Pressure sensor based on fiber bragg grating and photocuring technology and preparation method

• Main Authors: SUI QINGMEI, ZHANG FAYE, JIA LEI, ZHANG LEI, KANG MYEONG-SOON, ZHANG SISI
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The invention provides a pressure sensor based on a fiber bragg grating and a photocuring technology and a preparation method. The pressure sensor comprises a pressure deformation body and a fiber bragg grating sensor, the pressure deformation body is of an integrated structure and is sequentially divided into an upper layer structure, a middle layer structure and a lower layer structure from top to bottom. Wherein the upper-layer structure and the lower-layer structure are symmetrically distributed; a fiber bragg grating sensor is fixed on the middle layer structure, the middle layer structure is used for converting vertical pressure transmitted by the upper layer structure into axial tension, and the tension is measured through the fiber bragg grating sensor and serves as the measured pressure sensed by the upper layer structure. 本发明提出了一种基于光纤光栅和光固化技术的压力传感器及制备方法，包括：压力形变体和光纤光栅传感器；所述压力形变体为一体化整体结构，从上至下依次划分为上层结构、中间层结构和下层结构；其中，所述上层结构及下层结构呈对称分布；所述中间层结构固定有光纤光栅传感器，所述中间层结构用于将上层结构传递的垂直压力转换为轴向拉力，并通过光纤光栅传感器测量该拉力，作为测量的上层