Flexible passive pressure sensor for railway monitoring

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Flexible passive pressure sensor for railway monitoring

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FU HAORAN / LIANG GUANWEN / WU YING / HONG CHENGPENG / LIU CHENGBIN / WAN ZHANGBO / BIAN XUECHENG / YANG CHAO / LU YITING / ZHANG YI / ... [more]

Abstract

The invention discloses a flexible passive pressure sensor for railway monitoring, which comprises an upper five-mode metamaterial film layer, a lower five-mode metamaterial film layer, a piezoelectric material film layer and a flexible packaging layer, and is characterized in that the piezoelectric material film layer is packaged in the flexible packaging layer and leads out piezoelectric signals through a signal line; the flexible packaging layer is bonded and fixed between the upper five-mode metamaterial thin film layer and the lower five-mode metamaterial thin film layer; the upper five-mode metamaterial film layer and the lower five-mode metamaterial film layer are made of five-mode metamaterials and flexible nanowires. The device is arranged between the elastic strip of the steel rail fastener and the steel rail, does not affect the operation safety of the railway, monitors the operation state of the railway in real time, and is stable in monitoring signal and long in service life.

本发明公开了一种铁路监测用柔性无源压力传感器，包括有上五模超材料薄膜层、下五模超材料薄膜层、压电材料薄膜层和柔性封装层，压电材料薄膜层封装于柔性封装层中并通过信号线将压电信号引出，柔性封装层粘接固定于上五模超材料薄膜层和下五模超材料薄膜层之间；上五模超材料薄膜层和下五模超材料薄膜层是由五模超材料和柔性纳米线制成。本发明设置在钢轨扣件的弹条和钢轨之间，不会对铁路运行安全造成影响，实时监测铁路的运行状态，监测信号稳定，使用寿命长。

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Document information

Title :

Flexible passive pressure sensor for railway monitoring

Additional title:

一种铁路监测用柔性无源压力传感器

Contributors:

FU HAORAN (author) / LIANG GUANWEN (author) / WU YING (author) / HONG CHENGPENG (author) / LIU CHENGBIN (author) / WAN ZHANGBO (author) / BIAN XUECHENG (author) / YANG CHAO (author) / LU YITING (author) / ZHANG YI (author)

Publication date :

2024-03-08

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC