公开(公告)号：US09577562B2

公开(公告)日：2017-02-21

申请号：US14562591

申请日：2014-12-05

申请人： Raytheon Company

发明人： Theodore J. Conrad ,  Dawson R. Bruckman

IPC分类号： H02P1/00 ,  H02P3/00 ,  H02P25/02 ,  F04B35/04 ,  H01F7/06 ,  H02P6/00 ,  H02P6/18 ,  H02P25/06

CPC分类号： H02P25/028 ,  F04B35/045 ,  H01F7/06 ,  H01F7/066 ,  H01F7/1844 ,  H01F2007/1866 ,  H02P6/006 ,  H02P6/182 ,  H02P25/034 ,  H02P25/06

摘要： A method includes driving a component in an electromagnetic actuator back and forth during one or more cycles of the actuator, where the actuator includes a voice coil. The method also includes identifying a back electromotive force (EMF) voltage of the voice coil during at least one of the one or more cycles. The method further includes determining whether a stroke of the component is substantially centered using the back EMF voltage of the voice coil. In addition, the method includes, based on the determination, adjusting one or more drive signals for the voice coil during one or more additional cycles of the actuator. Determining whether the stroke of the component is centered could include determining whether the back EMF voltage of the voice coil is substantially maximized or determining whether times between extremes in the back EMF voltage are substantially equal.

摘要翻译： 一种方法包括在致动器的一个或多个循环期间来回驱动电磁致动器中的部件，其中致动器包括音圈。 该方法还包括在一个或多个循环中的至少一个循环期间识别音圈的反电动势（EMF）电压。 该方法还包括使用音圈的反电动势电压来确定组件的笔划是否基本居中。 此外，该方法包括基于该确定，在致动器的一个或多个附加周期期间调整音圈的一个或多个驱动信号。 确定组件的行程是否居中可以包括确定音圈的反电动势电压是否基本上最大化，或者确定反电动势电压中的极值之间的时间是否基本相等。

公开(公告)号：US20160050490A1

公开(公告)日：2016-02-18

申请号：US14461226

申请日：2014-08-15

申请人： Raytheon Company

发明人： Dawson R. Bruckman ,  Michael H. Kieffer

IPC分类号： H04R3/00

CPC分类号： G05D19/02 ,  F16F15/002 ,  F25B9/14 ,  F25B2309/1428 ,  F25B2500/13

摘要： A method includes identifying a magnitude and phase angle of vibration forces resulting from a previous cancellation signal, where a first measured force vector is defined by this magnitude and phase angle. The method also includes identifying a magnitude and phase angle of a first cancellation force and transmitting a first AFF cancellation signal configured to generate the first cancellation force, where a first cancellation force vector is defined by this magnitude and phase angle. The method further includes identifying a magnitude and phase angle of vibration forces resulting from the first AFF cancellation signal, where a first resultant force vector is defined by this magnitude and phase angle. Moreover, the method includes determining whether a phase angle difference between the phase angles of the first resultant force vector and the first measured force vector is substantially equal to zero. If so, the method includes continuing to transmit the first AFF cancellation signal.

摘要翻译： 一种方法包括识别由先前消除信号产生的振动力的幅度和相位角，其中第一测量的力矢量由该幅度和相位角定义。 该方法还包括识别第一抵消力的幅度和相位角并且传输被配置为产生第一抵消力的第一AFF抵消信号，其中第一消除力矢量由该幅度和相位角定义。 该方法还包括识别由第一AFF抵消信号产生的振动力的幅度和相位角，其中第一合力矢量由该幅度和相位角定义。 此外，该方法包括确定第一合力矢量的相角与第一测量力矢量之间的相位角差是否大致等于零。 如果是，则该方法包括继续发送第一AFF消除信号。

公开(公告)号：US10416691B2

公开(公告)日：2019-09-17

申请号：US14461226

申请日：2014-08-15

申请人： Raytheon Company

发明人： Dawson R. Bruckman ,  Michael H. Kieffer

IPC分类号： H04R3/00 ,  G05D19/02 ,  F25B9/14 ,  F16F15/00

摘要： A method includes identifying a magnitude and phase angle of vibration forces resulting from a previous cancellation signal, where a first measured force vector is defined by this magnitude and phase angle. The method also includes identifying a magnitude and phase angle of a first cancellation force and transmitting a first AFF cancellation signal configured to generate the first cancellation force, where a first cancellation force vector is defined by this magnitude and phase angle. The method further includes identifying a magnitude and phase angle of vibration forces resulting from the first AFF cancellation signal, where a first resultant force vector is defined by this magnitude and phase angle. Moreover, the method includes determining whether a phase angle difference between the phase angles of the first resultant force vector and the first measured force vector is substantially equal to zero. If so, the method includes continuing to transmit the first AFF cancellation signal.

公开(公告)号：US10060655B2

公开(公告)日：2018-08-28

申请号：US14456821

申请日：2014-08-11

申请人： Raytheon Company

发明人： Dawson R. Bruckman ,  Michael H. Kieffer ,  Theodore J. Conrad ,  Lowell A. Bellis ,  Marwan Aryan

IPC分类号： F25B9/00 ,  F04B37/08 ,  B01D8/00 ,  G05D23/00 ,  F25B9/10 ,  F25B49/02 ,  F25B9/14 ,  G05D23/19 ,  G05D23/20

CPC分类号： F25B9/14 ,  F25B9/10 ,  F25B49/022 ,  F25B2309/1428 ,  G05D23/1902 ,  G05D23/20

摘要： A system includes a multi-stage cryocooler having multiple stages and a temperature control system configured to regulate temperatures of the multiple stages of the multi-stage cryocooler. The temperature control system includes an input interface configured to receive (i) temperature setpoints for the stages of the multi-stage cryocooler and (ii) temperature information corresponding to temperatures measured at the stages of the multi-stage cryocooler. The temperature control system also includes processing circuitry configured to determine temperature errors and calculate at least one of a compressor stroke error and a pressure-volume phase error. The temperature control system further includes at least one controller configured to adjust at least one of a compressor setting and a pressure-volume phase of the multi-stage cryocooler.

公开(公告)号：US20160164446A1

公开(公告)日：2016-06-09

申请号：US14562591

申请日：2014-12-05

申请人： Raytheon Company

发明人： Theodore J. Conrad ,  Dawson R. Bruckman

IPC分类号： H02P25/02

CPC分类号： H02P25/028 ,  F04B35/045 ,  H01F7/06 ,  H01F7/066 ,  H01F7/1844 ,  H01F2007/1866 ,  H02P6/006 ,  H02P6/182 ,  H02P25/034 ,  H02P25/06

摘要： A method includes driving a component in an electromagnetic actuator back and forth during one or more cycles of the actuator, where the actuator includes a voice coil. The method also includes identifying a back electromotive force (EMF) voltage of the voice coil during at least one of the one or more cycles. The method further includes determining whether a stroke of the component is substantially centered using the back EMF voltage of the voice coil. In addition, the method includes, based on the determination, adjusting one or more drive signals for the voice coil during one or more additional cycles of the actuator. Determining whether the stroke of the component is centered could include determining whether the back EMF voltage of the voice coil is substantially maximized or determining whether times between extremes in the back EMF voltage are substantially equal.

摘要翻译： 一种方法包括在致动器的一个或多个循环期间来回驱动电磁致动器中的部件，其中致动器包括音圈。 该方法还包括在一个或多个循环中的至少一个循环期间识别音圈的反电动势（EMF）电压。 该方法还包括使用音圈的反电动势电压来确定组件的笔划是否基本居中。 此外，该方法包括基于该确定，在致动器的一个或多个附加周期期间调整音圈的一个或多个驱动信号。 确定组件的行程是否居中可以包括确定音圈的反电动势电压是否基本上最大化，或者确定反电动势电压中的极值之间的时间是否基本相等。

公开(公告)号：US20160040913A1

公开(公告)日：2016-02-11

申请号：US14456821

申请日：2014-08-11

申请人： Raytheon Company

发明人： Dawson R. Bruckman ,  Michael H. Kieffer ,  Theodore J. Conrad ,  Lowell A. Bellis ,  Marwan Aryan

IPC分类号： F25B9/14

CPC分类号： F25B9/14 ,  F25B9/10 ,  F25B49/022 ,  F25B2309/1428 ,  G05D23/1902 ,  G05D23/20

摘要： A system includes a multi-stage cryocooler having multiple stages and a temperature control system configured to regulate temperatures of the multiple stages of the multi-stage cryocooler. The temperature control system includes an input interface configured to receive (i) temperature setpoints for the stages of the multi-stage cryocooler and (ii) temperature information corresponding to temperatures measured at the stages of the multi-stage cryocooler. The temperature control system also includes processing circuitry configured to determine temperature errors and calculate at least one of a compressor stroke error and a pressure-volume phase error. The temperature control system further includes at least one controller configured to adjust at least one of a compressor setting and a pressure-volume phase of the multi-stage cryocooler.

摘要翻译： 一种系统包括具有多级的多级制冷器和配置成调节多级低温冷却器多级的温度的温度控制系统。 温度控制系统包括输入接口，其被配置为接收（i）用于多级低温冷却器的级的温度设定值和（ii）对应于在多级低温冷却器的阶段测量的温度的温度信息。 温度控制系统还包括配置成确定温度误差并计算压缩机冲程误差和压力 - 体积相位误差中的至少一个的处理电路。 温度控制系统还包括至少一个控制器，该控制器被配置为调节多级低温冷却器的压缩机设定和压力 - 体积相中的至少一个。