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    • 54. 发明申请
    • PLANAR STRUCTURE FOR A TRIAXIAL GYROMETER
    • 三轴式超声波仪的平面结构
    • WO2012085456A2
    • 2012-06-28
    • PCT/FR2011053103
    • 2011-12-20
    • ONERA (OFF NAT AEROSPATIALE)ROLAND IAENNISMASSON STEVEDUCLOUX OLIVIER
    • ROLAND IAENNISMASSON STEVEDUCLOUX OLIVIER
    • G01C19/56
    • B81B3/0018G01C19/5656G01C19/5747
    • The invention relates to an inertial sensor (2) able to measure information relating to rotation in 3 orthogonal axes, comprising a support and a vibrating sensitive element (6) secured to the support; said sensitive element (6) having a deformable frame (10) which extends in a plane (X-Y) and at least two deformable projections (13, 14; 15, 16) which extend in the same plane (X-Y); characterized in that the inertial sensor extends in one and the same plane; the deformable frame (10) and said at least two deformable projections (13, 14; 15, 16) have a plane of symmetry parallel to the plane (X-Y); said at least two projections are rectilinear beams which have an approximately square cross section, are not collinear and are preferably approximately orthogonal to one another; each of said deformable beams (13, 14; 15, 16) being connected only by one of their ends to the deformable frame (10) at a location at which the amplitude of the primary vibration mode is at a maximum; and in that said sensor has a device for detecting each of the secondary vibration modes.
    • 本发明涉及能够测量与3个正交轴上的旋转有关的信息的惯性传感器(2),其包括支撑件和固定到支撑件的振动敏感元件(6) 所述敏感元件(6)具有在平面(X-Y)中延伸的可变形框架(10)和在同一平面(X-Y)中延伸的至少两个可变形凸起(13,14; 15,16)。 其特征在于,所述惯性传感器在同一个平面内延伸; 所述可变形框架(10)和所述至少两个可变形突起(13,14; 15,16)具有平行于所述平面(X-Y)的对称平面; 所述至少两个突出部是具有近似正方形横截面的直线梁,不共线并且优选地大致彼此正交; 所述可变形梁(13,14; 15,16)中的每一个在其主要振动模式的振幅最大的位置处仅通过其一端连接至所述可变形框架(10);其中, 并且所述传感器具有用于检测每个二次振动模式的装置。
    • 57. 发明申请
    • METHOD AND DEVICE FOR ESTIMATING THE ACOUSTIC PRESSURE IN A MOVING FLUID AND COMPUTER PROGRAM
    • 用于估计移动流体和计算机程序中的声压的方法和装置
    • WO2011045525A1
    • 2011-04-21
    • PCT/FR2010052157
    • 2010-10-12
    • ONERA (OFF NAT AEROSPATIALE)SIMON FRANKPIOT ESTELLE
    • SIMON FRANKPIOT ESTELLE
    • G01H9/00G01P5/26G01S17/58
    • G01P5/26G01P5/24
    • The invention relates to a method for estimating the acoustic pressure of a fluid generated by sound waves, including the following steps: seeding (40) the fluid with particles; measuring (42) at least one reference signal correlated with sound waves; for every direction of a reference mark: emitting (44) light beams by means of a source and receiving the diffused light beams, measuring (44) a speed signal of the particles in a predefined volume using laser Doppler velocimetry having fringes, calculating (58) the correlation between the measured speed signal and the measured reference signal, estimating (60) spatial components of the speed of the fluid generated by means of the sound waves; and calculating (64) the acoustic pressure in a macroscopic volume (36) using three-dimensional Euler equations and spatial components of the speed.
    • 本发明涉及一种用于估计由声波产生的流体的声压的方法,包括以下步骤:用流体接种(40)颗粒; 测量(42)与声波相关的至少一个参考信号; 对于参考标记的每个方向:通过源发射(44)光束并接收漫射光束,使用具有条纹的激光多普勒测速法测量(44)预定体积的颗粒的速度信号,计算(58) )测量的速度信号与测量的参考信号之间的相关性,估计(60)通过声波产生的流体的速度的空间分量; 以及使用三维欧拉方程和速度的空间分量来计算(64)宏观体积(36)中的声压。