Particle monitor for throttled pumping systems
    10.
    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分类号: G01N15/02

    摘要: 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.

    摘要翻译: 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。