A ceramic capacitor pressure core based on zirconium oxide

By embedding an alumina base layer in the zirconia matrix and using elastic diaphragm and sealing glass colloids, the structural strength and pressure measurement range of the ceramic capacitor pressure core are improved, and the problem of low sensitivity of the existing ceramic capacitor pressure core is solved, thus achieving the realization of the Higher accuracy and greater measurement range effects.

CN113310606BActive Publication Date: 2025-01-10SHENZHEN JUDESHOU TECH CO LTD
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Patent Information

Application Number
CN202110665735.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-16
Publication Date
2025-01-10
Estimated Expiration
2041-06-16

AI Technical Summary

Technical Problem

Due to the insufficient toughness of the use of alumina materials, the existing ceramic capacitor pressure cores have low sensitivity and narrow pressure measurement range, which is difficult to meet the actual pressure measurement needs.

Method used

Using a ceramic capacitive pressure core based on zirconia, the aluminum oxide base layer is embedded in the zirconia matrix, and the structural strength and sealing properties are improved by using elastic diaphragm and sealed glass colloids, thereby increasing the pressure measurement range and sensitivity.

Benefits of technology

It achieves a larger measurement range, higher accuracy, higher sensitivity and greater deformation, suitable for low pressure testing, better wear resistance and longer service life.

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Abstract

The invention discloses a ceramic capacitor pressure core based on zirconia, comprising: a ceramic substrate, the ceramic substrate comprising a first zirconia substrate and a first alumina substrate, a silk-screen electrode cavity is provided on the first zirconia substrate, and the first alumina substrate is printed in the silk-screen electrode cavity; a substrate electrode, the substrate electrode is printed on the first alumina substrate; an elastic diaphragm, the elastic diaphragm is arranged on the top of the ceramic substrate and is spliced ​​and fixed with the ceramic substrate; and a diaphragm electrode, the diaphragm electrode is printed on the elastic diaphragm, and the diaphragm electrode and the substrate electrode are arranged correspondingly and a gap is left. The ceramic capacitor pressure core based on zirconia improves the structure of the ceramic substrate, embeds the first alumina substrate into the first zirconia substrate, and improves the structural strength of the entire ceramic substrate while ensuring the normal operation of the substrate electrode, so that the pressure measurement range of the entire pressure core is expanded, the sensitivity is higher, and the practicality is stronger.
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Citation Information

Patent Citations

  • Zirconium oxide-based ceramic capacitor pressure core

    CN215573469U