Pyroelectric ceramic material and preparation method thereof

A technology of pyroelectric ceramics and raw materials, which is applied in the field of functional ceramic materials, can solve the problems of increased phase transition temperature range, increased product cost, and false reporting, and achieves the effect of high pyroelectric coefficient
CN109851355AInactive Publication Date: 2019-06-07扬州江嘉科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
扬州江嘉科技有限公司
Publication Date
2019-06-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a pyroelectric ceramic material and a preparation method thereof. The prepared zirconium-rich pyroelectric ceramic material has high pyroelectric coefficient in the temperature range of 10-80 DEG and high figure of merit of detectivity. A pyroelectric infrared sensor manufactured bu using the ceramic material has a high-level sensor sensitivity in the temperature range of10-80 DEG C in the case of thick ceramic, for example, ceramic of 0.15 mm thick, and the requirements of manufacture of high performance infrared pyroelectric sensors are met.
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Description

technical field

[0001] The invention relates to a pyroelectric ceramic material and a preparation method thereof, in particular to a pyroelectric ceramic material with high pyroelectric coefficient, low dielectric loss, suitable dielectric constant and high detection merit value in a wide temperature range. The zirconium-rich pyroelectric material belongs to the technical field of functional ceramic materials. Background technique

[0002] The passive pyroelectric infrared sensor works by using the pyroelectric effect of the material, and it detects the target through the temperature difference between the target and the background. Although its response speed is not as good as that of the photon type, it is easy to use because it can be used at room temperature, has a wide spectral response, and has a wide operating frequency, and its sensitivity has nothing to do with wavelength. This sensor has high sensitivity and wide detection range, and is a highly reliable detector....

Claims

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