Highly Stabilized Phase-Shifted Fiber Bragg Grating Sensing System for Ultrasonic Detection


A part-shifted fiber Bragg grating (PS-FBG) sensing system based on Pound–Drever–Hall (PDH) technique is proposed and experimentally demonstrated for ultrasonic detection. The sensing system is extremely stabilized as the laser is frequency locked to the PS-FBG resonance using PDH technique. This theme reduces the result of laser intensity noise and permits high-sensitivity ultrasonic detection by monitoring the error signal of frequency detuning between the laser and therefore the PS-FBG resonance. Response of the frequency-locked PS-FBG to ultrasound is finished by testing the ultrasonic refection of a zero.4-mm plastic film, immersed in water. The sensor exhibits a high signal-to-noise ratio of 48 dB at 200 kHz and a noise-restricted detectable strain of eight.7 $textpvarepsilon $ on top of ten kHz. Frequency response of PS-FBG from 100 kHz to one MHz was additionally characterized.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :A Highly Efficient Composite Class-AB–AB Miller Op-Amp With High Gain and Stable From 15 pF Up To Very Large Capacitive Loads - 2018ABSTRACT:In this paper, a highly power-economical category-AB–AB Miller op-amp
PROJECT TITLE :Design of Area-Efficient and Highly Reliable RHBD 10T Memory Cell for Aerospace Applications - 2018ABSTRACT:In this brief, based on upset physical mechanism along with cheap transistor size, a sturdy 10T memory
PROJECT TITLE :Ultra-Low Power, Highly Reliable, and Nonvolatile Hybrid MTJ/CMOS Based Full-Adder for Future VLSI Design - 2017ABSTRACT:Very giant-scale integrated circuit style, based mostly on today's CMOS technologies, are
PROJECT TITLE: Voltage mode implementation of highly accurate analog multiplier circuit - 2015 ABSTRACT: A new four-quadrant multiplier circuit is presented in this project. Compared to the corresponding already published works,
PROJECT TITLE :Highly Sensitive, Room Temperature Methane Gas Sensor Based on Lead Sulfide Colloidal NanocrystalsABSTRACT:A solid-state methane gas sensor primarily based on PbS colloidal nanocrystals has been fabricated and tested

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry