Abstract

We report a detailed investigation of nonresonant laser-induced thermal acoustics (LITA) for the single-shot measurement of the speed of sound (v S) in an oven containing room air. A model for the speed of sound that includes important acoustic relaxation effects is used to convert the speed of sound into temperature. A reference LITA channel is used to reduce uncertainties in v S. Comparing thermocouple temperatures with temperatures deduced from our v S measurements and model, we find the mean temperature difference from 300 to 650 K to be 1% (±2σ). The advantages of using a reference LITA channel are discussed.

© 1999 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Simultaneous velocimetry and thermometry of air by use of nonresonant heterodyned laser-induced thermal acoustics

Roger C. Hart, R. Jeffrey Balla, and G. C. Herring
Appl. Opt. 40(6) 965-968 (2001)

Submicrosecond temperature measurement in liquid water with laser-induced thermal acoustics

David W. Alderfer, G. C. Herring, Paul M. Danehy, Toshiharu Mizukaki, and Kazuyoshi Takayama
Appl. Opt. 44(14) 2818-2826 (2005)

Laser-induced thermal-acoustic velocimetry with heterodyne detection

Stefan Schlamp, Eric B. Cummings, and Thomas H. Sobota
Opt. Lett. 25(4) 224-226 (2000)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription