Title:
温度定点セル、温度定点装置および温度計校正方法
Document Type and Number:
Japanese Patent JP4565159
Kind Code:
B2
Abstract:
A fixed-point cell is provided which can provide a fixed-point in a wide temperature range by changing the fixed-point material. During the use of the fixed-point cell, the fixed-point material can be prevented from being contaminated, and the crucible of the cell can be prevented from being cracked. The fixed-point cell includes: the crucible composed of carbon; the fixed-point material enclosed in the crucible and composed of one of a metal, a eutectic of a metal and carbon, and a eutectic of a metal carbide and carbon; and a woven fabric of graphite fibers containing 10 ppm or lower of impurities and interposed between the crucible and the fixed-point material.
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Inventors:
Yamada Yoshiro
Application Number:
JP2005300011A
Publication Date:
October 20, 2010
Filing Date:
October 14, 2005
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
G01K15/00; G01J5/00
Domestic Patent References:
| JP2987459B2 | ||||
| JP3404531B2 | ||||
| JP2005315642A |
Attorney, Agent or Firm:
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto