G - Physics – 01 – N
Patent
G - Physics
01
N
73/3
G01N 9/00 (2006.01)
Patent
CA 1232152
- 7 - ABSTRACT Apparatus for use in measuring fluid density comprises a thin tube 16 carrying the fluid and coiled between fixed ends 12 and 14. The coil is excited to spring resonance by means of opposed solenoids S1 and S2 driven in a feedback loop from a central pick- up 28. The resonant frequency is measured and is indicative of the mass of the fluid contained in the coil and thereby of the fluid density.
478319
Blake-Coleman Barry C.
Clarke David J.
Goudreau Gage Dubuc
Public Health Laboratory Service Board Limited
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