Ruggedized dewar unit for integrated Dewar detector assembly

    公开(公告)号:US10222266B2

    公开(公告)日:2019-03-05

    申请号:US14638945

    申请日:2015-03-04

    发明人: Alexander Veprik

    摘要: An Integrated Dewar Detector Assembly (IDDA) is presented. The IDDA comprises: a cold finger base; an elongated Dewar envelope having a proximal end associated with the cold finger base and a distal end comprising an optical window; an elongated tubular cold finger located inside said elongated Dewar envelope and having a proximal end at the cold finger base and a distal end for carrying a detector so as to expose the detector to incoming radiation through said optical window; an internal front support member extending from an inner surface of the Dewar envelope at its distal end to the distal end of the cold finger; and at least one wideband dynamic vibration absorber assembly located outside the Dewar envelope and attached to at least one location on an exterior surface of the Dewar envelope, said dynamic vibration absorber thereby attenuating vibration of the cold finger and the detector.

    Viscous dampening arrangement for taut-band suspension
    3.
    发明授权
    Viscous dampening arrangement for taut-band suspension 失效
    用于拉紧带悬挂的粘性阻尼装置

    公开(公告)号:US4440271A

    公开(公告)日:1984-04-03

    申请号:US387102

    申请日:1982-06-10

    CPC分类号: G01D11/12 G01R1/14 G12B3/08

    摘要: An improved viscous dampening arrangement for a taut-band suspension system in an electrical indicating instrument includes a hub associated with the stator and a turret associated with the rotor. The hub and turret each have central openings for receiving the taut-band. The hub and turret are arranged, in use, in a spaced-apart facing relationship with the facing portions of hub and turret being tapered in a controlled fashion. A viscous dampening fluid is provided between the hub and turret and an anti-wetting agent is applied to the surfaces of the hub and turret where the dampening fluid is not desired. The geometry of the tapers is chosen so as to minimize the effects of longitudinal and radial shocks and vibrations on the electrical indicating instrument.

    摘要翻译: 用于电气指示仪器中的拉紧悬挂系统的改进的粘性阻尼装置包括与定子相关联的毂和与转子相关联的转台。 轮毂和转塔各具有用于接收拉紧带的中心开口。 轮毂和转塔在使用中以间隔开的面对关系布置,轮毂和转台的面对部分以受控的方式逐渐变细。 在轮毂和转塔之间提供粘性阻尼流体,并且将防湿润剂施加到轮毂和转台的不需要润版液的表面上。 选择锥形的几何形状,以最小化纵向和径向冲击和振动对电气指示仪的影响。

    Vibration absorbing apparatus
    4.
    发明授权
    Vibration absorbing apparatus 失效
    振动吸收装置

    公开(公告)号:US4940914A

    公开(公告)日:1990-07-10

    申请号:US194371

    申请日:1988-05-16

    CPC分类号: G12B3/08 F16F15/005

    摘要: A vibration absorbing apparatus for reducing vibrations of a vibration damping objective comprises a vibration member excited by a piezo-ceramic element. The voltage applied to the piezo-ceramic element is controlled in accordance with the vibration state of the objective.

    摘要翻译: 一种用于减少振动阻尼物体的振动的振动吸收装置包括由压电陶瓷元件激发的振动部件。 施加到压电陶瓷元件的电压根据物镜的振动状态进行控制。

    Dash-pot arrangement for balance
    5.
    发明授权
    Dash-pot arrangement for balance 失效
    平衡壶的排列

    公开(公告)号:US3982738A

    公开(公告)日:1976-09-28

    申请号:US567988

    申请日:1975-04-14

    CPC分类号: G01G23/08

    摘要: The dash-pot connected to the balance beam of a portable balance is sealed about the piston rod of the dash-pot by a rubber ring mounted in the cover of the dash-pot and resiliently deformed when an abutment leg projecting from the balance housing is lifted from a supporting surface. The dash-pot arrangement is held thereafter automatically in the locked position, thereby also immobilizing the balance beam, by a spring-loaded detent until the detent is manually released.

    摘要翻译: 连接到便携式天平的平衡梁的仪表板通过安装在仪表板盖上的橡胶圈围绕仪表盘的活塞杆密封,并且当从平衡壳体突出的邻接脚是弹性变形时,弹性变形 从支撑表面抬起。 仪表盘布置在此之后被自动地保持在锁定位置,从而也通过弹簧加载的止动件固定平衡梁,直到制动器被手动释放。

    Spiral spring for instruments
    6.
    发明授权
    Spiral spring for instruments 失效
    螺旋弹簧用于仪器

    公开(公告)号:US3955809A

    公开(公告)日:1976-05-11

    申请号:US472843

    申请日:1974-05-23

    IPC分类号: F16F3/04 G12B3/08 F16F1/12

    CPC分类号: F16F3/04 G12B3/08

    摘要: A spiral spring arrangement consists essentially of two spiral springs. The spring arrangement comprises an immovable member, a rotatable shaft, and a rotatively movable member. One of the spiral springs has one end connected to the immovable member and the other end to the rotatable shaft. The other spiral spring has one end connected to the rotatable shaft and the other end to the rotatively movable member. The rotatably movable member serves as the point acting on the spiral springs. The two spiral springs are in a serial relationship, thus reducing the spring constant against rotation.

    摘要翻译: 螺旋弹簧装置基本上由两个螺旋弹簧组成。 弹簧装置包括不可移动构件,可旋转轴和可旋转运动构件。 螺旋弹簧中的一个具有连接到不可移动构件的一端,而另一端连接到可旋转轴。 另一个螺旋弹簧的一端连接到可旋转的轴,另一端连接到可转动的构件。 可旋转运动的部件用作作用在螺旋弹簧上的点。 两个螺旋弹簧呈串联关系,从而减小弹簧常数,防止旋转。

    Damping arrangement for a balance
    7.
    发明授权
    Damping arrangement for a balance 失效
    减排平衡

    公开(公告)号:US3842924A

    公开(公告)日:1974-10-22

    申请号:US32020473

    申请日:1973-01-02

    IPC分类号: G01G23/06 G01G23/08 G12B3/08

    CPC分类号: G01G23/06 G01G23/08

    摘要: A dashpot arrangement for damping the oscillations of the weighing pan on a balance has two cylinders, coaxial and open toward each other, which are mounted on the supporting structure of the balance, pistons attached to the pan and to each other and respectively movable in the cylinders in a predominantly axial direction, and piston rings radially freely movable on the pistons which maintain annular throttling gaps with the inner cylinder faces even though the piston movement has a minor component transverse to the common cylinder axis.

    Device for supporting and linearly moving an object
    8.
    发明授权
    Device for supporting and linearly moving an object 失效
    用于支撑和线性移动物体的装置

    公开(公告)号:US5287031A

    公开(公告)日:1994-02-15

    申请号:US935874

    申请日:1992-08-26

    摘要: A movable member is situated within a cylindrical member so as to be axially movable The movable member is supported by a magnetic bearing device in relation to the cylindrical member in a perfect non-contact manner. The cylindrical member and movable member are provided with an electromagnetic force generating mechanism for selectively applying an axial driving force to the movable member in a non-contact manner. The movable member is provided with an auxiliary plate having an inclined surface inclined with respect to the axis of the movable member. The axial position of the movable member is detected by the output of a detector which detects the distance between itself and the inclined surface. On the basis of the detected axial position and an objective position, the electromagnetic force generating mechanism is activated to set the axial position of the movable member.

    摘要翻译: 可移动部件位于圆筒形部件内以便可轴向移动。可移动部件以完全非接触的方式相对于圆柱形部件由磁性轴承装置支撑。 圆柱形构件和可动构件设置有用于以非接触方式选择性地向可动构件施加轴向驱动力的电磁力产生机构。 可动构件设置有具有相对于可动构件的轴线倾斜的倾斜表面的辅助板。 通过检测其自身与倾斜面之间的距离的检测器的输出来检测可动件的轴向位置。 基于检测到的轴向位置和目标位置,电磁力产生机构被启动以设定可动构件的轴向位置。

    Buffer device
    9.
    发明授权
    Buffer device 失效
    缓冲装置

    公开(公告)号:US4616737A

    公开(公告)日:1986-10-14

    申请号:US677330

    申请日:1984-12-03

    申请人: Makoto Orii

    发明人: Makoto Orii

    摘要: A buffer or damping device affixable as a unit to a rotating gear 22. The buffer includes a first gear 2, 3 engaging the rotating gear and a geared one-way clutch 4. The clutch is linked to a worm 7c on a shaft 7. A damping member 8 is fixed to the shaft and it expands under rotation to frictionally contact a sliding contact member 6 to thereby damp the rotation of the rotating member. All elements are enclosed in a case 1 and cover 9, except a portion of the first gear.

    摘要翻译: 缓冲器或阻尼装置可以作为旋转齿轮22的单元固定。缓冲器包括接合旋转齿轮的第一齿轮2,3和齿轮单向离合器4.离合器连接到轴7上的蜗杆7c。 阻尼构件8固定在轴上,并在其旋转下膨胀,以与滑动接触构件6摩擦接触,从而阻止旋转构件的旋转。 除了第一档的一部分之外,所有元件都封装在壳体1和盖9中。

    Precise movement device
    10.
    发明授权
    Precise movement device 失效
    精密移动装置

    公开(公告)号:US4615515A

    公开(公告)日:1986-10-07

    申请号:US681590

    申请日:1984-12-14

    摘要: A precise movement device of the type for guiding a movable member with hydrostatic pressure or a magnetic field and moving the movable member substantially without a friction. The device includes a mechanism for supporting the movable member by the use of hydrostatic pressure or a magnetic field and for guiding the movement of the movable member, and includes a mechanism for generating a resistance against the movement of the movable member when the movable member is to be stopped, such that the movable member can be stopped at a desired position accurately and in a reduced time.

    摘要翻译: 一种用于引导具有静水压力或磁场的可动件的类型的精确运动装置,并且基本上没有摩擦地移动可动件。 该装置包括用于通过使用静水压力或磁场来支撑可移动部件并用于引导可移动部件的移动的机构,并且包括用于当可移动部件为可动部件时产生抵抗可动部件的运动的阻力的机构 以使得可动构件可以精确地并且在缩短的时间内停止在期望的位置上。