公开(公告)号：US20170301332A1

公开(公告)日：2017-10-19

申请号：US15514373

申请日：2015-09-25

申请人： THALES

发明人： Yves LAGIER ,  Raphaël LARDAT ,  Daniel ANDREIS

IPC分类号： G10K11/00

CPC分类号： G10K11/008

摘要： An omnidirectional antenna to equip a sonar, the antenna centered around a longitudinal axis and comprises an assembly of emission rings stacked along the longitudinal axis, each emission ring formed around the longitudinal axis. The emission rings are assembled in groups of ring, the antenna comprises at least two groups of rings and each group of rings comprises at least two rings, the inter-ring spacings between the rings of one and the same group and the inter-group spacings between two successive groups of rings chosen so as to optimize the emission bandwidth and the sound level.

公开(公告)号：US20210389440A1

公开(公告)日：2021-12-16

申请号：US17287097

申请日：2019-10-16

申请人： THALES

发明人： Yves LAGIER ,  Raphaël LARDAT ,  Jérémie TODESCO

IPC分类号： G01S7/534 ,  G01S7/52 ,  B06B1/06

摘要： An acoustic antenna intended to equip a sonar, the antenna being centred around a first longitudinal axis and includes at least a first assembly of at least two transducers and a second assembly of at least two transducers stacked along the longitudinal axis, each transducer having at least a radial mode having a resonance frequency, referred to as the radial frequency, and a cavity mode having a resonance frequency, referred to as the cavity frequency, wherein the transducers of the first assembly are configured to transmit sound waves in a first continuous frequency band extending at least between the cavity and radial frequencies of the transducers of the first assembly and the transducers of the second assembly are configured to transmit sound waves in a second continuous frequency band extending at least between the cavity and radial frequencies of the transducers of the second assembly, in that the cavity frequency of a transducer of the second assembly is equal to the radial frequency of a transducer of the first assembly plus or minus (fr1−fc1)/10, fr1 being the radial frequency of the transducer of the first assembly and fc1 being the cavity frequency of the transducers of the first assembly and wherein the transducers of the second assembly are positioned between the transducers of the first assembly and in that no transducer of the first assembly is positioned between the transducers of the second assembly.

公开(公告)号：US20160327640A1

公开(公告)日：2016-11-10

申请号：US15106169

申请日：2014-12-22

申请人： THALES

发明人： François SEITE ,  Didier BILLON ,  Eric SERNIT ,  Raphaël LARDAT ,  Yves LAGIER ,  Daniel ANDREIS

IPC分类号： G01S7/521 ,  G01S15/88 ,  G01S7/00

CPC分类号： G01S7/521 ,  G01S7/003 ,  G01S15/88 ,  G10K11/008

摘要： A compact omnidirectional antenna for dipping sonar comprises multiple elementary transmission rings formed around a longitudinal axis of the antenna and multiple hydrophones distributed around the longitudinal axis, the antenna intended to be dipped in water, the hydrophones separate from the elementary transmission rings, the hydrophones and the elementary transmission rings fixed in the antenna. The elementary transmission rings and the hydrophones are interlinked along one and the same height (H) measured along the longitudinal axis.

摘要翻译： 用于浸没声纳的紧凑型全向天线包括围绕天线的纵向轴线形成的多个基本传输环和围绕纵向轴线分布的多个水听器，该天线旨在浸入水中，水听器与基本传输环分离，水听器和 基本传输环固定在天线中。 基本传输环和水听器沿着沿纵向轴测量的同一高度（H）互连。