公开(公告)号：US10775679B1

公开(公告)日：2020-09-15

申请号：US16109472

申请日：2018-08-22

Applicant: United States of America as represented by the Administrator of NASA

Inventor： Michael A. Krainak

IPC: G02F3/02 ,  H01S5/065 ,  G02B5/18

Abstract: The present invention relates to a coherent optical transistor device including: first and second coherent optical laser beams from a laser source; wherein the first beam has a relatively higher power/energy than the second beam of at least 2:1; and a permanent sub-wavelength structure in a unitary section into which the first and second beams enter, which permanently modifies a refractive index in both transverse and longitudinal directions; wherein every transverse spatial grating Fourier component in the sub-wavelength structure is phase-shifted by 90 degrees (pi/2) from each of corresponding Fourier components of a spatial interference of the first and second optical beams; and a refractive index profile in the unitary structure in the longitudinal direction is permanently modified, leading to a complete transfer of energy from the first to the second optical beam, resulting in a gain mechanism that results in an amplified signal beam and an inverted signal beam.

公开(公告)号：US10730646B1

公开(公告)日：2020-08-04

申请号：US15957514

申请日：2018-04-19

Applicant: United States of America as represented by the Administrator of NASA

Inventor： Hans R. Raven ,  Matthew W. Sammons ,  Patrick O'Neill

IPC: B64G4/00 ,  B64G1/40

Abstract: Disclosed herein is a system including an oxidizer nozzle tool having a first end, a rotary drive and a linear drive mechanism. A component, such as a quick disconnect valve, is attached to the first end of the oxidizer nozzle. The rotary drive actuates the component to engage and seal to a drain valve on a device (such as a satellite) such that the component can open and close the drain value while maintaining the seal, wherein the linear drive mechanism is operable to lock and release the component from the oxidizer nozzle tool. A hose is mated to the oxidizer nozzle tool, wherein upon actuation, fluid flows through the hose to the oxidizer nozzle tool and through the component into the drain valve.

公开(公告)号：US10697890B1

公开(公告)日：2020-06-30

申请号：US16143762

申请日：2018-09-27

Applicant: United States of America as represented by the Administrator of NASA

Inventor： Steven A. Bailey ,  Thomas F. Hanisco

IPC: G01N21/33 ,  G01N21/25 ,  G01N33/00

Abstract: The present invention relates to measuring hydroxyl in an atmosphere, including forwarding sunlight and ultraviolet light into a gas cell; switching between nitrogen gas only, or nitrogen gas and water vapor, into the gas cell; emitting ultraviolet rays into the cell which breaks down the water vapor into hydroxyl; and detecting a difference between two states, including 1) an OFF state where only nitrogen gas does not react to the ultraviolet light or the sunlight and there is no OH filter and the detector detects light that OH absorbs; and 2) an ON state where the water vapor is broken down by the ultraviolet rays to produce hydroxyl, and the gas cell acts as an OH filter and does not detect the light that OH absorbs; where a difference in signals measured by the detector in the two states is proportional to a column abundance of OH in earth atmosphere.

公开(公告)号：US10696080B1

公开(公告)日：2020-06-30

申请号：US15044749

申请日：2016-02-16

Applicant: 1900 LLC ,  UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA

Inventor： Andrew H Cannon ,  March C Maguire ,  Jacob D Hochhalter

IPC: B41N1/00 ,  B41C1/06 ,  G03F7/00

Abstract: A method and surface micro patterned stamp for patterning image correlation test specimens is disclosed. The stamp may be formed and applied to the surface of structural components and laboratory test specimens in a repeatable fashion while reducing requisite infrastructure and time. The resulting test specimen incorporating the surface micro stamped pattern is also disclosed.

公开(公告)号：US10689986B1

公开(公告)日：2020-06-23

申请号：US15728941

申请日：2017-10-10

Applicant: United States of Americas as represented by the Adminstrator of NASA

Inventor： Ali A. Ameri ,  Vikram Shyam

IPC: F01D5/18

Abstract: A film cooled component is provided that includes a body having a cavity defined therein, wherein a coolant is supplied to the cavity cooling apertures having at least one channel defined on an inside surface. The coolant exits the cavity through the plurality of cooling apertures thereby providing a cooling effect to the body and the channel creates an air flow such that the air coolant moves towards the body upon exiting the plurality of cooling apertures. The film cooled component may include cooling apertures configured to reverse blow coolant air.

公开(公告)号：US20200180780A1

公开(公告)日：2020-06-11

申请号：US16704910

申请日：2019-12-05

Applicant: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA

Inventor： Sriram K. Rallabhandi

IPC: B64D43/02

Abstract: A high-fidelity, multi-point, full-mission sonic-boom propagation tool that includes functionality to handle aircraft trajectories and maneuvers, as well as, all relevant noise metrics at multiple points along the supersonic mission. This allows efficient computation of sonic-boom loudness across the entire supersonic mission to allow pilots and aircraft operators to plan the aircraft flight path to manage the sonic boom footprint.

公开(公告)号：US10677741B2

公开(公告)日：2020-06-09

申请号：US16050319

申请日：2018-07-31

Applicant: United States of America as represented by the Administrator of NASA

Inventor： John W. Connell ,  Frank L. Palmieri ,  William T. Yost ,  John W. Hopkins ,  Rodolfo I Ledesma

IPC: G01N21/94 ,  H05H1/00 ,  B23K26/12 ,  B23K26/08 ,  B08B7/00 ,  B23K26/50 ,  G01N21/71 ,  G01J3/443 ,  B23K26/0622

Abstract: Systems, methods, and devices of the various embodiments may enable simultaneous preparation of a substrate for adhesive bonding and detection of minute contaminants on the substrate. Various embodiments may enable detection of contaminants on a surface of a substrate while the surface of the substrate is being prepared for adhesive bonding by laser ablation. Various embodiments may provide an integrated laser treatment and measurement system.

公开(公告)号：US10657371B1

公开(公告)日：2020-05-19

申请号：US16145570

申请日：2018-09-28

Applicant: United States of America, as represented by the Administrator of NASA

Inventor： Sabrina N. Thompson ,  Sean R. Semper ,  Philip C. Calhoun ,  Neerav Shah

IPC: G06K9/00 ,  G06T7/73 ,  G06T7/246 ,  G06K9/46 ,  G01C21/02 ,  G06K9/40

Abstract: A miniaturized astrometric alignment sensor may detect stellar objects and targets from which both stellar and object tracking are performed. The sensor may search for one or more bright opens in an image captured by a camera of a space vehicle, and determine if the one or more bright objects is a genuine star or a secondary element. The sensor may also catalog entries of identified stars after three or more bright objects are determined to be genuine stars, and display the cataloged entries of the identified stars, wherein the cataloged entries comprises positional and velocity of the space vehicle in relation of the identified stars and a sensor body reference frame.

公开(公告)号：US10605900B2

公开(公告)日：2020-03-31

申请号：US15139925

申请日：2016-04-27

Applicant: University Corporation for Atmospheric Research ,  Montana State University ,  NASA Langley Research Center

Inventor： Scott M Spuler ,  Kevin S Repasky ,  Amin R Nehrir

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/484 ,  G01S17/10 ,  G01S17/95 ,  G01N21/53 ,  G01N21/17 ,  G01N21/47

Abstract: A shared optics and telescope, a filter, and a micropulse differential absorption LIDAR are provided, with methods to use the same. The shared optics and telescope includes a pair of axicon lenses, a secondary mirror, a primary mirror including an inner mirror portion and an outer mirror portion, the inner mirror portion operable to expand the deflected annular transmission beam, and the outer mirror portion operable to collect the return signal. The filter includes an etalon and a first filter. The micropulse differential absorption LIDAR includes first and second laser signals, a laser transmission beam selection switch, a first laser return signal switch, and a toggle timer.

公开(公告)号：US10604872B1

公开(公告)日：2020-03-31

申请号：US14199936

申请日：2014-03-06

Applicant: USA as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)

Inventor： Margaret M. Stackpoole ,  Jay D. Feldman ,  Donald T. Ellerby ,  Ethiraj Venkatapathy ,  Curt G. Wilkinson

IPC: D03D1/00 ,  B32B5/02 ,  B32B5/26

Abstract: A thermal protection system (TPS) for a space vehicle that undergoes partial or full ablation when the TPS is exposed to severe heating during entry into a planetary atmosphere. A first layer includes at least one of carbon, phenolic, silica, alumina and another oxide, low thermal conductivity fibers and yarns connecting two or more first layer sub-layers, is recession-resistant and has reduced porosity. A second layer has a smaller fiber fraction, reduced thermal conductivity and reduced density, and serves as a thermal insulator. The first layer may have partial or full insertion of a resin, or may have a surface densified, recession-resistant sub-layer. Values of a first subset of as many as eight environmental parameters can be used to characterize the space vehicle mission. A second subset of TPS parameters for the system is evaluated to identify whether an ablator system with these TPS values can survive the conditions associated with the first subset of environmental parameters.