Cart (Loading....) | Create Account
Close category search window
 

A PC based photo-acoustic instrumentation system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)

The development of a compact real-time photoacoustic system is described. The system is designed to measure hydrocarbon concentration levels in the range 0-200 ppm in oil industry process discharge water. A developmental system using the output from a Q switched Nd:YAG laser, frequency shifted using Raman scattering and a monochromator, allows spectral measurements in the range 1-2 μm to be made. A PC controlled acquisition system, with a 25 MHz sample rate, is used to automate the measurements and subsequent data analysis. The raw photo-acoustic signal is immersed in random noise and the fast acquisition system enables 4096 samples to be taken within the pulse repetition rate to obtain an adequate signal to noise ratio in real-time. Programmable electronics have been developed to reduce the digitisation errors to less than 0.5%. Further off line analysis using neural networks demonstrates the potential of the technique

Published in:

Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE  (Volume:3 )

Date of Conference:

Oct. 31 1994-Nov. 3 1994

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.