Industrial capacitively coupled contactless conductivity online measurement device and method

A non-contact conductance and capacitive coupling technology, applied in the direction of material resistance, can solve problems such as the inability to realize simple connection of industrial metal pipes, and differences in application environments, so as to overcome electrode polarization and electrochemical corrosion, simple connection, and improve accuracy Effect
CN102269726BActive Publication Date: 2013-06-05ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2013-06-05

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Abstract

The invention discloses an industrial capacitively coupled contactless conductivity online measurement device and method. The device comprises an alternating current excitation source, an insulated pipeline, an exciting electrode, a detection electrode, an inductance module, a metal shield, a metal isolation plate, a metal flange connecting part, a first wire connecting terminal, a second wire connecting terminal, a signal processing module, a data acquisition module and a computer. The invention realizes the conductivity online measurement on an industrial conventional metal pipeline throughthe capacitively coupled contactless conductivity measurement technology. By using the metal flange connecting part, the insulated pipeline of the device can be conveniently connected with the metal pipeline on an industrial site. Simultaneously, the measured pipeline and the electrodes are mounted in a metal shielding housing, thereby improving the stability and the anti-interference ability of the device. The corresponding device has the advantages of high resolution, simple structure, non-invasive operation, no impacts on fluid in the pipeline and the like, thereby providing a helpful reference for non-invasive online measurement of the conductivity of liquid in the process industrial conventional metal pipeline.
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Description

technical field

[0001] The invention relates to conductance detection technology, in particular to an industrial capacitive coupling type non-contact conductance online measuring device and method. Background technique

[0002] The liquid phase system in the pipeline widely exists in the scientific research and production process of metallurgy, chemical engineering, biomedicine, environmental protection and sewage treatment and other departments. The conductivity is one of the basic physical parameters of the liquid. Other characteristic parameters of the liquid in the pipeline play an important role, such as concentration, composition, chemical reaction rate, etc. It is precisely because many differences in physical and chemical properties of liquids will be reflected in changes in its conductivity, so the online measurement of the conductivity of liquids in pipelines has a wide range of applications and important research significance in production and scientific research....

Claims

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