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Grounded electromagnetic flow meter

An electromagnetic flowmeter and grounding element technology, which is applied in the application of electromagnetic flowmeters to detect fluid flow, volume/mass flow generated by electromagnetic effects, static electricity, etc. The effect of precision

Inactive Publication Date: 2015-01-14
中山欧麦克仪器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electromagnetic flowmeter has many advantages, but in the fluid pipeline, the charge generated by the friction between the fluid and the pipeline or the charge carried by other reasons will affect the detection current signal and affect the detection accuracy

Method used

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  • Grounded electromagnetic flow meter

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Embodiment Construction

[0016] refer to figure 1 , figure 1 It is a structural principle diagram of a specific embodiment of the present invention. As shown in the figure, a grounded electromagnetic flowmeter includes a converter 1, an excitation coil 2, an electrode 3, and a housing 7. The excitation coil 2 and the excitation drive circuit The electrode 3 is connected to the converter 1 through the signal line 5, the casing 7 covers the excitation coil 2 and the electrode 3, the casing 7 is connected to a grounding element 6, and the friction generated by the fluid and the pipeline Charges or charges carried by other reasons are grounded and derived to prevent such charges from affecting the detection current signal and ensure detection accuracy.

[0017] Further, the electrode 3 is provided with a shielding shell 4, the shielding shell 4 is connected to the grounding element 6, the signal line 5 is covered with a shielding sleeve, the shielding sleeve is connected to the grounding element 6, and t...

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Abstract

The invention discloses a grounded electromagnetic flow meter which comprises a converter, an excitation coil, electrodes and a shell. The excitation coil is connected with an excitation driving circuit, the electrodes are connected with the converter by signal wires, and the shell covers the excitation coil and the electrodes and is connected with a grounding element. The grounded electromagnetic flow meter has the advantages that charge generated by friction between liquid and pipelines or charge carried for other reasons can be led out, accordingly, influence of the charge on detection current signals can be prevented, and the detection precision can be guaranteed.

Description

technical field [0001] The invention relates to a grounding electromagnetic flowmeter. Background technique [0002] The electromagnetic flowmeter converts the volume signal of the conductive liquid flowing through the pipeline into an electrical signal through an electromagnetic inductor. The conversion principle is based on Faraday's law of electromagnetic induction. When the conductive liquid passes through the magnetic field and cuts the electromagnetic wire, an electromotive force will be generated. Through The flow rate of conductive liquid is measured by electromotive force. Electromagnetic flowmeter has many advantages, but in the fluid pipeline, the charge generated by the friction between the fluid and the pipeline or the charge carried by other reasons will affect the detection current signal and affect the detection accuracy. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a grounded ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/58H05F3/02
Inventor 石冰鑫曹文武阮金喜方燕珊
Owner 中山欧麦克仪器设备有限公司