Laser-based thermographic visualization and identification of gases

Heinz Haferkamp; Dirk Seebaum; Ulrich Schroeder; Oliver Thuerk

doi:10.1117/12.274711

22 May 1997 Laser-based thermographic visualization and identification of gases

Heinz Haferkamp, Dirk Seebaum, Ulrich Schroeder, Oliver Thuerk

Proceedings Volume 3106, Spectroscopic Atmospheric Monitoring Techniques; (1997) https://doi.org/10.1117/12.274711
Event: Environmental Sensing III, 1997, Munich, Germany

Abstract

This paper reports on investigations regarding the visualization of environmental relevant gases normally invisible to the human eye. The principle of this system is based on the backscatter absorption gas imaging technique developed by Lawrence Livermore National Laboratory and Laser Imaging Systems. Main advantages of this approach in comparison to conventional laser-based remote gas-sensing methods are reachable speed of localization, high sensitivity as well as the detection of multileakages. The applied method is based on infrared (IR)-technology consisting of a thermal imaging device and a tunable CO₂-laser. Main aim of a project carried out at the Laser Zentrum Hannover e.V. is the computer based processing of spectroscopic and IR-image information provided by this technique. For this, several important parameters like the wavelength tuning precision, the dependence of the wavelength on the average output power of the laser source as well as the optical resolution have been investigated. The results show, that the BAGI-technology offers a large potential for future developments related to the observation of transparent gases. In addition to this the authors presents a new concept for an enhanced system that would not only be able to visualize gases but also capable of determining their direction of moving, computing their volume and forecasting their possible further spreading.

Citation Download Citation

Heinz Haferkamp, Dirk Seebaum, Ulrich Schroeder, and Oliver Thuerk "Laser-based thermographic visualization and identification of gases", Proc. SPIE 3106, Spectroscopic Atmospheric Monitoring Techniques, (22 May 1997); https://doi.org/10.1117/12.274711

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Visualization

Gases

Absorption

Laser sources

Optical resolution

Thermography

Imaging systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years