Flexible sensor device based on 3D printing and manufacturing method thereof

Abstract

The invention provides a manufacturing method of a flexible self-energy-taking piezoelectric sensor device based on 3D printing. The manufacturing method comprises the following steps of S1, manufacturing a composite piezoelectric printing material which meets the performance requirements; S2, modeling a flexible piezoelectric sensor through three-dimensional drawing software to obtain a printing model of the flexible piezoelectric sensor; S3, curing and manufacturing the composite piezoelectric printing material through a 3D printer to obtain a flexible printing sensor; S4, conducting voltage polarization treatment on the flexible printing sensor to obtain the flexible piezoelectric sensor; and S5, enabling the flexible piezoelectric sensor to be externally connected with a self-energy-taking circuit to obtain the flexible self-energy-taking piezoelectric sensor device. According to the manufacturing method of the flexible self-energy-taking piezoelectric sensor device based on 3D printing, the printed sensor is subjected to voltage polarization treatment to obtain piezoelectric characteristics, the flexible piezoelectric sensor can obtain sensitive piezoelectric measurement characteristics, and finally the flexible piezoelectric sensor which can meet the comprehensive requirements for any shape structure, flexibility, sensitivity and the like is obtained.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric sensors, and in particular relates to a 3D printing-based flexible self-energy piezoelectric sensor device and a preparation method thereof. Background technique [0002] At present, flexible sensor technology is a very challenging and potential development direction, and has broad development prospects in the fields of artificial intelligence and medical health. Flexible materials generally have low elastic modulus, good stretchability, and good conformal ability, while 3D printing technology realizes the flexibility of molding, which can overcome the long processing cycle and complicated process of traditional manufacturing methods in the manufacturing process of flexible sensors. Shortcomings. [0003] With the development of various technologies, people have put forward higher requirements for sensors, and there is an urgent need for sensors with special structures that can adapt to var...

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Problems solved by technology

However, the above-mentioned patents also have certain shortcomings: the piezoelectric device indirectly measures the external force by being covered by a flexible material, and the elastic effect of the flexible material will increase the measurement error of the piezoelectric device to the real pressure to a certain extent; Quantity, location, and placement determine the sensitivity of different pressure measurement locations, which cannot meet the requirements for accurate detection of pressure at all locations, and the scope of application is relatively limited; the production cycle of flexible piezoelectric sensors is long, and the preparation process is greatly affected by environmental factors. ; The piezoelectric performance and energy harvesting of the flexible piezoelectric sensor were not analyzed

However, there are still some shortcomings in this patent: for example, the preparation of the preparation materials is relatively complicated, the manufacturing cycle of the sensor is long, and there are certain difficulties in the manufacture of sensors involving complex structures, and the measurement of specific structures requires careful design, etc.

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