公开(公告)号：US20250035472A1

公开(公告)日：2025-01-30

申请号：US18715566

申请日：2022-11-28

Applicant: Endress+Hauser Flowtec AG

Inventor： Florent Tschambser ,  Tulio Paiva Galvao ,  Werner Wohlgemuth ,  Pierre-Jean Ober

IPC: G01F1/60 ,  G01F1/58

Abstract: A method for operating a magnetic-inductive flowmeter includes: applying a first voltage signal to a device for generating a magnetic field, the first voltage signal being divided into time intervals, each having a first time sub-interval, in which a first voltage is applied to the device, wherein the first voltage is controlled such that a deviation of the coil current from a predetermined coil current target value during a measurement interval is minimized, wherein the coil current target value is constant for the entire first voltage signal; and applying a second voltage signal to the device, the second voltage signal being divided into time intervals, each having a second time sub-interval, in which a second voltage is applied to the device, wherein the second voltage is controlled such that a deviation of a control function from a control target value is minimized.

公开(公告)号：US20220388085A1

公开(公告)日：2022-12-08

申请号：US17756001

申请日：2020-11-09

Applicant: Endress+Hauser Flowtec AG

Inventor： Lüder Bosse ,  Simon Mariager ,  Pierre-Jean Ober ,  Werner Wohlgemuth

IPC: B23K9/08 ,  B23K9/167

Abstract: A directing apparatus for orienting an arc of an arc welding device for arc welding, in particular for TIG welding, using a magnetically moved arc, comprising: a retaining device having an opening for receiving a welding head of the arc welding device; one or more solenoid coils for forming a magnetic field for deflecting an arc generated by a welding device in the opening; and at least two bent pole shoes comprising at least two legs for focusing the magnetic field, a first of the legs of each pole shoe being affixed to the retaining device and/or to the solenoid coil and a second of the legs being oriented at an angle of less than 130° to the first leg.