公开(公告)号：WO2007139611A2

公开(公告)日：2007-12-06

申请号：PCT/US2007/007394

申请日：2007-03-26

Applicant: ROSEMOUNT INCORPORATED ,  HEDTKE, Robert

Inventor： HEDTKE, Robert

IPC: G01L7/00

CPC classification number: G01L19/0007 ,  B65H57/14 ,  B65H57/18 ,  B65H75/4452

Abstract: A process control system includes a transmitter having transmitter circuitry, a sensor, a remote sensing apparatus, a linkage and a slack take-up device. The sensor senses a process variable of a process fluid. The remote sensing apparatus communicates with the process fluid. The linkage communicates between the transmitter and the process fluid. The slack take-up device selectively adjusts a relative length of the linkage between the transmitter and the remote sensing apparatus.

Abstract translation: 过程控制系统包括具有发射器电路，传感器，遥感装置，连杆机构和松弛卷取装置的发射器。 传感器感测过程流体的过程变量。 遥感设备与过程流体通信。 连杆在变送器和过程流体之间通信。 松弛卷取装置选择性地调节发射器和遥感装置之间的连杆的相对长度。

公开(公告)号：WO2009155307A3

公开(公告)日：2009-12-23

申请号：PCT/US2009/047594

申请日：2009-06-17

Applicant: ROSEMOUNT INCORPORATED ,  PIHLAJA, Roger, Kenneth ,  MILLER, John, Philip

Inventor： PIHLAJA, Roger, Kenneth ,  MILLER, John, Philip

IPC: B01D3/00 ,  C02F1/04

Abstract: A method comprises sensing a differential pressure signal [64, 74], filtering the differential pressure signal [66, 76], generating a flooding indicator as a function of the filtered differential pressure signal, and indicating the onset of flooding [70, 80]. The differential pressure signal is sensed along a distillation flow path [16]. The filtered differential pressure signal is responsive to a phase inversion along the flow path, and the flooding indicator is responsive to an onset of a flooding condition, based on the phase inversion. The onset of the flooding condition is indicated based on a change in the flooding indicator.