Abstract
Sensor networks provide a physical foundation for distributed data acquisition. Monitoring voltage signals at nodes allows real-time assessment of grid operation. Piezoelectric grating voltage sensors offer advantages of smaller size, lower cost, strong electromagnetic shielding, and easy network integration, appropriating for intelligent voltage sensing. This study investigates the relationship between device coupling mode and output characteristics of these sensors to improve their performance and advance sensor network applications. Using solid mechanics theory, a device coupling mechanical model is established for a temperature-independent piezoelectric grating voltage sensor employing dual-grating spectral overlay demodulation. Then, a flexible structure with variable stiffness is designed to couple the PZT and FBG. Results show linear voltage sensing in the range of 0–6 kV and 0–1500 N using the flexible coupling structure, with a reduction of spectral shift by 50.86–87.82% through structural design. This research provides insights for enhancing sensor performance and improving the application of optical voltage sensors.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
