Modular particle monitor for vacuum process equipment
    7.
    发明授权
    Modular particle monitor for vacuum process equipment 失效
    真空工艺设备的模块式颗粒监测仪

    公开(公告)号:US5436465A

    公开(公告)日:1995-07-25

    申请号:US60904

    申请日:1993-05-13

    CPC classification number: G01N21/53

    Abstract: An apparatus and a method provide a modular design for a particle monitor of external design used in a vacuum process equipment. In one embodiment, the key elements, i.e. laser assembly, the detection module, the beam stop and a darkened surface opposite the detection module, can be independently mounted on a pump line. The particle monitors of the present invention can be mounted on both straight sections and bends of the pump line. Each key element can be accessed independently of other key elements for repair and service.

    Abstract translation: 一种设备和方法为真空处理设备中使用的外部设计的粒子监测器提供了模块化设计。 在一个实施例中,关键元件,即激光组件,检测模块,光束挡块和与检测模块相对的变暗表面可以独立地安装在泵管线上。 本发明的颗粒监测器可以安装在泵管的直线段和弯管上。 每个关键元素可以独立于其他关键元素进行修复和维护。

    Particle monitor for throttled pumping systems
    8.
    发明授权
    Particle monitor for throttled pumping systems 失效
    用于节流泵系统的颗粒监视器

    公开(公告)号:US5534706A

    公开(公告)日:1996-07-09

    申请号:US207329

    申请日:1994-03-07

    CPC classification number: G01N15/02

    Abstract: A method for accomplishing particle monitoring above the throttle valve of a turbo pump provides a particle sensor which is built into the throttle valve in such a way that it is insensitive to local plasma glows. Furthermore, the particle sensor is placed such that a particle monitoring laser beam of the particle sensor is offset from the centerline of the pipe, so as to maximize exposure to process gas flow which is diverted to the periphery of the pipe by the position of a butterfly valve plate.

    Abstract translation: 在涡轮泵的节气门上方实现颗粒监测的方法提供了一种内置在节流阀中的颗粒传感器,使得其对局部等离子体发光不敏感。 此外,粒子传感器被放置成使得粒子传感器的粒子监测激光束偏离管道的中心线,以便最大程度地暴露于通过位置的管道的转移到管道的周围的处理气体流 蝶阀板。

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