Electromagnetic flowmeter
By using feedback magnetic circuits and feedback magnetic circuit auxiliary components in the electromagnetic flowmeter, the problems of low measurement accuracy and serious flux leakage in the prior art are solved, and higher measurement accuracy and more effective flux feedback are achieved.
CN119901343APending Publication Date: 2025-04-29YOKOGAWA ELECTRIC CORP
Patent Information
- Application Number
- CN202411453787.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-26
- Filing Date
- 2024-10-17
- Publication Date
- 2025-04-29
Smart Images
Figure CN119901343A_ABST
Abstract
The present invention addresses the problem of improving the measurement accuracy of an electromagnetic flow meter. An electromagnetic flow meter (10) is provided with: an excitation coil (3) that is provided to a measurement tube (1) and generates a magnetic field in the direction perpendicular to the tube axis of the measurement tube (1); a feedback magnetic circuit (6) that is provided in the measurement tube (1) on a side surface in the circumferential direction of the tube axis, including the excitation coil (3), and that collects a magnetic field generated by the excitation coil (3) inside the measurement tube (1); and a feedback magnetic circuit auxiliary member that is provided on at least one of the outer diameter side and the inner diameter side of the excitation coil (3) in the direction perpendicular to the tube axis, and that assists the function of the feedback magnetic circuit (6).
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Citation Information
Patent Citations
electromagnetic flow meter detector
JP1993256674A
Electromagnetic flow meter
JP1997145435A
Wafer type electromagnetic flowmeter
JP2005172645A