| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus and a method of a simple constitution for measuring density of a fluid, capable of accurate density measurement. SOLUTION: A flywheel containing a sample to be measured inside is suspended as a rotating oscillator. The density of the sample is computed on the basis of changes in the resonance frequency of the oscillator. COPYRIGHT: (C)2007,JPO&INPIT
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