Abstract

The hygrometer described is continuous-indicating; a value of the humidity is obtained by balancing a column of atmospheric air against a column of air saturated with water vapor and observing the effect, on a suspended vane, of the difference of pressure due to the different densities. The instrument used in the investigation is more sensitive than the Regnault-Alluard type of dew-point hygrometer and can be made a hundred times as sensitive if required.

© 1926 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Mars laser hygrometer

Christopher R. Webster, Gregory J. Flesch, Kamjou Mansour, Robert Haberle, and Jill Bauman
Appl. Opt. 43(22) 4436-4445 (2004)

Wavelength-modulation laser hygrometer for ultrasensitive detection of water vapor in semiconductor gases

David Christian Hovde, Joseph T. Hodges, Gregory E. Scace, and Joel A. Silver
Appl. Opt. 40(6) 829-839 (2001)

Airborne measurements of humidity using a single-mode Pb–salt diode laser

Joel A. Silver and Alan C. Stanton
Appl. Opt. 26(13) 2558-2566 (1987)

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 (5)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (2)

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