Investigations on thermal and mechanical characteristics of PDMS embedded FBG sensors for wearable sensing applications

被引：0
作者：
Chalackal, Archana Thrikkaikuth [1 ]
Kanakambaran, Srijith [1 ]
机构：
[1] Indian Inst Informat Technol Design & Mfg, Dept Elect & Commun, Fiber Opt Sensing Lab, Chennai 600127, India
来源：
SMART MATERIALS AND STRUCTURES | 2025年 / 34卷 / 01期
关键词：
Fiber Bragg Gratings; optical fiber sensors; polydimethylsiloxane; temperature and strain sensing; PRESSURE SENSOR; FIBER; TEMPERATURE;
D O I：
10.1088/1361-665X/ad8e9e
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Fiber Bragg Grating (FBG) sensors embedded in polydimethylsiloxane (PDMS) are suitable for real-time monitoring of parameters like strain, temperature, force etc. This work investigates the thermal and mechanical properties of PDMS samples at mixing ratios of 6:1, 10:1, and 15:1 with embedded FBGs. The 10:1 sample showed the highest temperature sensitivity of 22.51 +/- 0.54 pm degrees C-1. Young's modulus values from mechanical characterization ranged from 2.20-8.16 MPa, 2.56-7.68 MPa, and 0.44-5.02 MPa for mixing ratios 6:1, 10:1, and 15:1, respectively. The highest force and strain sensitivities were 1.356 nm N-1 and 0.153 pm/mu epsilon for the 10:1 ratio, making it preferable for wearable sensors.
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页数：12
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