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Gas sensor chip, sensor and sensor chip production method

A gas sensor and chip technology, applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of low production efficiency and high power consumption, and achieve the effect of improving consistency and reducing power consumption

Active Publication Date: 2007-10-24
郑州炜盛电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] For the gas sensor chip with the above structure, the heating electrode and the measuring electrode are both helical platinum wires, which makes the power consumption of the gas sensor chip relatively large, and the heating electrode needs to be set in the measuring electrode. Manual operation is required for sensor chips, and the production efficiency is relatively low

Method used

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  • Gas sensor chip, sensor and sensor chip production method
  • Gas sensor chip, sensor and sensor chip production method
  • Gas sensor chip, sensor and sensor chip production method

Examples

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Embodiment Construction

[0026] Fig. 2 is a schematic structural view of a specific embodiment 1 of a gas sensor chip, as shown in Fig. 2 , including a sheet-shaped ceramic substrate 1, an electrode conductive strip 2, a resistance heater 3 and a gas-sensitive coating 4, the electrode conductive strip 2, The resistance heater 3 and the gas-sensitive paint 4 are sequentially printed on the ceramic substrate 1 by screen printing, the electrode conductive strip 2 has two layers, and the resistance heater 3 is located between the two layers of electrode conductive strips 2 Between, the length, width, and thickness of the ceramic substrate 1 are 1 mm, 1 mm, and 0.10 mm, respectively, and the electrode conductive strip 2 and the resistance heater 3 are strip-shaped.

[0027] For the gas sensor chip, its preparation method is as follows:

[0028] Step 1: using ruthenium dioxide or gold doped with other compounds as the electrode paste to print the electrode paste on the ceramic substrate 1 by screen printing...

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Abstract

The invention relates to a gas sensor chip, comprising a sheet ceramic baseboard, an electrode conductive band, a resistance heater and a gas sensitive paint, wherein the electrode conductive band, the resistance heater and the gas sensitive paint via silk screen printing method are printed on the ceramic baseboard, the gas sensor chip can effectively reduce power consumption. And the silk screen printing method can significantly improve the producing efficiency and property consistence of the gas sensor. The invention also discloses a gas sensor with the gas sensor chip.

Description

technical field [0001] The invention belongs to the technical field of gas sensors, and in particular relates to a gas sensor, a chip structure adopted therefor, and a preparation method of a sensor chip. Background technique [0002] The structure of the current existing gas sensor chip is shown in Figure 1, including a measuring electrode 11 made of spiral metal platinum, a heating electrode 10 made of spiral metal platinum and a spherical shell 12, and the heating electrode 10 is set in the measurement Among the electrodes 11, the heating electrode 10 is not in contact with the measuring electrode 11, the heating electrode 10 and the measuring electrode 11 are all arranged in a spherical shell 12, the electrode leads at both ends of the measuring electrode 11 extend outside the shell 12, and the lead wires at one end of the heating electrode 10 The electrode leads extend outside the housing 12 . [0003] For the gas sensor chip with the above structure, the heating elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01N27/407G01N27/12
Inventor 祁明锋王利利王三良秦东振焦桂东
Owner 郑州炜盛电子科技有限公司
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