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1. WO2021242310 - SELF ERECTING SUB-SURFACE ARRAY DEPLOYMENT MECHANISM WITH SHAPE MEMORY ALLOY

Publication Number WO/2021/242310
Publication Date 02.12.2021
International Application No. PCT/US2020/065222
International Filing Date 16.12.2020
IPC
G01V 1/20 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
16Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
20Arrangements of receiving elements, e.g. geophone pattern
G10K 11/00 2006.1
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
B63B 22/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
22Buoys
H01Q 1/08 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
08Means for collapsing antennas or parts thereof
F03G 7/06 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
06using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
G01V 1/38 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
CPC
B63B 22/003
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
22Buoys
003adapted for being launched from an aircraft or water vehicle;, e.g. with brakes deployed in the water
F03G 7/06145
F03G 7/0636
F03G 7/064
F03G 7/065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
06using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
065using a shape memory element
G01V 1/20
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
16Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
20Arrangements of receiving elements, e.g. geophone pattern
Applicants
  • RAYTHEON COMPANY [US]/[US]
Inventors
  • KOEHLER, Frederick, B.
  • CARLSTEN, Curtis, B.
  • LYMAN, Ward, D.
  • GAUDETTE, Jason, E.
Agents
  • PLATT, Jonathan A.
Priority Data
16/884,75527.05.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SELF ERECTING SUB-SURFACE ARRAY DEPLOYMENT MECHANISM WITH SHAPE MEMORY ALLOY
(FR) MÉCANISME DE DÉPLOIEMENT DE RÉSEAU DE SOUS-SURFACE EN ALLIAGE À MÉMOIRE DE FORME
Abstract
(EN) A deployment body for a sensor array includes at least one superelastic spring formed of a shape memory alloy (SMA) material that enables activation of the deployment body. The SMA spring is configured to expand from a stowed position in which the SMA spring is wound around a central hub of the deployment body to a deployed position in which the SMA spring is extended in a radially outward direction relative to the central hub. A stiffness of the SMA spring enables the SMA spring to hold cables of the sensor array and maintain a deployed shape of the sensor array, which may be a volumetric array. Using the SMA material is advantageous in that the material is tuned to maintain superelasticity based on at least one of an intended operating temperature and a desired expansion ratio of stowed to deployed diameter of the deployment body.
(FR) L'invention concerne un corps de déploiement pour un réseau de capteurs, ledit corps comprenant au moins un ressort super-élastique formé d'un matériau en alliage à mémoire de forme (SMA) qui permet l'activation du corps de déploiement. Le ressort en SMA est conçu pour s'étendre d'une position rangée dans laquelle le ressort en SMA est enroulé autour d'un moyeu central du corps de déploiement vers une position déployée dans laquelle le ressort en SMA est étendu dans une direction radialement vers l'extérieur par rapport au moyeu central. Une rigidité du ressort en SMA permet au ressort en SMA de maintenir des câbles du réseau de capteurs et de maintenir une forme déployée du réseau de capteurs, qui peut être un réseau volumétrique. L'utilisation du matériau en SMA est avantageuse en ce que le matériau est ajusté pour maintenir une super-élasticité sur la base d'au moins l'une d'une température de fonctionnement voulue et d'un taux d'expansion souhaité du diamètre rangé au diamètre déployé du corps de déploiement.
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