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Patent Searching and Data


Title:
TEMPERATURE SENSOR
Document Type and Number:
Japanese Patent JPH0545234
Kind Code:
A
Abstract:
PURPOSE:To construct a temp. sensor excellent in thermal shock property and thermal responsiveness, which is applied to a burning apparatus such as gas table using a gaseous or liquid fuel. CONSTITUTION:A pair of electrodes 5 are furnished on at least one of the surfaces of a metal base 1 through an electric insulative layer or layers 3, and a thermo-sensitive resistor 4 is provided on the surface of the electric insulative layer 3 in such a way as straddling the two electrodes 5. A temp. sensor according to the invention is embodied in such a constitution that an overcoat layer 7 is provided over the surface of this thermo-sensitive resistor 4, that at least one of the electric insulative layers 3 is made of crystallized glass containing MgO type crystal phase, and that the composition is, by wt, 16-50% MgO, 0-50% Bad, 0-20% CaO, 0-40% La2O3, 5-34% B2O3, 7-30% SiO2, 0-5% MO2 (M is at least one of Zr, Ti, Sn, Zn), and 0-5% P2O5. This constitution can yield a temp. sensor excellent in the thermal shock property and thermal resposniveness.

Inventors:
IKEDA MASAKI
HIRAGA MASAHIRO
HANDA HARUHIKO
YOSHIDA AKIHIKO
Application Number:
JP20784991A
Publication Date:
February 23, 1993
Filing Date:
August 20, 1991
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G01K1/14; G01K7/18; G01K7/22; H01B3/08; (IPC1-7): G01K1/14; G01K7/18; G01K7/22; H01B3/08
Attorney, Agent or Firm:
小鍜治 明 (外2名)