公开(公告)号：US10830589B2

公开(公告)日：2020-11-10

申请号：US16258881

申请日：2019-01-28

申请人： The Board of Trustees of Western Michigan University

发明人： Brian G. Krug ,  Johnson A. Asumadu

IPC分类号： G01C19/24 ,  B82Y30/00 ,  H01F1/44 ,  G01C19/00 ,  H01F7/20 ,  G01D5/20 ,  G01R19/165 ,  H01F1/00 ,  B82Y25/00

摘要： A gyroscopic detection system utilizes magnetic nanoparticles that are suspended in a solution and exposed to a rotating magnetic field. The nanoparticles experience angular deviation from their axes if an external force is applied to the system. Solution composition and oscillation frequency may be varied to optimize the gyroscopic feedback.

公开(公告)号：US10597172B2

公开(公告)日：2020-03-24

申请号：US15760540

申请日：2016-07-18

申请人： TSINGHUA UNIVERSITY ,  BEIJING U-PRECISION TECH CO., LTD.

发明人： Yu Zhu ,  Anlin Chen ,  Ming Zhang ,  Kaiming Yang ,  Rong Cheng

IPC分类号： G01C19/30 ,  G01C19/46 ,  B64G1/28 ,  H02K16/04 ,  H02K41/03 ,  H02K16/00 ,  G01C19/24 ,  H02K5/128

摘要： Disclosed is a magnetic-fluid momentum sphere, which is used for satellite attitude adjustment. The magnetic-fluid momentum sphere comprises stators and a spherical shell. The stators are classified into three groups, axes of the three groups of stators are orthogonal to each other, each group comprises two stators arranged symmetrically about the center of the spherical shell, and the inner surfaces of the stators are spherical surfaces. The spherical shell is formed by combining two hemispherical shells, the material of the spherical shell is a non-ferromagnetic material, the inner surfaces of the stators closely adhere to the outer surface of the spherical shell, there is no relative movement between the spherical shell and the inner surfaces of the stators, and the spherical shell is filled with magnetic fluid. The magnetic-fluid momentum sphere achieves a small size and mass, low costs, and small coupling among the axes.

公开(公告)号：US5719335A

公开(公告)日：1998-02-17

申请号：US639028

申请日：1996-04-16

申请人： Takafumi Nakaishi ,  Takeshi Hojo ,  Takao Murakoshi ,  Isao Masuzawa ,  Shigeru Nakamura ,  Kazuaki Tani

发明人： Takafumi Nakaishi ,  Takeshi Hojo ,  Takao Murakoshi ,  Isao Masuzawa ,  Shigeru Nakamura ,  Kazuaki Tani

IPC分类号： G01C19/24 ,  G01P15/14 ,  G01P15/18

CPC分类号： G01C19/24 ,  G01P15/14 ,  G01P15/18 ,  Y10T29/49002 ,  Y10T29/49009 ,  Y10T29/4902 ,  Y10T74/1275

摘要： An acceleration detection gyro apparatus is of the electrostatic supporting type. This gyro apparatus can be made inexpensive, long in life, excellent in durability and can be applied to a wide variety of fields. A gyro rotor (20) is supported relative to a gyro case (21) by an electrostatic supporting force in a non-contact fashion and rotated about the spin axis along the Z axis by a rotor driving system. The gyro rotor (20) is disk-shaped and constructed by forming metal thin film electrodes on both surfaces of a plate member made of preferably an insulating material. The gyro apparatus includes a slave control system for slaving a displacement of the gyro rotor (20) relative to the gyro case (21) in the Z-axis direction (spin axis direction) and a central position control system for slaving a displacement of the gyro rotor (20) in the X-axis and Y-axis directions.

摘要翻译： 加速度检测陀螺仪装置为静电支持型。 该陀螺仪可以制造成价廉，使用寿命长，耐久性优异，可应用于各种领域。 陀螺转子（20）通过静电支撑力以非接触的方式相对于陀螺仪壳体（21）支撑，并通过转子驱动系统沿Z轴绕旋转轴线旋转。 陀螺转子（20）是圆盘形的，通过在由优选绝缘材料制成的板件的两个表面上形成金属薄膜电极而构成。 陀螺仪装置包括：从动控制系统，用于在Z轴方向（旋转轴线方向）上相对于陀螺仪壳体（21）排出陀螺转子（20）的位移;以及中心位置控制系统，用于使 陀螺转子（20）在X轴方向和Y轴方向上。

公开(公告)号：US4570507A

公开(公告)日：1986-02-18

申请号：US524614

申请日：1983-08-19

申请人： Joe S. Hunter ,  Lawrence J. Little

发明人： Joe S. Hunter ,  Lawrence J. Little

IPC分类号： G01C19/20 ,  G01C19/26 ,  G01C19/08 ,  G01C19/24

CPC分类号： G01C19/20 ,  G01C19/26 ,  Y10T74/1204 ,  Y10T74/1207 ,  Y10T74/1282

摘要： A gyro bearing and caging mechanism in which a spherical gyro rotor is driven by an induction motor with bearing surfaces between the rotor and stator having a magnetic fluid that is held in place at discrete positions around the circumference of the rotor by permanent magnets imbedded in the spherical rotor and a movable caging plate with magnets in a surface thereof and magnetic fluid between surfaces of the caging plate and a top surface of the rotor for caging the rotor.

摘要翻译： 一种陀螺仪轴承和笼式机构，其中球面陀螺转子由感应电动机驱动，转子和定子之间的轴承表面具有磁性流体，该磁性流体通过嵌入在转子和定子中的永磁体在转子的圆周上的离散位置处保持就位 球形转子和在其表面具有磁体的活动笼式平板和笼式板的表面之间的磁性流体和转子的顶表面用于笼罩转子。

公开(公告)号：US4322984A

公开(公告)日：1982-04-06

申请号：US94406

申请日：1979-11-15

申请人： George Lasker ,  Paul G. Redman

发明人： George Lasker ,  Paul G. Redman

IPC分类号： G01C19/26 ,  G01C19/24

CPC分类号： G01C19/26 ,  Y10T74/1204 ,  Y10T74/1207 ,  Y10T74/1218

摘要： A gyroscope caging system includes a clamping ring encircling a portion of the rotor of the gyro and adapted to engage an annular groove in the rotor simultaneously with engagement of a groove in a base support member, for clamping to and supporting the rotor during very high acceleration launches of a missile or airborne vehicle. The caging system is adapted to preload the gyroscope bearings in order to insure that the maximum load is carried by the cage device.

摘要翻译： 陀螺仪笼式系统包括围绕陀螺仪的转子的一部分的夹环，并且适于与转子中的环槽相啮合同时与基座支撑件中的凹槽啮合，用于在极高加速度下夹紧和支撑转子 发射导弹或空降车。 笼式系统适用于预加载陀螺仪轴承，以确保最大载荷由笼式装置承载。

公开(公告)号：US4316394A

公开(公告)日：1982-02-23

申请号：US120203

申请日：1980-02-11

申请人： James R. Dohogne

发明人： James R. Dohogne

IPC分类号： F16C39/06 ,  G01C19/24 ,  G01C19/28

CPC分类号： F16C32/044 ,  G01C19/24 ,  G01C19/28 ,  Y10T74/125 ,  Y10T74/1279

摘要： A gyro rotor is freely suspended in a housing for simultaneous rotation about a spin axis and a pair of precession axes in turn orthogonal to the spin axis, by a pair of magnetic suspensions spaced along the spin axis. Each magnetic suspension comprises a magnetically permeable stator member and a cooperative magnetically permeable rotor member relatively arranged so as to define axially spaced annular magnetically permeable gaps. Each magnetic suspension includes a permanent magnet for producing a fixed or passive magnetic flux in each gap and an electromagnet coil for producing a controllable or active magnetic flux in each gap. The passive flux provides passive stabilized suspension of the rotor parallel to two of said axes, while the active flux provides active stabilized suspension of the rotor parallel to the third of said axes using a closed servo loop. The ratio of the axial distance between the annular magnetic gaps to the diameter thereof is such that the rotor tends to maintain its position upon tilt thereof; that is, the gyro exhibits substantially zero restoring spring rates about its sensing axes. By means of closed loop servo techniques including angular pick-offs and torquers, measures of rates of turn are provided in terms of torquer currents required to maintain the angular pick-off outputs at null values.

摘要翻译： 陀螺仪转子自由地悬挂在壳体中，以通过沿着旋转轴线间隔开的一对磁性悬架绕旋转轴线和一对进动轴线同时旋转，这些旋转轴线与旋转轴线正交。 每个磁悬浮液包括一个可导磁的定子构件和一个相对布置的协同的导磁转子构件，以便限定轴向隔开的环形磁导可移动间隙。 每个磁悬浮液包括用于在每个间隙中产生固定或无源磁通的永磁体和用于在每个间隙中产生可控或有源磁通的电磁线圈。 被动通量提供了平行于两个所述轴线的转子的被动稳定悬架，而有源通量使用闭合伺服回路提供平行于所述三个轴线的转子的主动稳定悬架。 环形磁隙之间的轴向距离与其直径的比率使得转子趋于在其倾斜时保持其位置; 也就是说，陀螺仪在其感测轴上表现出基本上零的恢复弹簧刚度。 通过包括角度检测和扭矩的闭环伺服技术，可以根据将角度传感器输出保持为零值所需的扭矩电流来提供转速。

公开(公告)号：US4167296A

公开(公告)日：1979-09-11

申请号：US866117

申请日：1977-12-30

申请人： Joe B. Dendy

发明人： Joe B. Dendy

IPC分类号： F16C39/06 ,  G01C19/24 ,  G05D3/14 ,  H02K7/09 ,  F16C39/00

CPC分类号： F16C32/0442 ,  F16C32/0444 ,  F16C32/0465 ,  F16C32/0476 ,  G01C19/24 ,  G05D3/1445 ,  H02K7/09 ,  Y10T74/125 ,  Y10T74/1279

摘要： A protective control system is provided in a magnetic suspension system having a permanent magnetic and an electro-magnetic circuit for levitating a spinning rotor; normally effective axial stability between limiting positions is provided by a feed back servo system supplying control currents to a pair of solenoids for modulating the permanent magnetic field in the suspension gaps. The physical support system and the suspended apparatus are protected from damage due to excessive axial oscillatory translation of the suspended rotor by detection of such non-linear events and by the removal of the suspension command for a suitable time period. The suspension control is then returned to its initial state and is again set into operation to translate the suspended element asymptotically and smoothly to its desired central location.

摘要翻译： 在具有用于悬浮纺丝转子的永磁和电磁回路的磁悬浮系统中提供保护控制系统; 通过反馈伺服系统提供限制位置之间的通常有效的轴向稳定性，该伺服系统向一对螺线管提供控制电流，用于调制悬架间隙中的永久磁场。 通过检测这种非线性事件以及通过在适当的时间段内移除悬架命令来保护物理支撑系统和悬挂装置免受由于悬挂转子的过度的轴向振荡平移的损害。 悬架控制然后返回到其初始状态，并且再次被设置成操作以将悬挂的元件渐近平稳地平移到其期望的中心位置。

公开(公告)号：US4043614A

公开(公告)日：1977-08-23

申请号：US626527

申请日：1975-10-28

申请人： Frank Lyman

发明人： Frank Lyman

IPC分类号： F16C39/06 ,  G01C19/24 ,  F16C39/00

CPC分类号： F16C32/0465 ,  F16C32/0444 ,  F16C32/0487 ,  G01C19/24 ,  Y10T74/1286

摘要： A magnetic suspension system for efficiently supporting a rotor of relatively large radius and high available moment of inertia includes concentric stator and rotor elements spaced apart by narrow gaps of relatively large diameter and very small axial extent. A pair of spaced discs in the stator are oppositely polarized by a permanent magnet, their peripheral magnetic field strength being selectively augmented or diminished in predetermined sectors by electromagnet windings thereon. The rotor includes narrow ring faces juxtaposed to said discs, a permanent magnetic polarization being provided between the narrow ring faces. Means are provided for varying the relative electromagnetic contributions in the different sectors to maintain stability of rotor positioning with minimized electric power. SUThe present invention relates to magnetic suspension systems.Magnetic suspension systems have been described in various prior patents including, inter alia, the following U.S. patents to Joseph Lyman, assigned to the assignee of the present invention:______________________________________ Patent No. Issued ______________________________________ 3,428,371 February 18, 1969 3,473,852 October 21, 1969 3,860,300 January 14, 1975 ______________________________________ The present invention is directed to improved magnetic suspension systems for affording advantages as to manufacturing along with enhanced control of the suspended body. A plurality of like bearing elements may be constructed for inclusion in one end product for stable reference purposes or other purposes having stringent requirements as to the bearings. Furthermore, high bearing efficiency and control of alignment are to be provided without excessive mass of the suspension means.An object of this invention is to provide an improved magnetic suspension system providing great restoring force in response to the axial component of relative displacement between a stator portion and a rotor portion, providing great restoring force in response to any relative cocking (i.e. departure from parallelism) between a stator portion and a rotor portion, and providing efficient and effective control of the force components perpendicular to the axis of the stator portion to provide the optimum positioning of the rotor axis relative to the stator axis to meet the various conditions which may be encountered.A further object of this invention is to provide an improved magnetic suspension system which provides the aforementioned benefits without excessive drag from eddy currents induced in the rotor.Yet a further object is to provide an improved magnetic suspension system consisting of plural component wafers each having the aformentioned attributes.In order to meet these objects, there are provided in the present invention water-like bearing units each of relatively large diameter in contrast to its thickness, wherein the magnetic gaps at which the suspension forces are generated are formed at radii approaching the overall maximum radius of a wafer unit. In a preferred version, the rotor portion is arranged not within but rather surrounding the stator portion of the bearing wafer unit. In at least one of the two portions of one wafer unit (the stator portion or the rotor portion) an axially polarized annular magnet is provided between two pole pieces which provide parallel narrow ring-like poles to coact with a pair of narrow ring-like poles of the cooperating portion (the rotor portion or the stator portion) of the wafer. In the preferred construction an axially polarized permanent magnet is included in each of the two portions (the stator and the rotor) of the wafer, the axial sensing of the rotor magnet being opposite to that of the stator magnet. The result in any event is magnetic flux directed substantially radially outward at the annular gap at one side of the wafer unit and magnetic flux directed substantially radially inward at the annular gap at the opposite side of the wafer unit.

摘要翻译： 用于有效地支撑相对较大半径和高可用转动惯量的转子的磁悬浮系统包括通过相对较大直径和非常小的轴向范围的窄间隙隔开的同心定子和转子元件。 定子中的一对隔开的圆盘通过永磁体相反地极化，它们的外围磁场强度通过其上的电磁绕组在预定扇区中选择性地增大或减小。 转子包括与所述盘并列的窄环面，在窄环面之间设置有永久磁极化。 提供了用于改变不同扇区中的相对电磁贡献的装置，以保持具有最小化电功率的转子定位的稳定性。

公开(公告)号：US3787100A

公开(公告)日：1974-01-22

申请号：US3787100D

申请日：1972-12-11

申请人： ARMEMENT DIRECTION TECH ENGINS

发明人： HABERMANN H ,  JOLY P ,  AUBER Y ,  LOYEN R ,  LOYEN NEE VOISEN G

IPC分类号： F16C39/06 ,  G01C19/24

CPC分类号： F16C32/0451 ,  F16C2360/45 ,  F16C2370/00 ,  G01C19/24 ,  Y10T74/1261 ,  Y10T74/1279

摘要： A gyroscope including a rotating member which is supported by a pair of magnetic bearings. Each bearing has two detectors for providing signals representative of the relative position of the member with respect to a common axis of the two bearings along first and second directions perpendicular to the axis and to each other. A feed-back loop controls biasing means in each bearing assembly and includes, for each direction, a summation circuit which sums the signals from the detectors corresponding to that direction in the two bearings and applies correction signals increasing with the summed signals to the biasing means corresponding to the directions in the two bearings. A subtracting circuit subtracts the signals from the detectors corresponding to the considered direction in the two bearings and applied correction signals to the biasing means, but through a polarity inverter in one of the bearings.

摘要翻译： 一种陀螺仪，包括由一对磁性轴承支撑的旋转部件。 每个轴承具有两个检测器，用于提供代表相对于两个轴承的公共轴线的相对位置的信号，该相对位置沿着垂直于轴线的彼此的第一和第二方向。 反馈回路控制每个轴承组件中的偏置装置，并且对于每个方向包括一个求和电路，其求和来自两个轴承中与该方向相对应的检测器的信号，并将校正信号与相加的信号一起增加到偏置装置 对应于两个轴承的方向。 减法电路从两个轴承中与所考虑的方向相对应的检测器中减去信号，并将补偿信号施加到偏置装置，但是通过其中一个轴承中的极性反相器。

公开(公告)号：US3697143A

公开(公告)日：1972-10-10

申请号：US3697143D

申请日：1971-05-21

申请人： NORTH AMERICAN ROCKWELL

发明人： KLINCHUCH JOHN F

IPC分类号： F16C17/00 ,  G01C19/24 ,  F16C39/06

CPC分类号： F16C32/0404 ,  F16C2370/00 ,  G01C19/24 ,  Y10T74/12

摘要： The invention is directed to a suspension system for an electrostatic gyroscope wherein the pulse charges applied to electrode pairs to maintain the gyroscope rotor centered between the electrodes is alternated in polarity so as to minimize the accumulated charge on the rotor.

摘要翻译： 本发明涉及一种用于静电陀螺仪的悬挂系统，其中施加到电极对上的脉冲电荷将陀螺仪转子保持在电极之间的中心位置，从而使转子上累积的电荷最小化。