NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Densitometry By Acoustic Levitation"Static" and "dynamic" methods developed for measuring mass density of acoustically levitated solid particle or liquid drop. "Static" method, unknown density of sample found by comparison with another sample of known density. "Dynamic" method practiced with or without gravitational field. Advantages over conventional density-measuring techniques: sample does not have to make contact with container or other solid surface, size and shape of samples do not affect measurement significantly, sound field does not have to be know in detail, and sample can be smaller than microliter. Detailed knowledge of acoustic field not necessary.
Document ID
19890000080
Document Type
Other - NASA Tech Brief
Authors
Trinh, Eugene H. (Caltech)
Date Acquired
August 13, 2013
Publication Date
February 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 2
ISSN: 0145-319X
Subject Category
MECHANICS
Report/Patent Number
NPO-16849
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.