Magnetic Force Compensator for a Pneumatic Positioner

    公开(公告)号:US20220349425A1

    公开(公告)日:2022-11-03

    申请号:US17732904

    申请日:2022-04-29

    Applicant: ABB Schweiz AG

    Abstract: A magnetic force compensator for at least partially compensating a closing force required to shift a valve of a pneumatic positioner into a closed position using a magnetic device, the magnetic device including a permanent magnet; and a magnetic counterpart; wherein the magnetic device and the magnetic counterpart are configured to interact to create an attracting force for the at least partially compensation of the closing force; and wherein the magnetic force compensator is configured to be mechanically coupled to the valve of the pneumatic positioner.

    Measurement System for Determining a Physical Parameter of a Pipe-Fluid System

    公开(公告)号:US20220252494A1

    公开(公告)日:2022-08-11

    申请号:US17588278

    申请日:2022-01-29

    Applicant: ABB Schweiz AG

    Abstract: A measurement system for determining a physical parameter of a pipe-fluid system includes a pair of confining elements configured to decrease surface vibration deformations at an outer surface of each end of the pipe-fluid system; wherein each confining element comprise a supporting frame configured to be detachably mounted on a pipe of the pipe-fluid system; and a fixation element configured to be detachably mounted for mechanically coupling the supporting frame with an outer surface of the pipe; an excitation system, configured to generate a mechanical vibration spectrum at a surface of the pipe-fluid system; and a vibration measurement device configured to be mechanically coupled to an outer surface of the pipe-fluid system, and configured to provide a mechanical vibration spectrum of the pipe-fluid system.

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