Title:
【発明の名称】同心ロータを用いるコリオリ効果質量流量計
Document Type and Number:
Japanese Patent JP2989896
Kind Code:
B2
Abstract:
A Coriolis flowmeter having an outer rotor positioned within a housing and having a recess coaxial with a center axis of rotation. A Coriolis rotor is positioned in the recess of the outer rotor and has a center of rotation coaxial with the center axis of rotation. The Coriolis rotor has a plurality of holes, each of which extends from the outer periphery of said Coriolis rotor to a center recess of said Coriolis rotor. The outer rotor has a plurality of holes, each of which extends from the outer periphery of the outer rotor to the recess of said outer rotor with at least some of said holes in said outer rotor being aligned with a corresponding one of said plurality of said holes in said Coriolis rotor. A fluid inlet extends fluid through holes of both the outer rotor and the Coriolis rotor to a fluid outlet of the flowmeter. Both rotors rotate about the center axis of rotation when fluid is received and passes through the holes of the rotors. Coriolis forces generated by the fluid flowing through the rotor holes and the concurrent rotation of both rotors cause the Coriolis rotor to assume an angular offset from the outer rotor about the center axis of rotation. Sensing coils and magnets generate output signals indicative of the magnitude of the angular offset of the Coriolis rotor and the mass flow rate of the flowing fluid.
Inventors:
BAN KURIIU KUREIGU PUREINAADO
RAUINGU ROJAA SUKOTSUTO
RAUINGU ROJAA SUKOTSUTO
Application Number:
JP52845696A
Publication Date:
December 13, 1999
Filing Date:
March 12, 1996
Export Citation:
Assignee:
MAIKURO MOOSHON INC
International Classes:
G01F1/80; G01F1/82; G01F1/84; (IPC1-7): G01F1/84
Other References:
【文献】米国特許2832218(US,A)
【文献】米国特許2877649(US,A)
【文献】米国特許2877649(US,A)
Attorney, Agent or Firm:
Kazuo Shamoto (4 outside)