Title:
DIFFERENTIAL HEAT SENSOR
Document Type and Number:
Japanese Patent JPH0684075
Kind Code:
A
Abstract:
PURPOSE: To provide a differential heat sensor capable of forming a processing circuit as an IC and attaining high reliability.
CONSTITUTION: The sensor is provided with a temperature measuring means 2 for measuring temperature in each prescribed time interval, a storage means 3 for storing temperature-measured data obtained by the means 2 and a comparing means 4 for reading out past temperature-measured data Vp obtained before prescribed time T and outputting a fire signal based upon a difference between the data Vp and current temperature-measured data Vn.
Inventors:
SHIMOMURA SHIGEKI
Application Number:
JP23050792A
Publication Date:
March 25, 1994
Filing Date:
August 28, 1992
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
G08B17/00; G08B17/06; (IPC1-7): G08B17/06; G08B17/00
Attorney, Agent or Firm:
Mikio Kawase (1 person outside)
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