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1. 发明授权

US5496153A Method and apparatus for measuring piston position in a free piston compressor 失效
标题翻译：用于测量自由活塞式压缩机中的活塞位置的方法和装置
公开(公告)号：US5496153A
公开(公告)日：1996-03-05
申请号：US282631
申请日：1994-07-29
申请人： Robert W. Redlich
发明人： Robert W. Redlich
IPC分类号： F04B49/00 , F04B31/00 , F04B35/04 , F04B49/06 , G01D5/20 , G01D5/242 , G05D3/00
CPC分类号： F04B35/045 , F04B49/06 , F04B2201/0201 , F04B2203/0401 , F04B2203/0402
摘要： A method of measuring the distance at closest approach between the piston of a free piston compressor and the cylinder head. The method derives measurements of both the alternating and average components of piston position from direct measurements of the voltage and current applied to the linear permanent magnet motor that drives the piston, and thus eliminates any requirement for an additional position sensor located within the compressor.
摘要翻译：测量自由活塞式压缩机的活塞与气缸盖之间最接近的距离的方法。该方法通过直接测量施加到驱动活塞的线性永磁电动机的电压和电流来测量活塞位置的交替和平均分量，从而消除了对位于压缩机内的附加位置传感器的任何要求。

2. 发明授权

US4870358A Angular position sensor and angular position determination means equipped with several of these sensors 失效
标题翻译：角位置传感器和角位置确定装置配备有这些传感器中的几个
公开(公告)号：US4870358A
公开(公告)日：1989-09-26
申请号：US66458
申请日：1987-06-26
申请人： Christian Glaize , Guy Lemarquand
发明人： Christian Glaize , Guy Lemarquand
IPC分类号： G01B7/30 , B25J19/02 , G01B7/00 , G01D5/20 , G01D5/242 , H02K29/12
CPC分类号： H02K29/12 , B25J19/027 , G01D5/242
摘要： An angular position sensor for determining the relative angular position of two relatively rotatable ferromagnetic coaxial components, such as a rotor and stator. The components have the same number of regularly distributed teeth and the teeth in one component are separated by an air gap from the teeth in the other component. A plurality of coils are connected in series with each other and are disposed around the teeth in one of the components and correspond in number to the number of associated teeth. An electric excitation signal having a measurable constant electrical characteristic is fed to the plurality of coils from a source. The characteristic is modulatable in response to variations in the magnetic reluctance of the air gap effected by changes in the relative angular position between the two components. Electronic circuitry is connected to coils for measuring the modulation of the characteristics to determine the relative angular position of the components. In angular position determination apparatus comprising a plurality of angular position sensors, mechanical connections are provided between the rotors on the one hand and the stators on the other. The angular displacement between the rotor and stator teeth differs for each sensor, the difference generally being a multiple of the quotient of 2.pi. by the number of teeth and the number of sensors. The sensor is well adapted for use in the robotics field.
摘要翻译：用于确定两个相对旋转的铁磁同轴部件（例如转子和定子）的相对角位置的角位置传感器。这些部件具有相同数量的规则分布的齿，并且一个部件中的齿通过与另一部件中的齿的气隙分开。多个线圈彼此串联连接，并且在其中一个部件中围绕齿配置并且数量对应于相关联的齿数。具有可测量的恒定电特性的电激励信号从源馈送到多个线圈。该特性可以响应于由两个部件之间的相对角位置的变化而产生的气隙的磁阻的变化而可调制。电子电路连接到用于测量特性调制的线圈，以确定组件的相对角位置。在包括多个角位置传感器的角位置确定装置中，一方面在转子之间提供机械连接，另一方面提供定子。对于每个传感器，转子和定子齿之间的角位移不同，差异通常是齿数和传感器数量的2 pi乘数的倍数。传感器适用于机器人领域。

3. 发明授权

US4667138A Multiplexed synchro driver 失效
标题翻译：多路同步驱动器
公开(公告)号：US4667138A
公开(公告)日：1987-05-19
申请号：US845219
申请日：1986-03-27
申请人： Robert W. Harper
发明人： Robert W. Harper
IPC分类号： G01D5/242 , G01D5/245 , G05B6/02
CPC分类号： G01D5/242 , G01D5/2451
摘要： An improved drive control circuit is disclosed for enabling the multiplexed drive of synchro receivers. A zero crossing detector is coupled to sense the zero crossings of a signal driving the excitation winding of a synchro receiver. A counter coupled to the output of the zero crossing detector responds to one of every n counts to provide a count signal for operating a synchro driver associated with each one of multiple synchro receivers. The count signal causes the synchro driver to provide a signal output to the respective synchro receiver during a period defined by the count signal to reduce average power dissipation and provide effective damping without sacrificing peak current capability.
摘要翻译：公开了一种改进的驱动控制电路，用于实现同步接收机的多路复用驱动。耦合过零检测器以感测驱动同步接收器的激励绕组的信号的过零点。耦合到过零检测器的输出的计数器响应每n个计数中的一个计数，以提供用于操作与多个同步接收器中的每一个相关联的同步驱动器的计数信号。计数信号使同步驱动器在由计数信号定义的时间段期间向相应的同步接收器提供信号输出，以减少平均功耗并提供有效的阻尼，而不会牺牲峰值电流能力。

4. 发明授权

US10931217B2 Power system 有权
公开(公告)号：US10931217B2
公开(公告)日：2021-02-23
申请号：US16401543
申请日：2019-05-02
申请人： ROLLS-ROYCE plc , MTU FRIEDRICHSHAFEN GMBH , MTU ONSITE ENERGY GMBH
发明人： Souvik Dasgupta , Johannes Demharter , Michael Kreissl , Yang Shicong , Amit K Gupta
IPC分类号： H02P9/00 , G01D5/242
摘要： A power system, including: a synchronous electrical generator having a rotor; and an angle computation unit configured to: determine a rotor angle in a steady state period of the synchronous electrical generator, determine a change in rotor angle in a transient period of the synchronous electrical generator, and estimate the rotor angle in the transient period based on the steady state rotor angle and the change in rotor angle.

5. 发明授权

US09839783B2 Magnetic field detectors, implantable medical devices, and related methods that utilize a suspended proof mass and magnetically sensitive material 有权
公开(公告)号：US09839783B2
公开(公告)日：2017-12-12
申请号：US14340893
申请日：2014-07-25
申请人： Medtronic, Inc.
发明人： Randal C. Schulhauser , Ralph B. Danzl , Sharon Kohanna Murray , Michael F. Mattes
IPC分类号： A61N1/37 , A61N1/39 , A61N1/36 , G01R33/028 , A61B5/055 , C23C14/34 , G01D5/242 , G01L1/16 , G01L1/18 , G01R33/00
CPC分类号： A61N1/3718 , A61B5/055 , A61N1/36128 , A61N1/37 , A61N1/3925 , C23C14/34 , G01D5/242 , G01L1/16 , G01L1/18 , G01R33/0052 , G01R33/0283 , G01R33/0286
摘要： Magnetic field detectors include a proof mass suspended by deformable arms similar to a three dimensional accelerometer. The magnetic field detectors further include magnetically sensitive material present on the proof mass and/or deformable arms to cause movement of the proof mass and/or deformable arms when in the presence of a magnetic field. This movement is converted to an electrical signal and that electrical signal is compared to a reference to determine if a magnetic field of interest is present. The magnetic field detector may be included within an implantable medical device, and when the magnetic field detector indicates that a magnetic field of an MRI scanner is present, the implantable medical device may switch to an MRI mode of operation. The device may also switch back to a normal mode of operation once the MRI scanner is no longer detected such as after a predefined amount of time.

6. 发明授权

US06979975B1 Rotation state detecting apparatus of a synchronous machine 有权
标题翻译：同步电机的旋转状态检测装置
公开(公告)号：US06979975B1
公开(公告)日：2005-12-27
申请号：US09979335
申请日：2000-03-27
申请人： Yoshihiko Kinpara , Toshiyuki Kaitani
发明人： Yoshihiko Kinpara , Toshiyuki Kaitani
IPC分类号： G01B7/30 , G01D5/242 , G01P3/44 , G01P3/46 , G01P13/04 , H02P6/16 , H02P6/18 , H02P7/36
CPC分类号： G01P3/44 , G01P13/045 , H02P6/17 , H02P6/185 , H02P25/024
摘要： In a conventional rotation state detecting apparatus of a synchronous machine, since short-circuiting must be carried out twice or more when a rotation speed is detected, there have been problems in that it takes a time to detect a rotation state, and it takes a time to start up. A rotation state detecting apparatus for a synchronous machine according to the present invention has been made to solve the above problem, and includes a calculation unit for outputting a voltage vector command and a trigger signal and for outputting a rotation state of a synchronous machine having at least three windings in an idle state, a circuit unit for applying voltages to the respective phases of the synchronous machine on the basis of the voltage vector command, and a detection unit for detecting a current of the synchronous machine on the basis of the trigger signal and outputting a value of the detected current to the calculation unit. The calculation unit outputs a voltage vector for short-circuiting the respective phases of the synchronous machine, outputs trigger signals on at least one occurrence of the short-circuiting to produce current values from the detection unit multiple times, and calculates a rotation speed and a rotation position of the synchronous machine.
摘要翻译：在同步电机的常规旋转状态检测装置中，由于在检测到转速时必须进行两次以上的短路，所以存在检测旋转状态需要时间的问题，启动时间为了解决上述问题，已经做出了一种用于同步电机的旋转状态检测装置，并且包括：计算单元，用于输出电压矢量指令和触发信号，并输出同步电机的旋转状态，在空闲状态下的至少三个绕组，用于基于电压矢量指令向同步电机的各相施加电压的电路单元，以及用于基于触发信号检测同步电机的电流的检测单元并将所检测的电流的值输出到计算单元。计算单元输出用于短路同步电机的各相的电压矢量，在至少一次短路的情况下输出触发信号，以从检测单元多次产生电流值，并计算转速和同步电机的旋转位置。

7. 发明申请

US20050080549A1 Method and device for detecting the electrical position of an electrical machine rotor 有权
标题翻译：用于检测电机转子电气位置的方法和装置
公开(公告)号：US20050080549A1
公开(公告)日：2005-04-14
申请号：US10500060
申请日：2002-12-23
申请人： Nicolas Guillarme , Stephane Sorel
发明人： Nicolas Guillarme , Stephane Sorel
IPC分类号： F02P7/067 , F02D41/34 , F02D45/00 , F02N11/04 , G01D5/242 , H02K23/52
CPC分类号： G01D5/242 , F02D41/0097 , F02N11/04
摘要： In order to detect the electrical position of the rotor of an electrical machine (4) coupled (6) to an internal combustion engine (7) provided with a sensor (8) delivering a first angular position signal for speeds of rotation greater than a minimum measurement speed (VM), a second signal is generated on the basis of the characteristics of the electrical machine, the second signal being representative of an estimated angular position of the rotor for speeds of rotation that are less than an estimation speed (VA); depending on the estimated speed of rotation, means for controlling the machine are supplied either with the estimated angular position value when the estimated speed is below a first threshold (S1), or with the signal from the sensor when the estimated speed is greater than a second threshold (S2), and a changeover is performed from one signal to the other in a range lying between the first threshold and the second threshold.
摘要翻译：为了检测与设置有传感器（8）的内燃机（7）联接（6）的电机（4）的转子的电位置，其传递大于最小转速的旋转速度的第一角位置信号测量速度（VM），基于电机的特性产生第二信号，第二信号代表小于估计速度（VA）的旋转速度的转子的估计角位置; 根据估计的旋转速度，当估计速度低于第一阈值（S1）时，或者当估计的速度大于一个阈值时，与来自传感器的信号一起提供用于控制机器的装置的估计角位置值第二阈值（S2），并且在第一阈值和第二阈值之间的范围内，从一个信号到另一个信号进行切换。

8. 发明授权

US4406983A Rotational magnetic transducer 失效
标题翻译：旋转磁传感器
公开(公告)号：US4406983A
公开(公告)日：1983-09-27
申请号：US335480
申请日：1981-12-29
申请人： Ciro N. Ramirez
发明人： Ciro N. Ramirez
IPC分类号： H02K37/04 , G01D5/20 , G01D5/242 , G01P3/44 , G05B1/06
CPC分类号： G01D5/242 , G01P3/44
摘要： A magnetic transducer is provided having a plurality of magnetic poles arranged annularly about an axis to form a stator coacting with a rotor which rotates about the same axis to induce changes in the magnetic forces between the poles. Each of the poles in the stator has a sense coil thereon for generating an electric output signal in response to the induced changes in flux. At least one pair of these magnetic poles have the same polarity and are positioned substantially 180.degree. apart. The sense coils on each of the poles in this pair are connected in series so that the resulting output electrical signal from these coils would be cumulative.
摘要翻译：提供了一种磁换能器，其具有围绕轴线环形布置的多个磁极，以形成与围绕相同轴线旋转的转子共同作用的定子，以引起磁极之间的磁力变化。定子中的每个极具有用于响应于所引起的通量变化而产生电输出信号的感测线圈。至少一对这些磁极具有相同的极性，并且相对于180°相对定位。该对中的每个极上的感测线圈串联连接，使得来自这些线圈的所得输出电信号将是累积的。

9. 发明授权

US11079255B2 Angle determination for a generator 有权
公开(公告)号：US11079255B2
公开(公告)日：2021-08-03
申请号：US16401638
申请日：2019-05-02
申请人： ROLLS-ROYCE plc , MTU FRIEDRICHSHAFEN GMBH , MTU ONSITE ENERGY GMBH
发明人： Johannes Demharter , Souvik Dasgupta , Michael Kreissl , Amit K Gupta , Vsk Murthy Balijepalli
IPC分类号： G01D5/242 , H02P9/00
摘要： A method determines a generator system load and/or rotor angle. The generator system has a generator with a generator terminal outputting electrical power generated by the generator, a transformer and a point of common coupling, PCC, terminal. The transformer is between the generator and PCC terminals. The method includes: determining the generator field current; determining the output voltage, the output current and the power factor and/or angle of the output voltage and output current from the generator terminal, and determining the load angle of the generator system, output voltage from the generator terminal, output current from the generator terminal and the power factor and/or angle; and/or determining the output voltage, the output current and the power factor and/or angle of the output voltage and output current, and determining the rotor angle of the generator system, output voltage, output current from the PCC terminal and the power factor and/or angle.

10. 发明授权

US06911798B2 Rotation angle detecting apparatus for synchronous rotary electric machine 失效
标题翻译：同步旋转电机旋转角度检测装置
公开(公告)号：US06911798B2
公开(公告)日：2005-06-28
申请号：US10445015
申请日：2003-05-27
申请人： Masashi Hori , Kiyoshi Kimura , Shigeru Kamio , Yasuhiro Nakai
发明人： Masashi Hori , Kiyoshi Kimura , Shigeru Kamio , Yasuhiro Nakai
IPC分类号： G01B7/30 , B60T1/06 , G01B7/00 , G01D5/242 , G01D5/244 , G05B19/29 , H02K11/00 , H02P6/16
CPC分类号： G01D5/242
摘要： A rotation angle detecting apparatus for a synchronous rotary electric machine includes an incremental encoder. The incremental encoder generates an index pulse each time electric power is supplied to said plurality of phase-coils and an auxiliary index pulse each time the rotor rotates 360 degrees.
摘要翻译：用于同步旋转电机的旋转角度检测装置包括增量编码器。每当转子旋转360度时，增量式编码器每当向所述多个相位线圈供电时产生一个索引脉冲和一个辅助索引脉冲。

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