Flexible piezoelectric sensor and manufacturing method thereof

Abstract

The invention discloses a flexible piezoelectric sensor and a manufacturing method thereof. The piezoelectric sensor structure comprises a negative electrode terminal, a first insulating packaging layer, a negative electrode layer, a flexible piezoelectric material layer, a positive electrode layer, a second insulating packaging layer, a positive electrode terminal and the like; the manufacturingof the flexible piezoelectric sensor mainly comprises that the prefabricated first insulating packaging layer and the prefabricated second insulating packaging layer are taken as carriers, the first insulating packaging layer and the second insulating packaging layer are sequentially and synchronously used for manufacturing electrode terminal mounting holes, the negative and positive electrode terminals are mounted, the negative and positive electrode layers are sprayed, a negative electrode flexible piezoelectric material layer and a positive electrode flexible piezoelectric material layer are sprayed, and the flexible piezoelectric material layer is formed through extruding and gluing, and the flexible piezoelectric sensor enters a uniform electric field for polarization. The flexible piezoelectric sensor is compact in structure, high in flexibility, integrally packaged, high in weather resistance, stable in performance and convenient to mount and maintain. The manufacturing method of the flexible piezoelectric sensor is simple and feasible in process, high in automatic production degree and high in production efficiency, and meanwhile, the flexible piezoelectric sensor with anysize is manufactured theoretically.

Description

technical field [0001] The invention belongs to the field of flexible piezoelectric sensors, in particular to a flexible piezoelectric sensor and a manufacturing method. Background technique [0002] The damage inside the structure will continue to accumulate as the working time increases and the working environment changes. These damages often lead to a sharp decline in the bearing capacity and safety of the structure, and even lead to the rapid destruction of the structure and the potential safety hazard of catastrophic failure. Piezoelectric sensors are increasingly used in structural health monitoring, but traditional piezoelectric elements cannot withstand large impact loads due to their brittle texture, high density and hardness. With the development of science and technology, modern aircraft, ships and large The geometric dimensions and structural forms of engineering structures are becoming more and more complex. It is a technology worthy of research to develop a n...

AI Technical Summary

Problems solved by technology

The system and method lack an essential polarization process for piezoelectric sensors, and only involve a piezoelectric thin film layered structure, which cannot be directly applied to the piezoelectric thin film sensor

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