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High sensitivity liquid dielectric constant measuring probe

A technology with dielectric constant and high sensitivity, which can be used in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., and can solve problems such as the influence of bubbles that cannot be excluded

Inactive Publication Date: 2004-03-17
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above probes cannot rule out the influence of air bubbles on the measurement results
Secondly, the above probes can only be used for dielectric constant measurement at fixed frequency points

Method used

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  • High sensitivity liquid dielectric constant measuring probe
  • High sensitivity liquid dielectric constant measuring probe

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Embodiment Construction

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and in conjunction with an embodiment.

[0014] Such as figure 1 with figure 2 As shown, the probe consists of two parts: conventional coaxial wire and hollow slotted coaxial wire. Among them, the traditional coaxial line is composed of an outer conductor 1 and an inner conductor 2, and polytetrafluoroethylene 3 is filled between the inner and outer conductors; the hollow slotted coaxial line is composed of a tunable outer conductor 4, a tunable inner conductor 5, and an upper outer conductor Or more than one slot 6 is jointly formed, and the measured medium is filled between the inner and outer conductors. The part of the hollow slotted coaxial line constitutes a coaxial resonant cavity with an open terminal, and its length ΔL is tuned by adjusting the inner and outer conductors 5 and 4 . In this embodiment, the threaded connection between the tunable outer c...

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Abstract

A high sensitivity liquid dielectric constant measuring probe, comprising a coaxial outer conductor, a coaxial inner conductor and packing filling between the inner conductor and the outer conductor,the coaxial outer conductor is cut thin partly and connected to the tunable outer conductor, the coaxial inner conductor is partly hollow, with the hollow position in in rabbet joint or cup joint with the tunable inner conductor, the length of the inner conductor and the outer conductor is all adjustable, a plurality of slots are arranged on the outer conductors.

Description

Technical field: [0001] The invention relates to a liquid equivalent dielectric constant measuring probe, in particular to a high-sensitivity measuring probe for on-line measurement of the equivalent dielectric constant of a dilute solution with water as a solvent. Background technique [0002] As early as 1967, N.H.Williams reported the experimental results of using microwaves to speed up chemical reactions. Since then, people have paid great attention to using microwaves to speed up and control chemical reactions. Now microwave has been widely used in petrochemical, food chemical, pharmaceutical chemical and other fields and has produced huge economic benefits. The study of the interaction between electromagnetic fields and chemical reaction systems has become a new interdisciplinary subject developed in recent years, and has been highly valued and extensively studied by many scientific and technological workers at home and abroad. [0003] Since the chemical reaction sys...

Claims

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Application Information

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IPC IPC(8): G01N27/02G01N27/22G01R27/26
Inventor 黄卡玛阎丽萍刘长军赵翔陈星
Owner SICHUAN UNIV
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