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    • 1. 发明授权
    • Vibratory angular rate sensing system
    • 振动角速度检测系统
    • US4538461A
    • 1985-09-03
    • US572782
    • 1984-01-23
    • William F. JuptnerDavid F. MacyJuergen H. Staudte
    • William F. JuptnerDavid F. MacyJuergen H. Staudte
    • G01C19/5607G01P9/04
    • G01C19/5607
    • A vibratory angular rate sensing system may have one pair of tines forming an angle of about 60 degrees, resulting from the crystalline orientation of the Z-cut quartz wafer of the system. In one configuration each of the tines is provided with a mass offset from the axis of the associated tine, a pivot extends through the plane of symmetry of the tines and may be connected to a dummy reaction mass. The resonant system is suspended from a mounting frame by a pair of suspension bridges. A second embodiment of the invention features two groups of tines, each group including two pairs of tines arranged in the form of a cross. Again, an offset mass is associated with the free end of each tine and each group of tines is secured to its frame by a suspension bridge.
    • 振动角速率感测系统可以具有由系统的Z切割石英晶片的晶体取向产生的约一对尖角,形成约60度的角度。 在一种配置中,每个尖齿具有从相关齿的轴线偏移的质量,枢轴延伸穿过齿的对称平面,并且可连接到虚拟反作用物质。 谐振系统由一对吊桥悬挂在安装框架上。 本发明的第二实施例具有两组尖齿,每组包括以十字形形式布置的两对尖齿。 再次,偏移质量与每个齿的自由端相关联,并且每组尖齿通过吊桥固定到其框架。
    • 2. 发明授权
    • Single ended tuning fork inertial sensor and method
    • 单端音叉惯性传感器及方法
    • US5522249A
    • 1996-06-04
    • US273656
    • 1994-07-12
    • David F. Macy
    • David F. Macy
    • G01M1/10G01C19/5607G01P9/04
    • G01C19/5607
    • Single ended tuning fork inertial sensor having a housing and a single ended tuning fork of a quartz-like material of a predetermined thickness, the tuning fork has first and second tines lying in a plane and having an axis of symmetry and has a body formed integral with said first and second tines. The body is rigidly secured to the housing. The tines have a rectangular cross section and have a width which is different from the thickness. The body has a stem formed therein which has a width less than that of the body. Drive electrodes are secured to the tines. An oscillatory frequency is supplied to the above drive electrodes to excite the tines in a drive mode and in the presence of an axial angular rate to cause the tines to operate in a pickup mode which is substantially separated in frequency from the drive mode. The electrode patterns are laser trimmed in order to reduce quadrature offset.
    • 单端音叉惯性传感器具有壳体和具有预定厚度的石英类材料的单端音叉,音叉具有位于平面中的第一和第二尖齿,具有对称轴线并且具有整体形成的主体 带有第一和第二个尖齿。 主体刚性地固定在外壳上。 尖齿具有矩形横截面并且具有与厚度不同的宽度。 主体具有形成在其中的杆,其宽度小于身体的宽度。 驱动电极固定在齿上。 将振荡频率提供给上述驱动电极以在驱动模式下并且在存在轴向角速率的情况下激发尖齿,以使得尖齿以在频率上与驱动模式基本上分离的拾取模式中操作。 为了减少正交偏移,电极图案被激光修整。
    • 3. 发明授权
    • Rotation rate sensor with built in test circuit
    • 旋转速率传感器内置测试电路
    • US5426970A
    • 1995-06-27
    • US100759
    • 1993-08-02
    • Alvin V. FloridaPiyush K. GuptaDavid F. MacyHarold D. Morris
    • Alvin V. FloridaPiyush K. GuptaDavid F. MacyHarold D. Morris
    • G01C19/02G01C19/56G01C19/5607G01P9/04G01P21/00G01P15/09H01L41/107
    • G01C19/5607G01P21/00
    • A rotation rate sensor which employs a built-in (i.e. internal) test circuit. The rotation rate sensor includes a piezoelectric structure. Deposited on the piezoelectric structure are at least two pickup high and two pickup low electrodes. A pickup circuit is coupled to the pickup high and pickup low electrodes. During a normal mode of operation, the piezoelectric structure is subject to a rotation about one of its axis. In response, the pickup circuit generates a rate signal which corresponds to the rotation rate of the piezoelectric structure. The test circuit is coupled to the pickup low electrodes. During a test mode of operation, the piezoelectric structure is also subject to a rotation about the axis. But, the test circuit generates at the same time a test signal which is provided to the pickup low electrodes and which corresponds to a pseudo rate of rotation. In response, the pickup circuit generates a rate signal which corresponds to the sum of the actual rate of rotation of the piezoelectric material plus the pseudo rate of rotation.
    • 采用内置(即内部)测试电路的旋转速率传感器。 旋转速率传感器包括压电结构。 沉积在压电结构上的是至少两个拾取高和两个拾取低电极。 拾取电路耦合到拾取器高和拾取低电极。 在正常操作模式期间,压电结构经受其轴线之一的旋转。 作为响应,拾取电路产生对应于压电结构的旋转速率的速率信号。 测试电路耦合到拾取器低电极。 在测试操作模式期间,压电结构也绕轴线旋转。 但是,测试电路同时产生提供给拾取低电极并且对应于伪旋转速率的测试信号。 作为响应,拾取电路产生对应于压电材料的实际转速与伪旋转速率之和的速率信号。
    • 4. 发明授权
    • Single ended tuning fork inertial sensor and method
    • 单端音叉惯性传感器及方法
    • US5343749A
    • 1994-09-06
    • US152816
    • 1993-11-15
    • David F. Macy
    • David F. Macy
    • G01M1/10G01C19/5607G01P9/04
    • G01C19/5607
    • Single ended tuning fork inertial sensor having a housing and a single ended tuning fork of a quartz-like material of a predetermined thickness, the tuning fork has first and second tines lying in a plane and having an axis of symmetry and has a body formed integral with said first and second tines. The body is rigidly secured to the housing. The tines have a rectangular cross section and have a width which is different from the thickness. The body has a stem formed therein which has a width less than that of the body. Drive electrodes are secured to the tines. An oscillatory frequency is supplied to the above drive electrodes to excite the tines in a drive mode and in the presence of an axial angular rate to cause the tines to operate in a pickup mode which is substantially separated in frequency from the drive mode.
    • 单端音叉惯性传感器具有壳体和具有预定厚度的石英类材料的单端音叉,音叉具有位于平面中的第一和第二尖齿,具有对称轴线并且具有整体形成的主体 带有第一和第二个尖齿。 主体刚性地固定在外壳上。 尖齿具有矩形横截面并且具有与厚度不同的宽度。 主体具有形成在其中的杆,其宽度小于身体的宽度。 驱动电极固定在齿上。 将振荡频率提供给上述驱动电极以在驱动模式下并且在存在轴向角速率的情况下激发尖齿,以使得尖齿以在频率上与驱动模式基本上分离的拾取模式中操作。
    • 5. 发明授权
    • Antenna system for satellite communication
    • 卫星通信天线系统
    • US08890757B1
    • 2014-11-18
    • US13184298
    • 2011-07-15
    • David F. MacyTimothy E. MacySteven R. MillsJohn E. Fenick
    • David F. MacyTimothy E. MacySteven R. MillsJohn E. Fenick
    • H01Q3/08H01Q1/32
    • H01Q1/32H01Q1/125H01Q3/08H01Q19/04H01Q19/30
    • An antenna system for satellite communication, mounted on a moving platform, includes an antenna assembly, a control and display unit, and an antenna steering unit. The antenna assembly includes mounted on an antenna mast. The antenna steering unit includes a support housing, a rotary joint comprising a BNC connector, an electronic magnetic compass. an angular velocity-sensing gyroscope, a global positioning system receiver, a signal processor and a motor. The direction of the antenna's azimuth axis is determined based on the heading of the moving platform determined by the signal processor. In one embodiment, the director elements, the antenna mast and the azimuth mast are all articulated on flexible joints comprising a cable and spring mechanism allowing the director elements to fold toward the antenna mast and allowing the antenna assembly to fold toward the azimuth mast for stowing.
    • 安装在移动平台上的用于卫星通信的天线系统包括天线组件,控制和显示单元以及天线转向单元。 天线组件包括安装在天线杆上。 天线转向单元包括支撑壳体,包括BNC连接器,电子磁罗盘的旋转接头。 角速度感测陀螺仪,全球定位系统接收机,信号处理器和电动机。 基于由信号处理器确定的移动平台的方向来确定天线方位角的方向。 在一个实施例中,引导元件,天线杆和方位桅杆全部铰接在柔性接头上,包括电缆和弹簧机构,允许引导元件朝向天线桅杆折叠,并允许天线组件朝向方位桅杆折叠以进行收起 。
    • 6. 发明授权
    • Single ended tuning fork internal sensor and method
    • 单端音叉惯性传感器及方法
    • US5408876A
    • 1995-04-25
    • US152822
    • 1993-11-15
    • David F. Macy
    • David F. Macy
    • G01M1/10G01C19/5607G01P9/04
    • G01C19/5607
    • Single ended tuning fork inertial sensor having a housing and a single ended tuning fork of a quartz-like material of a predetermined thickness, the tuning fork has first and second tines lying in a plane and having an axis of symmetry and has a body formed integral with said first and second tines. The body is rigidly secured to the housing. The tines have a rectangular cross section and have a width which is different from the thickness. The body has a stem formed therein which has a width less than that of the body. Drive electrodes are secured to the tines. An oscillatory frequency is supplied to the above drive electrodes to excite the tines in a drive mode and in the presence of an axial angular rate to cause the tines to operate in a pickup mode which is substantially separated in frequency from the drive mode. The width and thickness of the tines are chosen so as to provide a frequency difference between the frequency of the pickup mode and the frequency of the drive mode, and width and length of the stem are chosen so as to a reduce the frequency difference.
    • 单端音叉惯性传感器具有壳体和具有预定厚度的石英类材料的单端音叉,音叉具有位于平面中的第一和第二尖齿,具有对称轴线并且具有整体形成的主体 带有第一和第二个尖齿。 主体刚性地固定在外壳上。 尖齿具有矩形横截面并且具有与厚度不同的宽度。 主体具有形成在其中的杆,其宽度小于身体的宽度。 驱动电极固定在齿上。 将振荡频率提供给上述驱动电极以在驱动模式下并且在存在轴向角速率的情况下激发尖齿,以使得尖齿以在频率上与驱动模式基本上分离的拾取模式中操作。 选择齿的宽度和厚度以便提供拾取模式的频率和驱动模式的频率之间的频率差,并且选择杆的宽度和长度以减小频率差。
    • 7. 再颁专利
    • Vibratory angular rate sensing system
    • 振动角速度检测系统
    • USRE33479E
    • 1990-12-11
    • US147621
    • 1988-01-22
    • William F. JuptnerDavid F. MacyJuergen H. Staudte
    • William F. JuptnerDavid F. MacyJuergen H. Staudte
    • G01C19/56G01P9/04
    • G01C19/5607
    • .[.A vibratory angular rate sensing system may have one pair of tines forming an angle of about 60 degrees, resulting from the crystalline orientation of the Z-cut quartz wafer of the system. In one configuration each of the tines is provided with a mass offset from the axis of the associated tine, a pivot extends through the plane of symmery of the tines and may be connected to a dummy reaction mass. The resonant system is suspended from a mounting frame by a pair of suspension bridges. A second embodiment of the invention features two groups of tines, each group including two pairs of tines arranged in the form of a cross. Again, an offset mass is associated with the free end of each tine and each group of tines is secured to its frame by a suspension bridge..]..Iadd.Vibratory angular rate sensing system having a support structure and a driven fork lying in a plane and having an axis of symmetry. The fork has first and second spaced apart tines. A mouting is provided for mounting said fork on said support structure. Energy is coupled into the driven fork to cause vibratory motion of the tines of the driven fork in the plane of the driven fork. A torsionally resonant member is coupled to the fork. A pickoff is provided which is isolated from the support structure for sensing motion of the torsionally resonant member to provide a measure of the input angular rate about the axis of symmetry of the driven fork. .Iaddend.
    • 8. 发明授权
    • Angular rate sensor system
    • 角速率传感器系统
    • US4654663A
    • 1987-03-31
    • US321964
    • 1981-11-16
    • Evert C. AlsenzWilliam F. JuptnerDavid F. Macy
    • Evert C. AlsenzWilliam F. JuptnerDavid F. Macy
    • G01C19/5607C08C19/00
    • G01C19/5607
    • An angular rate sensor system is disclosed, consisting of a balanced resonant sensor. The sensor consists of a tuning fork of a piezoelectric material, preferably of quartz. The tines of the tuning fork are caused to vibrate electromechanically, for example, by impressing an alternating voltage on a pair of electrodes on each tine. This will cause the tines to vibrate. Any component of angular motion around the axis of the sensor causes a cyclic deflection of the tines at right angles to the normal driven vibration of the tines. If the rotational input to the handle of the sensor is applied through a torsion element, the resulting tine deflection is directed to cyclically rotate the entire sensor along the input/output axis. This deflection can be used for changing the capacitance of a capacitance bridge, or for generating an electric signal, due to the piezoelectric effect resulting from the deflection. Finally, the output signal may consist of a frequency-modulated signal or an optical pick-up may be used. The system may take various forms, including one, two, four, or eight tuning forks forming a unitary system.
    • 公开了一种由平衡谐振传感器组成的角速率传感器系统。 传感器由压电材料的音叉组成,最好是石英。 音叉的齿通过机械地振动,例如通过在每个齿上的一对电极上施加交流电压。 这将导致尖齿振动。 围绕传感器轴线的角运动的任何分量导致尖齿与尖齿的正常驱动振动成直角的循环偏转。 如果通过扭转元件施加传感器手柄的旋转输入,则所得到的齿偏转被引导以使整个传感器沿输入/输出轴线循环旋转。 由于偏转产生的压电效应,该偏转可以用于改变电容桥的电容或用于产生电信号。 最后,输出信号可以由调频信号组成,也可以使用光学拾取器。 该系统可以采取各种形式,包括形成单一系统的一个,两个,四个或八个调谐叉。
    • 9. 发明授权
    • Antenna system for satellite communication
    • 卫星通信天线系统
    • US08259020B1
    • 2012-09-04
    • US12533992
    • 2009-07-31
    • David F. MacyTimothy E. MacySteven R. Mills
    • David F. MacyTimothy E. MacySteven R. Mills
    • H01Q3/08H01Q1/32
    • H01Q1/32H01Q1/125H01Q3/08H01Q19/04H01Q19/30
    • An antenna system for satellite communication, mounted on a moving platform, includes an antenna assembly, a control and display unit, and an antenna steering unit. The antenna assembly includes a dipole driven element assembly and at least one director element mounted on an antenna mast. The antenna steering unit includes a support housing, a rotary joint comprising a BNC connector, an electronic magnetic compass. an angular velocity-sensing gyroscope, a global positioning system receiver, a signal processor and a motor. The direction of the antenna's azimuth axis is determined based on the heading of the moving platform determined by the signal processor. In one embodiment, the director elements, the antenna mast and the azimuth mast are all articulated on flexible joints comprising a cable and spring mechanism allowing the director elements to fold toward the antenna mast and allowing the antenna assembly to fold toward the azimuth mast for stowing.
    • 安装在移动平台上的用于卫星通信的天线系统包括天线组件,控制和显示单元以及天线转向单元。 天线组件包括偶极驱动元件组件和安装在天线桅杆上的至少一个导向器元件。 天线转向单元包括支撑壳体,包括BNC连接器,电子磁罗盘的旋转接头。 角速度感测陀螺仪,全球定位系统接收机,信号处理器和电动机。 基于由信号处理器确定的移动平台的方向来确定天线方位角的方向。 在一个实施例中,引导元件,天线杆和方位桅杆都铰接在柔性接头上,包括电缆和弹簧机构,允许引导元件朝向天线桅杆折叠,并允许天线组件朝向方位桅杆折叠以进行收起 。
    • 10. 发明授权
    • Vibratory linear acceleration and angular rate sensing system
    • 振动线性加速度和角速度检测系统
    • US4930351A
    • 1990-06-05
    • US172380
    • 1988-03-24
    • David F. MacyEvert C. Alsenz
    • David F. MacyEvert C. Alsenz
    • G01C19/5607
    • G01C19/5607
    • An inertial sensing system includes a geometric structure having several independent mechanically resonant modes of vibration such that when the structure is subjected to outside inertial motions that are to be sensed, a driven mode of vibration will couple energy in a specific manner into a pickup mode. The driven mode serves as a reference motion. The system measures angular rotation rate by sensing the vibrations in the pickup mode caused by the action of the Coriolis effect on the balanced driven mode which couples energy into the pickup mode. The system includes a portion of the geometric structure that is subject to strain caused by linear acceleration in one direction. The strain introduces an imbalance in the driven mode which causes energy to be coupled to the pickup mode of vibration in a nominally linear manner. A sensing circuit is provided to sense the amount of energy coupled into the pickup system as a measure of applied angular rotation and applied acceleration. The coupling of energy into the pickup caused by linear acceleration is orthogonal to the coupling of energy caused by angular rotation rate, and the effects of the two sources of coupled energy can be separated by the system circuitry such that independent determination of the two types of input motion is realized. The sensing system is preferably made of a material such as crystalline quartz that is mechanically stable and is also piezoelectric so that the driving and sensing can be accomplished by piezoelectric techniques.
    • 惯性感测系统包括具有几个独立的机械共振振动模式的几何结构,使得当该结构受到要被感测的外部惯性运动时,驱动的振动模式将以特定方式将能量耦合到拾取模式中。 驱动模式用作参考运动。 该系统通过感测科里奥利效应对将能量耦合到拾取模式的平衡驱动模式引起的拾取模式中的振动来测量角度旋转速率。 该系统包括由一个方向上的线性加速引起的应力的几何结构的一部分。 该应变引入了驱动模式中的不平衡,其使能量以标称线性的方式耦合到振动的拾取模式。 提供感测电路以感测耦合到拾取系统中的能量的量作为所施加的角旋转和施加的加速度的量度。 由线性加速度引起的能量到拾取器中的耦合与由角度旋转速率引起的能量的耦合正交,并且耦合能量的两个源的影响可以由系统电路分离,使得两种类型的 实现输入运动。 感测系统优选地由诸如结晶石英的材料制成,其是机械稳定的并且也是压电的,使得可以通过压电技术来实现驱动和感测。