| 摘要 |
The present invention relates to a nuclear magnetic flowmeter which is to measure the flow rate of a medium (6) flowing in a measurement tube (5). The nuclear magnetic flowmeter has a magnetizing device (1) which is to magnetize the medium (6) flowing in the measurement tube (5) over a magnetization distance (7) according to a vertical shaft (8) of the measurement tube (5). The magnetizing device (1) is to generate magnetic fields (3, 4) used in magnetizing the medium (6) and has permanent magnets (2). The nuclear magnetic flowmeter has at least two magnetizing segments (9) which are continuously located in the vertical shaft (8) direction in the measurement tube (5). The magnetic fields (3, 4) have the same direction, or the magnetic fields (3, 4) have the same direction at different magnetism intensities over the magnetization distance (7) within the medium (6) in the whole magnetization distance (7). |
