Magnetic vortex street flowmeter

A vortex flowmeter, electromagnetic technology, applied in the field of flowmeter, can solve the problems of high production cost, affecting the measurement result, affecting the normal generation of eddy current, etc., and achieve the effect of reducing production cost and accurate small flow rate
CN1831487AInactive Publication Date: 2006-09-13滁州市金科仪器仪表有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
滁州市金科仪器仪表有限公司
Publication Date
2006-09-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A vortex street flowmeter of electromagnetic type is featured as setting triangular column in flow tube, setting probe at back of triangular column, setting permanent magnet at flow tube external certain position corresponding to said probe for structuring signal transducer by probe and permanent magnet, applying needle form conductor as probe being suspended vertically at center of flow tube, setting probe tail portion at outside of flow tube and connecting it to wiring terminal used to lead out detection signal.
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Description

Technical field:

[0001] This invention relates to metering, and more particularly to a flow meter. Background technique:

[0002] Vortex flowmeters are used in the detection of liquid flow, and are widely used in petroleum, chemical, food, pharmaceutical, smelting and other industries at home and abroad. The traditional vortex flowmeter consists of a flow tube 1, a triangular column 2, a sensor 8, a signal processing system 5, and a display 6. Its structural principle is as follows: figure 1 As shown, according to the Karman vortex street principle, when there is fluid flowing in the flow tube 1, due to the existence of the triangular column 2, resistance will be generated, and the fluid will be shunted. In this way, an eddy current will be generated in front of the sensor 8, and the sensor 8 will be induced by the eddy current. Signals, and transmit their quantity to the signal processing system 5, after analysis and calculation, it will be displayed in digital form on the...

Claims

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