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    Monitoring apparatus and method for cycling elements
    2.
    发明授权
    Monitoring apparatus and method for cycling elements 失效
    监测装置和循环元件的方法

    公开(公告)号：US3609548A

    公开(公告)日：1971-09-28

    申请号：US3609548D

    申请日：1968-11-05

    申请人： IMPROVED MACHINERY INC

    发明人： ALLARD HARRIE M ,  CARLSON JOHN F ,  GODLEY PHILIP

    IPC分类号： G01P3/52 ,  G01P3/56

    CPC分类号： G01P3/52

    摘要： This is an apparatus for monitoring the movement of a moveable member which moves from an initial position to a second position at varying speeds. A timer is actuated when the member moves from its initial position. A component in an electrical circuit connected to the member produces an electrical signal proportional to the instantaneous position of the member. An electrical indication which is responsive to the signal produces a final indication at the end of a predetermined time period which is a function of the speeds of the member. A low alarm is actuated or a high alarm is actuated if the distance of the moveable member from the initial position at the end of the predetermined time period is less or more respectively than desired.