Preparation method of seven-electrode conductivity sensor

A conductivity sensor and seven-electrode technology, which is applied in the field of sensor research, can solve the problems of complex preparation process of the seven-electrode conductivity sensor, the inability to integrate the conductivity cell and metal electrodes, and the inability to effectively control the performance of the sensor in a wide range, etc., to achieve Multifunctional integration, low cost, and adjustable performance

Active Publication Date: 2021-10-12
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems that the existing seven-electrode conductivity sensor has complex preparation process, the conductivity cell and the metal electrode cannot be integrally formed, the cost is high, the material selection is single, and the performance of the sensor cannot be effectively regulated in a wide range, the purpose of the present invention is to provide a multi-layer based A new seven-electrode conductivity sensor based on co-fired ceramic technology and its preparation method

Method used

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  • Preparation method of seven-electrode conductivity sensor
  • Preparation method of seven-electrode conductivity sensor
  • Preparation method of seven-electrode conductivity sensor

Examples

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Effect test

Embodiment 1

[0046] Example 1: Preparation of LTCC seven-electrode conductivity sensor

[0047] (1) LTCC ceramic raw porcelain tape is obtained by tape casting of LTCC ceramic slurry. The components of the LTCC ceramic slurry include: 50wt% calcium borosilicate glass-ceramic powder, 38wt% xylene solvent, 6wt% PVB binder, 4wt% castor oil dispersant and 2wt% polyethylene Diol plasticizer. The thickness of the obtained LTCC ceramic green tape is 50 μm;

[0048] (2) According to the designed punching position, punch holes on the surface of the LTCC ceramic green tape material, and then fill the holes with commercial gold electrode slurry to form a LTCC ceramic green tape with through holes; then, use screen printing Process The gold electrode paste is printed on the surface of the LTCC green ceramic belt material with through holes according to the planar pattern of the annular inner electrode and the outer electrode, and then placed in an oven at 80°C for drying. Among them, the LTCC ceram...

Embodiment 2

[0052] Example 2: Preparation of HTCC seven-electrode conductivity sensor

[0053] (1) HTCC ceramic raw porcelain tape is obtained by tape casting of HTCC ceramic slurry. The components of the HTCC ceramic slurry include: 50wt% alumina ceramic powder, 38wt% xylene solvent, 6wt% PVB binder, 4wt% castor oil dispersant and 2wt% polyethylene glycol plasticizer. ; The thickness of the resulting HTCC ceramic raw porcelain tape is 50 μm;

[0054] (2) According to the designed punching position, punch holes on the surface of the HTCC ceramic green tape material, and then fill the holes with commercial platinum electrode slurry to form a HTCC green tape with through holes; then, use the screen printing process The platinum electrode paste was printed on the surface of the LTCC green ceramic belt material with through holes according to the planar pattern of the ring-shaped inner electrode and the outer electrode, and then placed in an oven at 80°C to dry for use. Among them, the mat...

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Abstract

The invention relates to a preparation method of a seven-electrode conductivity sensor, in particular to the seven-electrode conductivity sensor and the preparation method of the seven-electrode conductivity sensor. The seven-electrode conductivity sensor comprises a circular-tube-shaped conductivity cell made of a ceramic material, seven metal circular ring inner electrodes which are sequentially distributed on the inner wall of the ceramic circular-tube-shaped conductance cell in parallel, seven metal outer electrodes which are located on the outer wall of the ceramic circular-tube-shaped conductance cell, and through hole metal electrodes which are used for connecting the metal circular ring inner electrodes and the metal outer electrodes. The ceramic material is an HTCC ceramic material or an LTCC ceramic material which can be co-fired with metal.

Description

technical field [0001] The invention relates to a preparation method of a seven-electrode conductivity sensor, in particular to a seven-electrode conductivity sensor and a preparation method thereof, belonging to the field of sensor research. Background technique [0002] Conductivity sensor is a type of sensor used to measure the conductivity of various liquids, and is widely used in food, pharmaceutical, environmental protection, chemical and marine research and development and other fields. With the rapid development of my country's marine monitoring technology and marine equipment, the demand for independent high-performance seawater conductivity sensors is increasing. Therefore, it is of great significance to develop new seawater conductivity sensors suitable for different application scenarios. According to different measurement principles and methods, seawater conductivity sensors are mainly divided into electrode-type conductivity sensors and inductive-type conductiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/22B81C3/00
CPCG01R27/22B81C3/008
Inventor 马名生刘峰张发强刘志甫
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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