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公开(公告)号：EP2472225A2
公开(公告)日：2012-07-04
申请号：EP11195146.3
申请日：2011-12-22
发明人： Fortier, Matthew D.
IPC分类号： G01C21/16
CPC分类号： G01C21/16 , B64G1/002 , B64G1/24 , B64G2001/245
摘要： Techniques are provided to determine an initial quaternion transform that is used to transform measurements received from accelerometer, rate sensor and inertial reference subsystems from a vehicle coordinate frame to an inertial navigation frame. Methods disclosed determine corrective angular rates to use as a feedback signal to rotate the quaternion transform to counter errors that result when transforming a gravity vector and an inertial reference vector (e.g., a magnetic North reference vector) that are being measured by the accelerometer and an inertial reference subsystems, respectively. The initial quaternion determination is performed during a time period when the only substantial acceleration on the vehicle is due to gravity. The initial quaternion can be used for processing various guidance, navigation and control functions.
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公开(公告)号：EP2135035A1
公开(公告)日：2009-12-23
申请号：EP08732831.6
申请日：2008-03-26
IPC分类号： G01C19/56
CPC分类号： G01C25/005 , G01C19/5614
摘要： Dithering mechanism and method for eliminating the effects of zero-rate bias in a rate sensor or gyroscope. Both continuously moving and indexing embodiments are disclosed. The mechanism includes a first part mounted in a fixed position centered about a dither axis perpendicular to the input axis of the gyroscope, a second part disposed coaxially of the first part and affixed to the sensing element of the gyroscope, and a plurality of piezoelectrically driven quartz flexure beams extending radially between the first and second parts for dithering the second part about the dither axis. In some embodiments, the dithering mechanism is formed separately from and affixed to the sensing element of the gyroscope, and in others it is formed integrally with the sensing element. In the indexing embodiments, radial arms and fixed stops limit movement of the mechanism between two fixed positions, and drive signals and holding potentials are applied alternately to dither the mechanism between the two positions and to hold it alternately in those positions during successive data acquisition periods.
摘要翻译： 用于消除速率传感器或陀螺仪中零速率偏置影响的抖动机制和方法。 公开了连续移动和分度实施例两者。 该机构包括安装在以垂直于陀螺仪的输入轴的抖动轴为中心的固定位置的第一部分，与第一部分同轴设置并固定到陀螺仪的感测元件的第二部分，以及多个压电驱动 石英挠曲梁在第一和第二部分之间径向延伸，用于使第二部分围绕抖动轴线抖动。 在一些实施例中，抖动机构与陀螺仪的感测元件分离形成并固定到陀螺仪的感测元件，而在另一些实施例中，其与传感元件整体形成。 在分度实施例中，径向臂和固定止动器限制机构在两个固定位置之间的移动，并且交替施加驱动信号和保持电位以对两个位置之间的机构进行抖动，并在连续数据采集周期期间将其交替保持在那些位置 。
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公开(公告)号：EP1269612B1
公开(公告)日：2009-05-06
申请号：EP01920809.9
申请日：2001-03-27
发明人： GODKIN, Mikhail
IPC分类号： H02K41/035
CPC分类号： H02K41/0356 , G11B21/083
摘要： An actuator is provided in which one or more separate compensating coils are employed to alter the distribution of the magnetic flux density in the air gap to produce a substantially constant force throughout the stroke; and in which current in the separate compensating coils can be adjusted with the stroke using separate power supplies and position feedback.
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4.发明公开Inertial measurement system and method with sensor bias cancellation 有权传感器系统和Verfahren zur Korrektursystemabhängiger传感器
公开(公告)号：EP1972892A2
公开(公告)日：2008-09-24
申请号：EP08250891.2
申请日：2008-03-14
发明人： Shirasaka, Ichiro , Jaffe, Randall
IPC分类号： G01C19/00
CPC分类号： G01C19/00 , G01C19/38 , G01C19/5776 , G01C21/16 , G01C25/005
摘要： Inertial measurement system and method in which a gyroscope is periodically dithered about an axis perpendicular to its input axis, a signal from the gyroscope is delayed to provide a delayed signal which lags the gyroscope signal by one-half of the dithering period, and the delayed signal and the signal from the gyroscope are combined to provide an output signal from which the bias has been cancelled.
摘要翻译： 惯性测量系统和方法，其中陀螺仪围绕垂直于其输入轴的轴周期性地抖动，来自陀螺仪的信号被延迟以提供滞后于陀螺仪信号的延迟信号一半的抖动周期，并且延迟 信号和来自陀螺仪的信号被组合以提供偏置被消除的输出信号。
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6.发明公开Distributed mass hemispherical resonator gyroscope 审中-公开HemisphärischesResonatorgyroskop mit verteilten Massen
公开(公告)号：EP2463623A2
公开(公告)日：2012-06-13
申请号：EP11193233.1
申请日：2011-12-13
发明人： Painter, Chris
IPC分类号： G01C19/5691
CPC分类号： G01C19/5691 , Y10T29/49002
摘要： A micro-scale hemispherical resonator gyroscope includes a hemispherical resonator with a plurality of masses positioned around the periphery of the hemispherical resonator. At least some of the masses may be made of a heavy metal, such as tungsten, gold, platinum, or lead, and may be positioned at points of maximum deflection or velocity of the resonator. The hemispherical resonator may have a 2 mm diameter and a ring down time of at least 500 seconds.
摘要翻译： 微尺度半球谐振器陀螺仪包括具有围绕半球谐振器的周边定位的多个质量的半球谐振器。 至少一些质量块可以由诸如钨，金，铂或铅的重金属制成，并且可以位于谐振器的最大偏转或速度的点处。 该半球形谐振器可以具有2mm直径和至少500秒的减振时间。
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公开(公告)号：EP1174684B1
公开(公告)日：2010-06-02
申请号：EP01305192.5
申请日：2001-06-14
IPC分类号： G01C19/56
CPC分类号： G01C19/5607 , H03H9/2494 , Y10S29/901 , Y10T29/42 , Y10T29/49005 , Y10T29/49156
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8.发明公开Inertial rate sensor and method with built-in testing 审中-公开Trägheitsverhältnissensorund Verfahren mit integriertem Test
公开(公告)号：EP1921418A2
公开(公告)日：2008-05-14
申请号：EP08000728.9
申请日：2001-08-17
发明人： Hobbs, Larry P. , Bhardwaj, Pradeep
IPC分类号： G01C19/56
CPC分类号： G01C19/5607
摘要： Inertial rate sensor and method for sensing inertial rate whereby the inertial rate sensor comprises a vibratory rate sensing element, a drive circuit for applying a drive signal to the rate sensing element, a pickup circuit coupled to the rate sensing element for providing a rate signal corresponding to movement of the rate sensing element, a memory in which compensation values are stored in the form of digital data, means for converting data retrieved from the memory to analog compensation signals, means for adjusting the rate signal in accordance with the compensation signals, a temperature sensor for providing an analog temperature signal, means for convert-ing the analog temperature signal to a digital signal for use in addressing the memory to retrieve temperature compensation data.
摘要翻译： 用于感测惯性速率的惯性速率传感器和方法，其中惯性速率传感器包括振动速率感测元件，用于向速率感测元件施加驱动信号的驱动电路，耦合到速率感测元件的拾取电路，用于提供相应的速率信号 速率检测元件的移动，其中以数字数据的形式存储补偿值的存储器，用于将从存储器检索的数据转换为模拟补偿信号的装置，用于根据补偿信号调整速率信号的装置， 用于提供模拟温度信号的温度传感器，用于将模拟温度信号转换为用于寻址存储器以获取温度补偿数据的数字信号的装置。
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公开(公告)号：EP2385753A3
公开(公告)日：2018-02-28
申请号：EP11163967.0
申请日：2011-04-27
IPC分类号： H05K7/20
CPC分类号： H05K7/209 , H05K7/1471
摘要： Solid state switching device having a heatsink, a solid state switching element in heat conductive relationship with the heatsink, and an enclosure having ventilation openings adjacent to the heatsink through which air can flow to remove heat from the heatsink. In some disclosed embodiments, the heatsink has fins and ducts aligned with ventilation openings in the enclosure for removing heat by radiation and convection. In others, the heatsink is a generally planar baseplate, with ventilation openings in a side wall of the enclosure next to the baseplate for removing heat from the device. Spacers project laterally from the devices and permit a plurality of the devices to mounted side-by-side with space between the devices through which air can flow.
摘要翻译： 固态开关装置具有散热器，与散热器成导热关系的固态开关元件以及具有通风开口的外壳，所述通风开口邻近散热器，空气可通过所述通风开口从散热器移除以散发热量。 在一些公开的实施例中，散热器具有与外壳中的通风口对齐的翅片和管道，用于通过辐射和对流来移除热量。 在其他情况下，散热器是一个大致平面的底板，在底板旁边的外壳侧壁上有通风口，用于从设备中去除热量。 间隔件从装置侧向突出，并且允许多个装置并排安装，空气可以流过装置之间的空间。
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公开(公告)号：EP2005199B1
公开(公告)日：2016-06-29
申请号：EP07753803.1
申请日：2007-03-23
IPC分类号： G01C19/5776 , G01C25/00
CPC分类号： G01C25/00 , G01C19/5776
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