KEYWORDS: Digital signal processing, Sensors, Control systems, Fiber Bragg gratings, Signal processing, Data conversion, Ferroelectric materials, Data processing, Signal detection, Temperature sensors
In this article, an embedded fiber Bragg grating temperature sensor system is proposed and researched. The
demodulating system controls a Piezoelectric Ceramic (PZT) with sawteeth wave to scan the matching grating, then do
photoelectric conversion using a detector, and use Digital Signal Processor (DSP) to find the max intensity. Meanwhile,
use PZT drive voltage to control the central wavelength of sensor grating to demodulate. Then use the USB interface
chip to realize the communication between DSP and the host computer, and send the collected data to the host computer.
Finally, the real time temperature can be inquired and stored through the inquiring interface programmed by computer.
The result demonstrates that this experimental system has the wave addressing range from 1540 to 1565 nm and the
temperature resolution of 0.1°C.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.