PULSE CODING TECHNIQUE FOR FIBER BRAGG GRATING SENSOR

ISBN 978-629-486-377-4

MYR45.00

 

 

Book Details

Author/Editor: Mohamed M. Elgaud, Mohd Saiful Dzulkefly Zan & Ahmad Ashrif A. Bakar

Pages: 160

Year of Publication: 2024

Description:

Fiber Bragg grating (FBG) sensor has been an attraction in the field of multi-point distributed sensing. Time domain multiplexing-based FBG sensor (TDM-FBG) has its unique advantages over other sensors in terms of multiplexing abilities and deployment reliability. However, the signal-to-noise-ratio (SNR) of the FBG signals is limited by the injected pulse power characteristics. Code division multiplexing technique (CDM) was incorporated into the TDM-FBG technique to improve the SNR without impairing the system key specification. This book discusses the issues that remained at large within the literature of coded TDM-FBGs, including the improvement of measurement range, speed, sensitivity, and SNR. The unique properties of Golay complementary codes (GCCs) were utilized to improve the overall performance of TDM-FBG for static strain measurement. With the deployment of GCCs, analysis confirmed a 30% higher strain measurement range than the single pulse case, and the signal to noise improvement ratio (SNIR) of 9 dB. This book highlights the characteristics of several coding techniques, recommending their abilities to improve FBG signal, noise backgrounds and processing time.

 

BISAC Subject Code(s): TEC007000, TEC030000

Prelims

Category: Technology