Title:
SENSOR FOR VORTEX FLOWMETER
Document Type and Number:
Japanese Patent JPH05142003
Kind Code:
A
Abstract:
PURPOSE:To prevent exposure of a vibration tube to a high temperature in a manufacturing process, to attain long-time stability, increased reliability and high sensitivity and to improve a high-band characteristic. CONSTITUTION:A vortex sensor 1 comprises a vibration tube 3 which has a flange part 2 in one end and a bottom part 3b and a vibration detecting part 5 which has a vortex detecting element provided in a tube chamber 3a of the vibration tube 3 and made up of a vibration base material 6 and piezoelectric elements 9 fixed on both sides of the vibration base material by a conductive bonding agent, one end of the vibration base material 6 of the vortex detecting element being fixed by a support plate 8 and the other end thereof being fixed in a support hole 2b of the flange part 2 with an insulating terminal block 7 interposed. The vortex sensor 1 is fitted to a vortex generating body put in continuity with a fluid to be measured, in both lateral sides, a recessed part of the sensor formed in the axial direction being used as a pressure chamber.
Inventors:
MISUMI KATSUO
WADA MASUHIRO
WADA MASUHIRO
Application Number:
JP33003091A
Publication Date:
June 08, 1993
Filing Date:
November 19, 1991
Export Citation:
Assignee:
OVAL CORP
International Classes:
G01F1/32; (IPC1-7): G01F1/32
Attorney, Agent or Firm:
Akinori Takano (1 person outside)