发明名称 |
Vibration type density meter |
摘要 |
A vibration type density meter includes a mechanical oscillator or resonator having a resonance frequency variable with the density of a specimen fluid around the oscillator. The resonator is of a cylindrical configuration with flanges at the ends thereof, at least one of the ends being open for introducing specimen fluid into the resonator. The meter also includes means for exciting the resonator, means for detecting oscillations of the cylindrical resonator, a cover coupled to the flanges of the resonator in surrounding relation to the latter, and circuit means for processing a frequency signal from the oscillation detecting means, and by arithmetic operations derive and display the density of the specimen fluid being measured.
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申请公布号 |
US4429564(A) |
申请公布日期 |
1984.02.07 |
申请号 |
US19810330175 |
申请日期 |
1981.12.14 |
申请人 |
YOKOGAWA HOKUSHIN ELECTRIC CORPORATION |
发明人 |
IKEDA, KYOICHI;ANDO, MOTOYOSHI;HARADA, KINJI |
分类号 |
G01N9/00;(IPC1-7):G01N9/00 |
主分类号 |
G01N9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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