公开(公告)号：WO2014004602A1

公开(公告)日：2014-01-03

申请号：PCT/US2013/047758

申请日：2013-06-26

Applicant: FISHER CONTROLS INTERNATIONAL LLC

Inventor： ANDERSON, Shawn, W. ,  ANDERS, Roger ,  GRABAU, Ted, Dennis

IPC: G05B23/02 ,  F16K37/00

CPC classification number: G05B23/0235 ,  F16K37/0083 ,  G01N29/38 ,  G01N29/4427 ,  G05B2219/33326 ,  G05B2219/37351 ,  G05B2219/37432 ,  G05B2219/37534 ,  G05B2219/45006

Abstract: Methods and apparatus to use vibration data to determine a condition of a process control device are disclosed. An example method includes collecting first vibration data from a first sensor operatively coupled to a process control device during a calibration. The example method further includes calculating an operating threshold of the process control device based on the first vibration data, and determining a condition of the process control device if second vibration data associated with the process control device collected after the calibration exceeds the operating threshold.

Abstract translation: 公开了使用振动数据来确定过程控制装置的状态的方法和装置。 示例性方法包括在校准期间从可操作地耦合到过程控制装置的第一传感器收集第一振动数据。 该示例方法还包括基于第一振动数据计算过程控制装置的操作阈值，以及如果与校准之后收集的过程控制装置相关联的第二振动数据超过操作阈值，则确定过程控制装置的状况。

公开(公告)号：WO2018169786A1

公开(公告)日：2018-09-20

申请号：PCT/US2018/021766

申请日：2018-03-09

Applicant: FISHER CONTROLS INTERNATIONAL LLC

Inventor： JENSEN, Kurtis, Kevin ,  ANDERS, Roger

IPC: G05B19/042 ,  G05B19/43 ,  G05B19/44 ,  G05B19/46 ,  G05D7/06

Abstract: Methods and apparatus for controlling multiple valves as a single valve based on a coordinated control signal are disclosed. In some examples, an apparatus includes a valve controller to be operatively coupled to a first valve and a second valve. In some examples, the second valve is to be operatively positioned in series with the first valve. In some examples, the valve controller is to control a position of the first valve and a position of the second valve based on a coordinated control signal to be received by the valve controller.