Title:
セラミックシース型熱電対
Document Type and Number:
Japanese Patent JP3572312
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a ceramic sheath-type thermocouple whose temperature responsiveness is enhanced. SOLUTION: In the ceramic sheath-type thermocouple, a protective pipe 1 is made of a ceramic which is selected from among silicon nitrode, a sialon and silicon carbide, and W-Re strands 6, 7 which comprise a coupling part to be used as a temperature measuring point 5 are arranged at the inside of the protective pipe 1. Then, a filler 2 which is composed of an Si3 N4 -based reaction-sintered ceramic is arranged at the tip part 4 of the protective pipe 1 so as to surround the W-Re strands 6, 7, and a filler 3 whose thermal conductivity is smaller than that of the filler 2 and which is composed of SiC whiskers is arranged at a rear part 11. In addition, an inert gas is sealed at the inside of the protective pipe 1.
Inventors:
Hideki Kita
Hideo Kawamura
Kazuo Miyajima
Hideo Kawamura
Kazuo Miyajima
Application Number:
JP20101496A
Publication Date:
September 29, 2004
Filing Date:
July 12, 1996
Export Citation:
Assignee:
Isuzu Motors Limited
Japan Science and Technology Agency
Japan Science and Technology Agency
International Classes:
G01K1/08; G01K7/02; H01L35/02; (IPC1-7): G01K7/02; G01K1/08; H01L35/02
Domestic Patent References:
| JP58033135A | ||||
| JP58055727A | ||||
| JP2038391A | ||||
| JP2217361A | ||||
| JP63011574A |
Attorney, Agent or Firm:
Onaka Kazumune