, In Situ Additive Manufacturing Inspection
available technology

Interim, In Situ Additive Manufacturing Inspection

The in situ inspection technology for additive manufacturing combines different types of cameras strategically placed around the part to monitor its properties during construction. The IR cameras collect accurate temperature data to validate thermal math models, while the visual cameras obtain...
Low-Cost, Long-Lasting Valve Seal
available technology

Low-Cost, Long-Lasting Valve Seal

NASA&#8217s technique simplifies the seat installation process by requiring less installation equipment, eliminating the need for unnecessary apparatus such as fasteners and retainers. Multiple seals can be installed simultaneously, saving both time and money. NASA has tested the long-term...
Gimbal for Steering Propelled CubeSats
available technology

Gimbal for Steering Propelled CubeSats

The small thruster mount, roughly the size of a doughnut, controls the rotation and tilt of a directional system to a high degree of accuracy, 0.02&#0176. NASA developed the rotary tilting gimbal (RTG) for thruster directional control of CubeSats. This RTG is designed to provide precision...
Novel, Solid-State Hybrid Ultracapacitor Battery
available technology

Novel, Solid-State Hybrid Ultracapacitor Battery

The subject technology is an extension of closely related, solid-state ultracapacitor innovations by the same team of inventors. The primary distinction for this specific technology is the addition of co-dopants to affect the dielectric behavior of the barium titanatebased perovskite materials...
Diamond Pellet Grinding Tool
available technology

Diamond Pellet Grinding Tool

The NASA Marshall invention makes use of a template fabricated via 3D printing that encapsulates diamond pellets and fits over a CNC tool head. The unique design solves the problems associated with similar, commercially available designs where other types of fixtures articulated, or gave way, too...
Improving Melt-Grown Semiconductor Crystal Quality
available technology

Improving Melt-Grown Semiconductor Crystal Quality

This technology is particularly relevant for preparation of single-crystal II-VI wafers, and has been demonstrated for CdTe and CdZnTe compositions. The problem with II-VI semiconductors is the large degree of supercooling of the melt that occurs before nucleation and solidification. This...
Rocket Nozzle Side-Load Analysis Software
available technology

Rocket Nozzle Side-Load Analysis Software

The algorithm is based on an aeroelastic modeling capability that couples the necessary structural dynamics component into an anchored computational fluid dynamics methodology. The fluid dynamics component is an unstructured-grid pressure-based computational formulation, whereas the structural...
Novel Dielectric Ceramic by Spark Plasma Sintering
available technology

Novel Dielectric Ceramic by Spark Plasma Sintering

Barium titanate ceramics have been used as a capacitor material for many years and are the mainstay for millions of chip capacitors used in systems today. The research behind the NASA Spark Plasma Sintered Dielectric Technology focused on optimizing the ferroelectric characteristics of barium...
Multi-and Wide-Band Single-Feed Patch Antenna
available technology

Multi-and Wide-Band Single-Feed Patch Antenna

NASA's patch antenna technology exhibits higher operational bandwidth (on the order of 20%) than typical patch antennas (less than 10%) and can operate across integer-multiple frequency bands (e.g. S/X, C/X, S/C). Testing of the antenna design has demonstrated &#62 6dB of gain on both S and X...
available technology

A Method for Producing Compound Semiconductors

Vapor growth techniques have significant advantages over melt growth, resulting from (1) lower processing temperatures, (2) purification processes associated with vapor growth, and (3) improved structural quality of grown crystals. However, the main disadvantages associated with this technique have...
available technology

Cryogenic Hydraulically Actuated Isolation Valve

NASA&#39s cryogenic isolation valve technology uses solenoid valves powered by direct current (DC) electrical energy to control and redirect the energy stored in the upstream line pressure. Powering the solenoid valves only requires a DC power source capable of supplying 22 watts that can be...
Novel Solid-State Humidity Sensor
available technology

Novel Solid-State Humidity Sensor

NASA&#8217s novel ceramic dielectric material enables extremely highsensitivity humidity sensing. The ceramic sensing element is robust, can be manufactured using printing processes, and exhibits fast response and recovery speeds with large capacitance and resistance response/change per...
Fluid-Filled Frequency-Tunable Mass Damper
available technology

Fluid-Filled Frequency-Tunable Mass Damper

NASA MSFC&#8217s Fluid-Filled Frequency-Tunable Mass Damper (FTMD) technology implements a fluid-based mitigation system where the working mass is all or a portion of the fluid mass that is contained within the geometric configuration of either a channel, pipe, tube, duct and/or similar type...
A One-piece Liquid Rocket Thrust Chamber Assembly
available technology

A One-piece Liquid Rocket Thrust Chamber Assembly

The one-piece multi-metallic composite overwrap thrust chamber assembly is centrally composed of an additively manufactured integral-channeled copper combustion chamber. The central chamber is being manufactured using a GRCop42 or GRCop84 copper-alloy additive manufacturing technology previously...