THERMOCOUPLE AND MANUFACTURING METHOD THEREOF - NAT INST FOR MATERIALS SCIENCE

Title:

THERMOCOUPLE AND MANUFACTURING METHOD THEREOF

Document Type and Number:

Japanese Patent JP2013234950

Kind Code:

A

Abstract:

To provide a thermocouple having a fast response speed (a short response time) and capable of enabling application as a highly reliable temperature sensor easily arranged to a narrow place or space by improving handleability, durability and environmental resistance in an extra fine wire thermocouple having an outer diameter of 100 μm or less, and a manufacturing method thereof.

A thermocouple includes a thermocouple element wire having an outer diameter of 100 μm or less, and an inorganic insulator coating layer whose thickness is 0.1-3 μm on the surface of the thermocouple element wire. In a salt water spray test that is performed in conformity to JIS H2371 and after the thermocouple is left for 24 h, the inorganic insulator coating layer is a dense coating layer such that salt water corrosion or separation from the thermocouple element wire is not observed.

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Inventors:

KONNO TAKESHI
EGASHIRA MITSURU
KOBAYASHI MIKIHIKO
HASEGAWA YOSHIO
SUZUKI SUSUMU
NEMOTO SHINOBU
SUGIYAMA TOMOHARU
WADA YASUAKI

Application Number:

JP2012108567A

Publication Date:

November 21, 2013

Filing Date:

May 10, 2012

Export Citation:

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Assignee:

NAT INST FOR MATERIALS SCIENCE
ART KAGAKU KK
SAWAHEI CO LTD

International Classes:

G01K7/02; H01L35/32; H01L35/34

Domestic Patent References:

JP2010090492A	2010-04-22
JP2006347827A	2006-12-28
JPH06104493A	1994-04-15

Attorney, Agent or Firm:

Eguchi State

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