Abstract

An infrared thermograph technique with an 8–12-µm spectral range was used to measure transient two-dimensional profiles of liquid (1-propanol) surface temperatures. An IR camera was placed over the liquid, allowing us to observe the fuel surface through propanol vapor. To use this technique, one must know the emissivity of the liquid surface and the IR absorption of both the liquid propanol and the propanol vapor. The emissivity of the liquid propanol was determined with a fine thermocouple temperature measurement, IR absorption with the propanol vapor was calibrated with a blackbody source, and IR absorption with a liquid propanol was theoretically estimated. The accuracy of our infrared thermograph technique proved to be better than 97% in detecting the liquid-surface temperature with a temperature sensitivity of 0.1 °C and a time response of 30 ms.

© 2000 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Simultaneous measurement of temperature and chemicalspecies concentrations with a holographic interferometer and infrared absorption

Tadashi Konishi, Akihiko Ito, Yuji Kudo, Akira Narumi, Kozo Saito, John Baker, and Peter M. Struk
Appl. Opt. 45(22) 5725-5732 (2006)

Transient two-dimensional fuel-concentration measurement technique

Tadashi Konishi, Syuji Naka, Akihiko Ito, and Kozo Saito
Appl. Opt. 36(33) 8815-8819 (1997)

Digital camera measurements of soot temperature and soot volume fraction in axisymmetric flames

Haiqing Guo, Jose A. Castillo, and Peter B. Sunderland
Appl. Opt. 52(33) 8040-8047 (2013)

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 (11)

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 (14)

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