Electromagnetic Flowmeter
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YAMATAKE HONEYWELL CO LTD
- Publication Date
- 2021-06-25
Smart Images
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Abstract
Description
technical field
[0001] The present invention relates to an electromagnetic flowmeter for measuring the flow rate of a fluid flowing in a measuring tube. Background technique
[0002] Among the electromagnetic flowmeters, in addition to the liquid-contact type in which the electrode provided on the inner wall surface of the measuring tube directly contacts the fluid to be measured to detect the electromotive force of the fluid, there is also a capacitive type (non-liquid-contacting type), that is, outside the measuring tube. A pair of surface electrodes are arranged on the side surfaces, and the electromotive force of the fluid is detected via the electrostatic capacitance between the fluid and the surface electrodes without contacting the fluid to be measured.
[0003] Figure 18 This is a cross-sectional view showing a configuration example of a capacitance type electromagnetic flowmeter. Figure 19 This is an explanatory diagram showing the measurement principle of an ele...