A flexible patch sensor

Abstract

The present invention proposes a flexible patch sensor, including: a piezoelectric material layer, which produces a piezoelectric effect; a first electrode layer, which is formed adjacent to the upper part of the piezoelectric material layer; a second electrode layer, which is adjacent to the A lower portion of the piezoelectric material layer is formed; a first dielectric adhesive layer is formed on the upper portion of the first electrode layer; a second dielectric adhesive layer is formed on the lower portion of the second electrode layer; the first a polyimide film layer formed on the upper portion of the first dielectric adhesive layer; a second polyimide film layer formed on the lower portion of the second dielectric adhesive layer; the piezoelectric The material layer is horizontally arranged with a plurality of piezoelectric long plates made of piezoelectric fiber composite material; the gaps between the piezoelectric long plates are filled with epoxy resin.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a flexible patch sensor. Background technique [0002] Conventional piezoelectric elements are made of hard materials, and it is difficult to simply, firmly, and flatly attach them to wide, flat but high-speed rotating structures such as wind turbine blades and helicopter rotor blades using adhesives. In addition, since it is not flexible, there is a problem that it is difficult to attach all surfaces to a structure having a three-dimensional curvature and use it. [0003] In addition, due to inflexibility, the entire surface of the sensor cannot be attached to the structure. There are problems in the precise measurement function of deformation, the generation of vibration in the sound wave or ultrasonic wave band, and the function of sensing structural defects by receiving reflected waves, and the use of vibration And the function of pressure to obtain electric energy is r...

AI Technical Summary

Problems solved by technology

[0002] Conventional piezoelectric elements are made of hard materials, and it is difficult to simply, firmly, and flatly attach them to wide, flat but high-speed rotating structures such as wind turbine blades and helicopter rotor blades using adhesives. In addition, due to lack of flexibility, there is a problem that it is difficult to attach the entire surface to a structure with three-dimensional curvature for use.

[0003] In addition, due to inflexibility, the entire surface of the sensor cannot be attached to the structure. There are problems in the precise measurement function of deformation, the generation of vibration in the sound wave or ultrasonic wave band, and the function of sensing structural defects by receiving reflected waves, and the use of vibration and the decline in the function of obtaining electrical energy under pressure

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