Document Detail

Aligning pitch for measurements of the shape of captive bubbles.
MedLine Citation:
PMID:  23185108     Owner:  NLM     Status:  Publisher    
The first step required for the determination of surface tension from the shape of a captive bubble is the correct alignment of both the solid support against which the bubble floats and the camera used to record its profile. The solid support should be perpendicular to the gravitationally vertical axis. The camera used to visualize the bubble must be aligned to its axis of symmetry. Alignment of roll for both the camera and solid support is straightforward. For well-collimated light, yaw is unimportant. We show here how to align pitch, first adjusting the camera relative to the gravitational vertical, and then adjusting an agarose dome used as a ceiling above captive bubbles within the visual frame of reference.
Hamed Khoojinian; Jim P Goodarzi; Stephen B Hall
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-2
Journal Detail:
Title:  Colloids and surfaces. A, Physicochemical and engineering aspects     Volume:  397     ISSN:  0927-7757     ISO Abbreviation:  Colloids Surf A Physicochem Eng Asp     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-11-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9891752     Medline TA:  Colloids Surf A Physicochem Eng Asp     Country:  -    
Other Details:
Languages:  ENG     Pagination:  59-62     Citation Subset:  -    
Departments of Biochemistry & Molecular Biology, Medicine, and Physiology & Pharmacology, Oregon Health & Science University, Portland, OR 97239-3098, United States.
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