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High sensitivity liquid dielectric constant measuring probe

A technology for measuring the dielectric constant and probe, which is applied in the direction of measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., and can solve problems such as the influence of air bubbles that cannot be ruled out

Inactive Publication Date: 2006-05-10
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
  • High sensitivity liquid dielectric constant measuring probe

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Experimental program
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Embodiment Construction

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and in conjunction with an embodiment.

[0013] Such as figure 1 and figure 2 As shown, the probe consists of two parts: conventional coaxial wire and hollow slotted coaxial wire. Among them, the traditional coaxial cable is composed of a coaxial outer conductor 1 and a coaxial inner conductor 2, and the filler 3 between the coaxial outer conductor 1 and the coaxial inner conductor 2 is polytetrafluoroethylene; the hollow opening Slotted coaxial line is composed of tunable outer conductor 4, tunable inner conductor 5, one or several slots 6 on tunable outer conductor 4, and the space between tunable inner conductor 4 and tunable outer conductor 5 is filled with the measured medium . 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 tunable inner conductor 4 and t...

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PUM

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Abstract

A liquid dielectric constant measuring probe, comprising a coaxial outer conductor 1, a coaxial inner conductor 2, and a filler 3 between the coaxial outer conductor 1 and the coaxial inner conductor 2, and also includes a tunable outer conductor The conductor 4, the tunable inner conductor 5, and the slot 6 on the tunable outer conductor 4 form a hollow slotted coaxial line part, and the hollow slotted coaxial line part forms a coaxial resonant cavity with an open terminal, and the length of the resonant cavity passes Adjust the tunable outer conductor 4 and the tunable inner conductor 5 for tuning; the coaxial outer conductor 1 is partially thinned and connected with the tunable outer conductor 4, and the coaxial inner conductor 2 is partially hollow, and the hollow part is connected with the tunable inner conductor The conductor 5 is embedded or socketed, and one or several slots 6 are opened on the tunable outer conductor 4 .

Description

technical field [0001] The invention relates to a liquid equivalent dielectric constant measurement probe, in particular to an on-line measurement probe for the equivalent dielectric constant of a dilute solution chemical reaction 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 system is a n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/26G01N22/00G01N27/02G01N27/22
Inventor 黄卡玛闫丽萍刘长军赵翔陈星
Owner SICHUAN UNIV