"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.
Densitometry By Acoustic Levitation
NASA Tech Briefs ; 13 , 2
1989-02-01
Miscellaneous
No indication
English
NTRS | 1985
|NTRS | 1984
|Improved acoustic levitation apparatus
NTRS | 1980
|Variable-Position Acoustic Levitation
NTRS | 1983
|Acoustic levitation materials processing systems
Tema Archive | 1979
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