Title:
TEMPERATURE MEASURING DEVICE AND MAKING METHOD THEREOF
Document Type and Number:
Japanese Patent JPS55101834
Kind Code:
A
Abstract:
The disclosure relates to an apparatus for measuring temperature, comprising a temperature-sensitive sensor, whose electric properties, for example, resistance, vary with the temperature, for example, a thermistor (2, 2 min , 3 or 3 min ) which is connected to two electric lines (5, 6), which, in their turn, may be connected to a read-off unit for reading off values of current, voltage or the like corresponding to the temperature.
The apparatus comprises one or more further sensors (2, 2 min , 3 or 3 min ) which, together with the first-mentioned sensor, are selected and coupled such that they, at least within a determined temperature range, have a value of the above-mentioned electric property accurately corresponding to the temperature. In this instance, the sensors are preferably coupled in series between the above-mentioned electric lines (5,6) and are selected such that their deviations from certain determined values have a predetermined value, for example, zero.
The disclosure also relates to a method of producing the above-defined apparatus, the above-mentioned electric property being measured for a large number of sensors and forming the basis of a sorting within accurately determined intervals, whereafter two or more sensors are selected for each apparatus, the sensors, on desired coupling to the electric lines, giving a desired value of the above-mentioned electric property.
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Inventors:
BO HAAKAN HAAKANSON
JIYOOJI DABURIYU OETORE
JIYOOJI DABURIYU OETORE
Application Number:
JP675180A
Publication Date:
August 04, 1980
Filing Date:
January 23, 1980
Export Citation:
Assignee:
GAMBRO AG
International Classes:
G01K7/22; G01K13/00; (IPC1-7): G01K7/24
Domestic Patent References:
| JPS52153483A | 1977-12-20 | |||
| JP43016593A |