VACUUM STABLE MECHANISM DRIVE ARM
    1.
    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。

    PULSE WIDTH MODULATION CONTROL OF SOLENOID MOTOR
    2.
    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。

    RADIOACTIVE ANOMALY DETECTOR
    3.
    发明申请
    RADIOACTIVE ANOMALY DETECTOR 审中-公开
    放射性异常检测器

    公开(公告)号:WO2016200473A1

    公开(公告)日:2016-12-15

    申请号:PCT/US2016/026319

    申请日:2016-04-07

    Abstract: A detector apparatus (10) is provided and includes a collector (20) having access to a sample of a gaseous fluid and a tester (40) coupled to and disposed remotely from the collector (20). The tester (40) includes a test chamber (41) into which a sample is directed from the collector (20), an excitation element 43, such as a laser, to excite the sample in the test chamber (41) and a spectrum analyzing device (44), such as a spectrometer, coupled to the test chamber (41) to analyze the excited sample, and preferably to generate a plasma or filament, for evidence of a concentration of particles of interest, such as isotopic molecules, in the gaseous fluid exceeding a threshold concentration. The threshold concentration is defined in accordance with a type of the particles of interest and a residence time of the sample. In particular, the apparatus is for radioactive anomaly detection of hidden or shielded special nuclear materials (SNM) or smuggled nuclear weapons in shipping containers at ports where the are loaded or unloaded via a crane system, or at check points when the containers are on trucks that move or pass through check points.

    Abstract translation: 提供检测器装置(10),并且包括能够接近气体流体样本的收集器(20)和耦合到远离收集器(20)并远离收集器的测试器(40)。 测试器(40)包括测试室(41),样品从集电器(20)引导到其中,激发元件43(例如激光器)激发测试室(41)中的样品并进行频谱分析 耦合到测试室(41)的装置(44),例如光谱仪,以分析激发的样品,并且优选地产生等离子体或细丝,以证明在所述样品中的所述目标颗粒如同位素分子的浓度, 气体流体超过阈值浓度。 阈值浓度根据感兴趣的颗粒的类型和样品的停留时间来定义。 特别是,该装置用于通过起重机系统装载或卸载的港口的集装箱运输中的隐藏或屏蔽的特殊核材料(SNM)或走私核武器的放射性异常检测,或者集装箱在卡车上的检查点 移动或通过检查点。

    VARIABLE APERTURE MECHANISM FOR CRYOGENIC ENVIRONMENT, AND METHOD
    4.
    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。

    METHOD FOR EMBEDDED FEEDBACK CONTROL FOR BI-STABLE ACTUATORS
    5.
    发明申请
    METHOD FOR EMBEDDED FEEDBACK CONTROL FOR BI-STABLE ACTUATORS 审中-公开
    用于双稳态执行器的嵌入式反馈控制方法

    公开(公告)号:WO2014201150A1

    公开(公告)日:2014-12-18

    申请号:PCT/US2014/041963

    申请日:2014-06-11

    Abstract: A drive mechanism (16A, 16B) having a bi-stable motor (18) driving an actuator (22) with a high starting torque, and a slower, regulated velocity as the actuator moves through its range of travel. This advantageously maintains high torque margins at low velocity, and lowers the kinetic energy of the bi-stable actuator at end of travel by limiting the terminal velocity (Wm) and establishing a softer stop. A solenoid may be used in one embodiment. Actual bi-stable motor values are obtained immediately before the move to maintain accurate control of the motor, such as the resistance and inductance of the motor coil. For instance, the bi-stable motor (46) may be driven into a stop (50, 52), and the coil resistance(Rm) may be calculated by sensing current (Im) associated with the calibration voltage (Vd). Inductance (Lm) may be measured similarly by applying low level AC currents. Back-emf is sensed through the coil resistance, and an estimated motor rotation rate is sent to a feedback loop (68) to maintain the desired rate.

    Abstract translation: 具有双稳电动机(18)的驱动机构(16A,16B)以高起动转矩驱动致动器(22),并且随着致动器在其行程范围内移动而变慢。 这有利于在低速度下维持高扭矩余量,并且通过限制终端速度(Wm)并建立更软的停止来降低行程结束时双稳态致动器的动能。 在一个实施例中可以使用螺线管。 在移动之前立即获得实际的双稳态电机值,以保持电机的精确控制,如电机线圈的电阻和电感。 例如,双稳电动机(46)可以被驱动到停止(50,52)中,并且可以通过感测与校准电压(Vd)相关联的电流(Im)来计算线圈电阻(Rm)。 可以通过施加低电平AC电流来类似地测量电感(Lm)。 通过线圈电阻感测反电动势,并且将估计的电动机转速发送到反馈回路(68)以保持期望的速率。

    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
    10.
    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。

Patent Agency Ranking