Title:
MANUFACTURE OF ELECTROMAGNETIC FLOWMETER
Document Type and Number:
Japanese Patent JP2601198
Kind Code:
B2
Abstract:
PURPOSE: To improve the sealing performance, abrasion resistance, and heat resistance of an electrode section by assembling an electrode member of an unsintered body made of a material having the sintering temperature near that of the material of a tube into part of an unsintered tube molding made of only an insulating material, and integrally sintering them.
CONSTITUTION: The tube 1 of an electromagnetic flow mater is made of a sintered body, and an electrode 2 made of a conducting sintered body is integrally buried in the tube wall of the tube 1. The inner face of the electrode 2 is arranged in the same cylinder face as the inner face of the tube 1, and the face of the electrode 2 connected to the inner face of the tube 1 is neither protruded nor recessed from the inner face of the tube 1. An electrode extraction section 10 extracting a measured signal from the electrode 2 to an external circuit is formed into a belt shape by metallization on the tube 1 of nonconducting ceramic and an electrode exposure section connected to it. When the sintering temperature of an electrode member is near that of the ceramic of a conducting member, the tube 1 assembled with the unsintered molding section of the electrode section into part of unsintered molding of the tube 1 is put in a sintering furnace, and they are integrally sintered and molded.
Inventors:
Kenichi Kuromori
Application Number:
JP14154294A
Publication Date:
April 16, 1997
Filing Date:
June 23, 1994
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
G01F1/58; (IPC1-7): G01F1/58
Domestic Patent References:
| JP56157812A | ||||
| JP5866817A |
Other References:
【文献】英国特許2068122(GB,A)
Attorney, Agent or Firm:
Masayasu Watanabe