PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR
    1.
    发明申请
    PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR 审中-公开
    电磁铁电机的脉宽调制控制

    公开(公告)号:WO2014201180A1

    公开(公告)日:2014-12-18

    申请号:PCT/US2014/042009

    申请日:2014-06-11

    CPC classification number: H02P7/29 G01R31/06 H01F7/1844

    Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.

    Abstract translation: 驱动机构(16A,16B),其构造成在两个位置之间驱动热隔离致动器(​​30)。 驱动机构包括被配置为可旋转地驱动电动机构件(20)的旋转驱动电动机(18)和联接到电动机构件并具有驱动臂(24,42)的驱动构件(22),驱动臂构造成响应于从 第一位置在马达构件旋转时到达第二位置。 致动器(30)响应于从第一位置移动到第二位置的驱动臂(24)的移动。 驱动电路(60)被配置为产生被配置为可控制地驱动电动机的脉宽调制(PWM)驱动信号(70),PWM驱动信号具有第一占空比(阶段1),其被配置为使驱动臂从 第一位置,并且当驱动臂接近第二位置时具有与第一占空比不同的第二占空比(阶段2)。 可以在驱动臂(42)接合硬停止(54)之前移除驱动信号(阶段3)。 驱动机构可以包括至少一个传感器(40),其被配置为确定驱动臂(42)在第一位置附近并靠近第二位置的位置。 致动器在第一位置和第二位置都与驱动臂(42)热隔离。

    VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT, AND METHOD
    2.
    发明申请
    VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT, AND METHOD 审中-公开
    用于低温环境的可变孔隙机理及方法

    公开(公告)号:WO2014201181A1

    公开(公告)日:2014-12-18

    申请号:PCT/US2014/042010

    申请日:2014-06-11

    Abstract: A device (10) operable in a ultra-high vacuum and in a cryogenic environment. The device has bi-stable solenoid motors (18) configured to drive a shutter assembly (12) defining an aperture (15) having a first shape when the motors are each disposed in the respective first position, and wherein the aperture has a second shape when the motors are each disposed in the respective second position. Actuators (30) responsive to the motors are thermally isolated from the cryogenic shutter assembly except when the motors position the shutter assembly to change a shape of the aperture. The device is suitable for use in FLIR and other thermally sensitive devices.

    Abstract translation: 一种可在超高真空和低温环境中工作的装置(10)。 该装置具有双稳电磁铁电动机(18),其配置成当电动机各自设置在相应的第一位置时驱动限定具有第一形状的孔(15)的活门组件(12),并且其中所述孔具有第二形状 当电动机各自设置在相应的第二位置时。 响应于电动机的致动器(30)与低温快门组件热隔离,除了当电动机定位快门组件以改变孔的形状时。 该设备适用于FLIR和其他热敏设备。

    THERMAL CONTROL IN VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT
    3.
    发明申请
    THERMAL CONTROL IN VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT 审中-公开
    用于低温环境的可变孔隙机制中的热控制

    公开(公告)号:WO2014201036A1

    公开(公告)日:2014-12-18

    申请号:PCT/US2014/041769

    申请日:2014-06-10

    Abstract: A shutter assembly (12) comprising a first planar member (70) and a second planar member (72) opposed from one another and forming a sleeve having a cavity (80) therebetween, the sleeve having a pair of side rails (78) adjacent the cavity along sides of the sleeve. A first shutter member (14) having a first end (92) is disposed in the cavity and slidingly disposed along one of the side rails, and a second shutter member (14) having a second end (92) is disposed in the cavity and slidingly disposed along the other side rail. The first end is opposed to the second end and is configured to be selectively advanced towards, and retracted from, the second end so as to define an aperture (15) therebetween having a first shape when disposed in a first position, and wherein the aperture has a second larger shape when the first end is disposed in a second position. The first shutter member and the second shutter member maintain a thermal contact with the side rails and the planar members in all positions. The shutter assembly is well suited to be used at a cryogenic temperature and in a high vacuum environment.

    Abstract translation: 一种快门组件(12),包括彼此相对的第一平面构件(70)和第二平面构件(72),并形成在其间具有空腔(80)的套筒,所述套筒具有一对相邻的侧轨(78) 沿着套筒侧面的空腔。 具有第一端(92)的第一闸门构件(14)设置在空腔中并沿着一个侧轨滑动地设置,并且具有第二端(92)的第二闸门构件(14)设置在空腔中, 沿着另一侧轨滑动地设置。 第一端与第二端相对并且被配置为选择性地朝向第二端前进并从第二端缩回,以便在它们之间限定一个孔(15),当其设置在第一位置时具有第一形状,并且其中孔 当第一端设置在第二位置时具有第二较大的形状。 第一挡板构件和第二挡板构件在所有位置保持与侧轨和平面构件的热接触。 快门组件非常适合在低温和高真空环境中使用。

    VACUUM STABLE MECHANISM DRIVE ARM
    4.
    发明申请
    VACUUM STABLE MECHANISM DRIVE ARM 审中-公开
    真空稳定机械驱动臂

    公开(公告)号:WO2014201153A1

    公开(公告)日:2014-12-18

    申请号:PCT/US2014/041966

    申请日:2014-06-11

    Abstract: A drive mechanism (16A, 16B) including a rotary actuated motor (18) configured to rotatably drive a drive arm (24) between a first position to a second position and an actuator (30) responsive to movement of the arm, wherein the actuator is thermally isolated from the arm in both the first position and the second position to create a thermal barrier. The drive arm is configured to engage and advance the actuator between the first position and the second position, while remaining physically spaced from the actuator in the first position and the second position. The drive arm includes a recess (26) such as an opening, wherein the actuator has a member (30, 34) configured to reside in the recess and remain thermally isolated from the arm in both the first position and the second position. In one preferred embodiment, a shutter (14) of an imaging device (10) is positioned in response to the actuator, which shutter remains thermally isolated from the motor and arm. Other devices may be driven as well, such as switches.

    Abstract translation: 一种包括旋转驱动马达(18)的驱动机构(16A,16B),所述驱动机构构造成响应于所述臂的移动而在第一位置与第二位置之间可旋转地驱动驱动臂(24)和致动器(30),其中所述致动器 在第一位置和第二位置处与臂热隔离以产生热障。 所述驱动臂构造成在所述第一位置和所述第二位置之间接合并前进所述致动器,同时在所述第一位置和所述第二位置与所述致动器保持物理间隔。 驱动臂包括诸如开口的凹部(26),其中致动器具有构造成位于凹部中并在第一位置和第二位置处与臂保持热隔离的构件(30,34)。 在一个优选实施例中,响应于致动器定位成像装置(10)的快门(14),该快门与马达和臂保持热隔离。 也可以驱动其他装置,例如开关。

    VARIABLE APERTURE MECHANISM FOR CREATING DIFFERENT APERTURE SIZES IN CAMERAS AND OTHER IMAGING DEVICES
    5.
    发明申请
    VARIABLE APERTURE MECHANISM FOR CREATING DIFFERENT APERTURE SIZES IN CAMERAS AND OTHER IMAGING DEVICES 审中-公开
    用于在摄像机和其他成像设备中创建不同光圈尺寸的可变光孔机制

    公开(公告)号:WO2014074553A1

    公开(公告)日:2014-05-15

    申请号:PCT/US2013/068649

    申请日:2013-11-06

    CPC classification number: G03B9/02

    Abstract: An apparatus includes a first blade (206) configured to be coupled to a first magnet (220) and a second blade (208) configured to be coupled to a second magnet (220). At least one of the blades has at least one cutout (214). The apparatus also includes electromagnetic motors (112a, 112b) configured to generate different electromagnetic fields to (i) cause the magnets to move the blades into a first configuration and (ii) cause the magnets to move the blades into a second configuration. The blades are separated to form a larger aperture in the first configuration, and the at least one cutout in the blades forms a smaller aperture in the second configuration. The apparatus may further include a cover plate (210) and a base plate (212). The base plate can include an opening that defines the larger aperture and blade stops (302) and stop pins (402) configured to stop movement of the blades.

    Abstract translation: 一种装置包括被配置为联接到第一磁体(220)的第一叶片(206)和被配置为联接到第二磁体(220)的第二叶片(208)。 至少一个叶片具有至少一个切口(214)。 该装置还包括被配置为产生不同电磁场的电磁电动机(112a,112b),以便(i)使磁体将叶片移动到第一配置中,并且(ii)使磁体将叶片移动到第二配置。 叶片被分离以在第一构造中形成较大的孔,并且叶片中的至少一个切口在第二构造中形成较小的孔。 该装置还可以包括盖板(210)和基板(212)。 底板可以包括限定更大孔的开口和用于停止叶片运动的叶片止动件(302)和止动销(402)。

    PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR
    6.
    发明公开
    PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR 审中-公开
    一个SOLENOIDMOTORS脉冲宽度调制控制

    公开(公告)号:EP3008811A1

    公开(公告)日:2016-04-20

    申请号:EP14739295.5

    申请日:2014-06-11

    CPC classification number: H02P7/29 G01R31/06 H01F7/1844

    Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.

    PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR

    公开(公告)号:EP3008811B1

    公开(公告)日:2018-09-05

    申请号:EP14739295.5

    申请日:2014-06-11

    CPC classification number: H02P7/29 G01R31/06 H01F7/1844

    Abstract: A drive mechanism (16A, 16B) configured to drive a thermally isolated actuator (30) between two positions. The drive mechanism includes a rotary actuated motor (18) configured to rotatably drive a motor member (20), and a drive member (22) coupled to the motor member and having a drive arm (24, 42) configured to responsively move from a first position to a second position upon rotation of the motor member. An actuator (30) is responsive to movement of the drive arm (24) moved from the first position to the second position. A drive circuit (60) is configured to generate a pulse width modulated (PWM) drive signal (70) configured to controllably drive the motor, the PWM drive signal having a first duty cycle (Phase 1) configured to advance the drive arm from the first position, and having a second duty cycle (Phase 2) different than the first duty cycle as the drive arm approaches the second position. The drive signal may be removed (Phase3) before the drive arm (42) engages a hard stop (54). The drive mechanism may comprise at least one sensor (40) configured to determine a position of the drive arm (42) proximate the first position and proximate the second position. The actuator is thermally isolated from the drive arm (42) in both the first position and the second position.

    VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT, AND METHOD
    9.
    发明公开
    VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT, AND METHOD 有权
    VARIABLER APERTURMECHANISMUSFÜREINE KRYOGENE UMGEBUNG UND VERFAHREN

    公开(公告)号:EP3008812A1

    公开(公告)日:2016-04-20

    申请号:EP14750026.8

    申请日:2014-06-11

    Abstract: A device (10) operable in a ultra-high vacuum and in a cryogenic environment. The device has bi-stable solenoid motors (18) configured to drive a shutter assembly (12) defining an aperture (15) having a first shape when the motors are each disposed in the respective first position, and wherein the aperture has a second shape when the motors are each disposed in the respective second position. Actuators (30) responsive to the motors are thermally isolated from the cryogenic shutter assembly except when the motors position the shutter assembly to change a shape of the aperture. The device is suitable for use in FLIR and other thermally sensitive devices.

    Abstract translation: 可在超高真空和低温环境中操作的装置。 该装置具有双稳电磁铁电动机,其配置为当电动机各自设置在相应的第一位置时驱动限定具有第一形状的孔的活门组件,并且其中当电动机各自设置在相应的第一形状时,该孔具有第二形状 第二名 响应于马达的致动器与低温闸门组件热隔离,除了当马达定位闸门组件以改变孔的形状时。 该设备适用于FLIR和其他热敏设备。

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