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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR INSPECTING TEMPERATURE SENSOR
Document Type and Number:
Japanese Patent JP3457175
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To simply inspect whether or not a temperature sensor operates normally by respectively inserting a reference temperature sensor and the temperature sensor to be inspected to two holes formed at a load face of a conical base having a bottom face set at the side of a heater.
SOLUTION: At least two holes are formed at a load face of a conical base 2 having a bottom face set at the side of a heater H. The holes are directed to the center of the bottom face. A temperature sensor 3 as a reference is inserted to one of the holes, and a temperature sensor 4 to be inspected is inserted to the other hole. The temperature sensor 4 is inspected on the basis of measured results of the temperature sensors 3, 4. When a heating temperature of the heater H to the conical base 2 is set from an input device 6, a temperature adjuster 5 takes the measured result of the temperature sensor 3 and turns on a relay contact 7 until a desired temperature is obtained, i.e., controls the temperature. The measured result taken from the temperature sensor 3 is displayed at a display device 8. A temperature relay 9 turns on a relay contact 10 when the set temperature agrees with the measured temperature of the temperature sensor 4, thereby lighting a display lamp.


Inventors:
Sato, Masanobu
Application Number:
JP1998000079175
Publication Date:
August 01, 2003
Filing Date:
March 26, 1998
Export Citation:
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Assignee:
HITACHI TECHNO ENG CO LTD
International Classes:
G01K15/00; (IPC1-7): G01K15/00
Attorney, Agent or Firm:
高田 幸彦 (外1名)