Flexible inductive pressure sensor array based on ferrite film and preparation method thereof

Abstract

The invention discloses a flexible inductive pressure sensor array based on a ferrite film, which includes a flexible base layer, the base layer is covered with a flexible wave-absorbing material, and a support is arranged between the flexible base layer and the flexible wave-absorbing material, The flexible base layer adopts a flexible planar coil, and the supporting member adopts elastic struts; the planar coil and the flexible wave-absorbing material are connected and separated by a plurality of elastic struts to form a flexible inductive pressure sensor. The invention provides a flexible inductive pressure sensor array based on a ferrite film, which has the performance characteristics of high sensitivity, fast response, high stability, strong anti-interference and high durability, and can be applied to wearable electronic devices.

Description

technical field [0001] The invention relates to the field of flexible electronic devices, in particular to an inductive flexible pressure sensing technology, in particular to a ferrite film-based flexible inductive pressure sensor array and a preparation method thereof. Background technique [0002] Flexible sensor is a sensor made by integrating functional elements on a flexible substrate, which has received a high degree of attention in both academic and industrial fields. Its flexible characteristics make the sensor have the characteristics of high ductility and free bending. It can be attached to objects with different surface shapes. The device is small in size and light in weight, and it is easy to carry around. Wide range of applications. Among them, the flexible pressure sensor is one of the common flexible sensors, which can provide important information such as the contact process between the surface and the external environment while adhering to the surface. Acc...

AI Technical Summary

Problems solved by technology

At present, domestic inductive sensors are mostly made of traditional rigid materials, and their application range is limited to traditional industrial fields, and there are problems such as insufficient sensitivity in the low strain range, making it difficult to apply to the field of wearable devices

In addition, the accuracy of the inductive sensor depends largely on the subsequent data acquisition system, and the data acquisition system of the inductive sensor is relatively complicated, and it is difficult to avoid problems such as low resolution

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