Title:
COOLING UNIT FOR TEMPERATURE MEASUREMENT
Document Type and Number:
Japanese Patent JP3199333
Kind Code:
B2
Abstract:
PURPOSE: To measure temperature stably even in high temperature atmosphere by providing a concentric cooling pipe, to be inserted with a thermometer, with cooling means for feeding cooling medium.
CONSTITUTION: A cooling pipe 1 has a base part coupled with a base body 3 having a flange part 3a. Cooling medium, e.g. water or gas, is introduced through an introduction port 31 of the base body 3 into a third pipe 13 thence returned through a communicating part 14 and a second pipe 12 to the base body 3 side where it is discharged through a discharge port 32 thus cooling a thermometer 4 inserted into a first pipe 11. An optical or electrical signal is delivered from the base part 40 of the thermometer 4. Since the thermometer 4 is cooled through a cooling unit including the cooling pipe 1 and further cooled through a heat transmission pipe 2 having high thermal conductivity being provided as required, the thermometer 4 comprising an optical fiber or the like is not heated but cooled sufficiently. This constitution protects the coating of optical fiber against evaporation or damage while removing stray light from the intermediate part thus allowing stabilized temperature measurement with reduced error.
Inventors:
Takeo Yamada
Isao Hishikari
Isao Hishikari
Application Number:
JP28386092A
Publication Date:
August 20, 2001
Filing Date:
September 29, 1992
Export Citation:
Assignee:
Chino Co., Ltd.
Nippon Steel Tube Co., Ltd.
Nippon Steel Tube Co., Ltd.
International Classes:
G01J5/06; G01K1/08; (IPC1-7): G01K1/08
Domestic Patent References:
| JP5276082A |
Previous Patent: 表皮材固定構造及び表皮材剥がし治具
Next Patent: TITANIUM MATERIAL HAVING GOOD CHASING PROPERTY AND APPLICATION GOODS THEREOF
Next Patent: TITANIUM MATERIAL HAVING GOOD CHASING PROPERTY AND APPLICATION GOODS THEREOF