The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Oct. 04, 1994
Mitsuo Yamasaki, Kawasaki, JP;
Shigeru Inoue, Kawasaki, JP;
Ichiro Kikuchi, Kawasaki, JP;
Masaki Komatani, Kawasaki, JP;
Genji Kanatani, Kawasaki, JP;
Masao Hiroko, Kawasaki, JP;
Takafumi Yoshikawa, Kawasaki, JP;
Masashi Edahiro, Kawasaki, JP;
Yoshimi Komatsu, Kawasaki, JP;
Akihiko Inoue, Kawasaki, JP;
Hideaki Mizukami, Kawasaki, JP;
Takeshi Murai, Kawasaki, JP;
Hideo Nakamura, Kawasaki, JP;
Yoshiro Yamada, Kawasaki, JP;
Yuji Adachi, Kawasaki, JP;
Hirofumi Nakamura, Kawasaki, JP;
Keiichi Miyoshi, Kawasaki, JP;
Kazusi Miyamoto, Kawasaki, JP;
Masao Doi, Kawasaki, JP;
Shirou Takene, Kawasaki, JP;
NKK Corporation, Tokyo, JP;
Abstract
An apparatus and method for measuring a temperature of a high temperature liquid contained in a furnace. An optical fiber covered with a metallic tube is inserted through a passageway inside a nozzle arranged on a furnace wall of the furnace. The nozzle communicates with an interior of the furnace containing the liquid, and gas is supplied into the passageway inside the nozzle to prevent the nozzle from clogging. The metal-covered optical fiber is fed through the passageway inside the nozzle into the liquid such that spectral light radiated from the liquid enters a tip of the metal-covered optical fiber and is propagated therealong. The temperature of the liquid is determined by a radiation thermometer, coupled to the metal-covered optical fiber, based on the spectral light propagated along the metal-covered optical fiber.