| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow rate measuring device capable of improving measuring accuracy, when each flow rate of a fluid passing through a plurality of measurement channels is different; and to provide an electromagnetic flowmeter.SOLUTION: In a flow rate measurement piece 30 used for an electromagnetic flowmeter 10, the cross section of a measurement channel 51B for a high flow rate is larger than the cross section of a measurement channel 52B for a low flow rate. Further, a first channel 100A having a comparatively high flow rate of passing preservation liquid is connected to the measurement channel 51B for a high flow rate, and on the other hand, a second channel 100B having a comparatively low flow rate of the passing preservation liquid is connected to the measurement channel 52B for a low flow rate.SELECTED DRAWING: Figure 7 |
