专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08661898B2 Vibrating structural gyroscope with quadrature control 失效
标题翻译：具有正交控制的振动结构陀螺仪
公开(公告)号：US08661898B2
公开(公告)日：2014-03-04
申请号：US12579098
申请日：2009-10-14
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01C19/00
CPC分类号： G01C19/5691
摘要： An apparatus and/or method that corrects for tuning errors in vibrating structure gyroscopes that are configured to be driven along a plurality of axes without the need for dedicated torque elements. The correction is accomplished by introducing a phase offset in the drive signal of one or more of the drive elements relative to other drive elements to minimize or reduce the quadrature signal. The tuning may be accomplished as a one time “set and forget” adjustment, as a manual adjustment performed at the discretion of the user, or as a closed loop active correction system. The technique improves the tuning of the resonator assembly, rather than merely compensating for the mistuning. Accordingly, for various embodiments of the invention, the destructive interference between the plurality of drive axes is reduced. Conservation of vibrational energy present in the resonator is thus enhanced, with less vibrational energy transferred to the support structure.
摘要翻译：校正被配置为沿着多个轴被驱动而不需要专用扭矩元件的振动结构陀螺仪中的调谐误差的装置和/或方法。通过在相对于其它驱动元件的一个或多个驱动元件的驱动信号中引入相位偏移来最小化或减小正交信号来实现校正。调谐可以作为一次“设置和忘记”调整来实现，作为由用户自行决定的手动调整，或作为闭环主动校正系统。该技术改进了谐振器组件的调谐，而不仅仅是补偿失谐。因此，对于本发明的各种实施例，减少了多个驱动轴之间的破坏性干扰。因此，谐振器中存在的振动能量的保持增强，较少的振动能量传递到支撑结构。

2. 发明授权

US07801694B1 Gyroscope with temperature compensation 有权
标题翻译：陀螺仪带温度补偿
公开(公告)号：US07801694B1
公开(公告)日：2010-09-21
申请号：US12240960
申请日：2008-09-29
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01C19/00 , G06F19/00
CPC分类号： G01C19/56 , G01C25/005
摘要： A method for compensating for bias and scale factor errors in vibrating structure gyroscopes. Certain embodiments utilize the functional relationship that bias and scale factor errors have with resonant frequency of vibration in the main vibrating body. Other embodiments utilize the functional relationships that other drive parameters of vibrating structure gyroscopes, such as drive voltage, have with bias and scale factor errors. The various methods may be used repeatedly during normal gyroscope operation in order to continually compensate for the bias and scale factor errors.
摘要翻译：一种用于补偿振动结构陀螺仪中偏置和比例因子误差的方法。某些实施例利用主振动体中偏置和比例因子误差具有振动谐振频率的功能关系。其他实施例利用振动结构陀螺仪的其它驱动参数（例如驱动电压）具有偏置和比例因子误差的功能关系。在正常陀螺仪操作期间可以重复使用各种方法，以便不断补偿偏差和比例因子误差。

3. 发明授权

US07617727B2 Vibrating inertial rate sensor utilizing split or skewed operational elements 失效
标题翻译：振动惯性速率传感器利用分裂或倾斜的操作元件
公开(公告)号：US07617727B2
公开(公告)日：2009-11-17
申请号：US11693214
申请日：2007-03-29
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01P9/04 , G01C19/00
CPC分类号： G01C19/56 , G01C19/5691
摘要： A vibrating inertial rate sensor has operational elements that define axes that are rotationally offset or “skewed” from a node or anti-node reference axis. The skew may be relative to separate node or anti-node reference axes, or take the form of an element that is “split” about the same node axis. Both the drive signal and the sense signal may be resolved from a common set of sensing elements. The drive elements may also operate on a skewed axis angle to rotationally offset the vibration pattern to affect active torquing of the gyroscope. Skewed drive elements may be combined with skewed or split elements on the same device. The skewed sensing scheme may be applied to vibratory systems having one or more node axes. The skewed drive scheme may be applied to vibratory systems having two or more node axes to affect active torquing.
摘要翻译：振动惯性速率传感器具有定义从节点或反节点参考轴旋转偏移或“偏斜”的轴的操作元件。偏斜可能相对于单独的节点或反节点参考轴，或者采用围绕相同节点轴“分裂”的元素的形式。驱动信号和感测信号都可以从一组共同的感测元件中解决。驱动元件还可以以偏斜的轴角度操作以旋转地偏移振动模式以影响陀螺仪的主动扭矩。倾斜的驱动元件可以与相同设备上的偏斜或分离元件组合。倾斜感测方案可以应用于具有一个或多个节点轴的振动系统。偏斜驱动方案可以应用于具有两个或多个节点轴的振动系统以影响主动扭矩。

4. 发明授权

US07526957B2 Vibrating inertial rate sensor utilizing skewed drive or sense elements 有权
标题翻译：振动惯性速率传感器利用偏移驱动或感应元件
公开(公告)号：US07526957B2
公开(公告)日：2009-05-05
申请号：US11640823
申请日：2006-12-18
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01P9/04 , G01C19/00
CPC分类号： G01C19/56 , G01C19/5691
摘要： A vibrating inertial rate sensor has sense elements that operate on axes that are rotationally skewed from a node reference axis, enabling both a rate sense and a drive sense determination. Alternatively, the skew may be applied to rotationally offset the drive elements from antinode reference axes to affect active torquing of the gyroscope. The skewed sensing scheme may be applied to vibratory systems having one or more node axes. The skewed drive scheme may be applied to vibratory systems having two or more node axes to affect active torquing.
摘要翻译：振动惯性速率传感器具有操作在从节点参考轴旋转偏斜的轴上的感测元件，能够实现速率感测和驱动感测定。或者，可以施加偏斜以将驱动元件从波腹参考轴旋转偏移以影响陀螺仪的主动扭矩。倾斜感测方案可以应用于具有一个或多个节点轴的振动系统。偏斜驱动方案可以应用于具有两个或多个节点轴的振动系统以影响主动扭矩。

5. 发明授权

US5270648A Single core triaxial flux-gate magnetometer 失效
标题翻译：单核三轴磁通门磁力计
公开(公告)号：US5270648A
公开(公告)日：1993-12-14
申请号：US565794
申请日：1990-08-10
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01R33/02 , G01R33/04
CPC分类号： G01R33/045 , G01R33/0206
摘要： A single core triaxial flux-gate magnetometer including a tall-toroidal core having a radial excitation winding, two orthogonal sets of axial or circumferential output windings, and an equatorial output winding oriented orthogonal to both axial output windings. The core is fabricated from a strip of magnetic tape material wrapped to form a toroid having a height approximately equal to its diameter. Each end of the strip is uniformly tapered along the top and bottom edges such that the tapered segments extend around an integer multiple of complete revolutions of the wrapping, the length of each tapered segment thereby being equal to the inner or outer circumference of the toroid or an integer multiple thereof. Leakage of the induced magnetic field at any point along the edge of the tapered segment will be generally proportional to the height of the tapered segment between its edges at that point, and will extend with equal magnitude in opposite directions from the strip parallel to the planar surface of the toroid and perpendicular to the edges. The tapered segments are oriented and aligned relative to one another in the wrapped toroid such that the induced magnetic field leakage is generally symmetrical and balanced across any diameter of the core.
摘要翻译：包括具有径向激励绕组的高环形铁芯，两个正交的轴向或周向输出绕组组以及与两个轴向输出绕组正交定向的赤道输出绕组的单核心三轴磁通门磁强计。芯由一条磁带材料制成，该条带被包裹以形成高度近似等于其直径的环形线圈。带材的每个端部沿着顶部和底部边缘均匀地锥形，使得锥形部分围绕包装的整个转数的整数倍延伸，每个锥形部分的长度因此等于环形线圈的内圆周或外圆周，其整数倍。沿着锥形段的边缘的任何点处的感应磁场的泄漏通常与该点处的边缘之间的锥形段的高度成比例，并且将沿与平行于平面的条带相反的方向以相反的方向延伸环形面的表面和垂直于边缘的表面。锥形段在包裹的环形面中相对于彼此定向和对准，使得感应磁场泄漏通常在芯的任何直径上对称和平衡。

6. 再颁专利

USRE43755E1 High Q angular rate sensing gyroscope 有权
标题翻译：高Q角速度传感陀螺仪
公开(公告)号：USRE43755E1
公开(公告)日：2012-10-23
申请号：US13078538
申请日：2000-09-14
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01P9/02
CPC分类号： G01C19/5642 , G01C19/567 , G01C19/5677
摘要： A structure and arrangement for improving the accuracy and efficiency of an angular rate sensing gyroscope is herein disclosed. Voltage pick-off conductors are applied to an area of the surface of a resonating element of an angular rate sensing gyroscope that is subject to substantially zero stress when the gyroscope is rotationally stationary. Actuator conductors are similarly applied to a resonating element at a location bounded by areas of the resonating element subject to substantially uniform levels of stress when the gyroscope is rotationally stationary. A method for improving the voltage response of a piezoelectric resonating element is also disclosed.
摘要翻译：本文公开了一种用于提高角速度感测陀螺仪的精度和效率的结构和装置。当陀螺仪旋转静止时，电压传感导体被施加到角速度感测陀螺仪的谐振元件的表面的区域，该角度传感陀螺仪的谐振元件受到基本上零的应力。当陀螺仪旋转静止时，致动器导体类似地应用于由谐振元件的区域限定的位置处的谐振元件，该谐振元件受到基本上均匀的应力水平的施加。还公开了一种用于改善压电谐振元件的电压响应的方法。

7. 发明申请

US20070052456A1 AGC circuit for the reduction of harmonics in the drive signal 有权
标题翻译： AGC电路用于降低驱动信号中的谐波
公开(公告)号：US20070052456A1
公开(公告)日：2007-03-08
申请号：US11182619
申请日：2005-07-15
申请人： William Watson
发明人： William Watson
IPC分类号： H03B19/00
CPC分类号： H03L7/06 , G01C19/5776
摘要： A drive circuit apparatus for use in generating a drive signal for energizing an actuator about a natural resonant frequency is disclosed. The circuit has a counter that generates a count sequence derived from a drive sense signal. Additionally, a demodulator is further coupled to the counter and generates a voltage level signal from the drive sense signal based on the count sequence. A digital to analog (D/A) converter is coupled to both the counter and demodulator. The D/A converter generates the drive signal in a substantially constant phase relationship with respect to the drive sense signal as derived from the voltage level signal and based on the count sequence. In addition, a method of generating a drive signal for energizing an actuator about a natural resonant frequency is provided.
摘要翻译：公开了一种驱动电路装置，用于产生用于使自动谐振频率的致动器通电的驱动信号。该电路具有产生从驱动检测信号导出的计数序列的计数器。此外，解调器还被耦合到计数器，并且基于计数序列从驱动检测信号生成电压电平信号。数模（D / A）转换器耦合到计数器和解调器。 D / A转换器根据电压电平信号并基于计数序列产生与驱动检测信号基本上恒定的相位关系的驱动信号。此外，提供了一种产生用于使自动谐振频率的致动器通电的驱动信号的方法。

8. 发明授权

US4628734A Angular rate sensor apparatus 失效
标题翻译：角速率传感器装置
公开(公告)号：US4628734A
公开(公告)日：1986-12-16
申请号：US614336
申请日：1984-05-25
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01C19/5607 , G01P15/10
CPC分类号： G01C19/5607
摘要： An angular rate sensor structure displaying high immunity to noise and feedback vibration is disclosed. Mounting elements (15) support a pair of matched vibratory piezoelectric bender elements (10) in symmetrical opposed alignment about a nodal axis (20). Each vibratory element includes a drive element (10A) and sense element (10B) connected to and for operative movement with the drive element. Resonance drive element (30) moves the vibratory elements (10) in a first mode of movement, in dirct opposition to one another about the nodal axis. The sensing members (10B) detect movement of the vibratory elements in directions other than in the first mode of movement resulting from application of external angular rate forces applied to the vibratory elements.
摘要翻译：公开了一种对噪声和反馈振动具有高抗扰性的角速率传感器结构。安装元件（15）围绕节点轴线（20）以对称的相对排列支撑一对匹配的振动压电弯曲元件（10）。每个振动元件包括驱动元件（10A）和感测元件（10B），连接到驱动元件并用于与驱动元件的操作运动。谐振驱动元件（30）以振动元件（10）在第一运动模式中以围绕着节点轴线彼此相对的方式移动。感测构件（10B）在施加施加到振动元件的外部角速度力的情况下，检测振动元件在除了第一移动模式之外的方向上的移动。

9. 发明授权

US4479098A Circuit for tracking and maintaining drive of actuator/mass at resonance 失效
标题翻译：用于跟踪和维持致动器/质量共振的驱动电路
公开(公告)号：US4479098A
公开(公告)日：1984-10-23
申请号：US280500
申请日：1981-07-06
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01C19/5642 , H03B5/30 , H03L7/00
CPC分类号： G01C19/5642
摘要： A drive circuit (10) for driving an actuator/mass (A) at its natural resonance and for maintaining the instantaneous output signal of the mass at a predetermined constant value over a wide range of dynamically changing resonant frequencies, is disclosed. Current sensing circuitry (C) detects an instantanous current passing through the actuator/mass (A). A compensation circuit (D) modifies the instantaneous sensed circuit signal to compensate for dynamically changing physical parameters of the actuator mass and for phase irregularities introduced into the sensed signal when the mass oscillates near its natural resonance. Automatic gain control circuitry (E) alters the actuator drive signal to maintain amplitude of the mass oscillation at a predetermined constant value. A drive circuit (B) performs the actual drive function in response to the feedback signal received from the automatic gain control and compensation circuitry.
摘要翻译：公开了一种驱动电路（10），用于在其自然谐振下驱动致动器/质量（A）并且用于在大范围的动态变化的谐振频率上将质量的瞬时输出信号保持在预定的恒定值。电流感测电路（C）检测通过致动器/质量（A）的瞬时电流。补偿电路（D）修改瞬时感测电路信号，以补偿致动器质量的动态变化的物理参数，以及当质量在其自然共振附近振荡时引入到感测信号中的相位不规则。自动增益控制电路（E）改变致动器驱动信号以将质量振荡的幅度保持在预定的恒定值。驱动电路（B）响应于从自动增益控制和补偿电路接收的反馈信号执行实际的驱动功能。

10. 再颁专利

USRE42731E1 High Q angular rate sensing gyroscope 有权
标题翻译：高Q角速度传感陀螺仪
公开(公告)号：USRE42731E1
公开(公告)日：2011-09-27
申请号：US11657988
申请日：2000-09-14
申请人： William S. Watson
发明人： William S. Watson
IPC分类号： G01P9/02
CPC分类号： G01C19/567 , G01C19/5642 , G01C19/5677
摘要： A structure and arrangement for improving the accuracy and efficiency of an angular rate sensing gyroscope is herein disclosed. Voltage pick-off conductors are applied to an area of the surface of a resonating element of an angular rate sensing gyroscope that is subject to substantially zero stress when the gyroscope is rotationally stationary. Actuator conductors are similarly applied to a resonating element at a location bounded by areas of the resonating element subject to substantially uniform levels of stress when the gyroscope is rotationally stationary. A method for improving the voltage response of a piezoelectric resonating element is also disclosed.
摘要翻译：本文公开了一种用于提高角速度感测陀螺仪的精度和效率的结构和装置。当陀螺仪旋转静止时，电压传感导体被施加到角速度感测陀螺仪的谐振元件的表面的区域，该角度传感陀螺仪的谐振元件受到基本上零的应力。当陀螺仪旋转静止时，致动器导体类似地应用于由谐振元件的区域限定的位置处的谐振元件，该谐振元件受到基本上均匀的应力水平的施加。还公开了一种用于改善压电谐振元件的电压响应的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式