JPS5487583A - Measuring method of high temperature to melt down thermocouple - Google Patents

Measuring method of high temperature to melt down thermocouple

Info

Publication number
JPS5487583A
JPS5487583A JP15535677A JP15535677A JPS5487583A JP S5487583 A JPS5487583 A JP S5487583A JP 15535677 A JP15535677 A JP 15535677A JP 15535677 A JP15535677 A JP 15535677A JP S5487583 A JPS5487583 A JP S5487583A
Authority
JP
Japan
Prior art keywords
temperature
thermocouple
formula
coefficient
ambient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15535677A
Other languages
Japanese (ja)
Inventor
Jiro Ono
Masakazu Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP15535677A priority Critical patent/JPS5487583A/en
Publication of JPS5487583A publication Critical patent/JPS5487583A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

PURPOSE: To measure accurately the high temperature to naturally cause a thermocouple to melt down, without disturbing the ambient temperature, by estimating the final reaching temperature or the ambient or environmental temperature, when a thermocouple is burned out, from the temperature elevating status until the burnout.
CONSTITUTION: When a consumable probe holding a thermocouple is placed in the atmosphere at temperature θ0, the output of the thermocouple elevates while showing a capacitive delay, and the temperature of the thermocouple placed in the probe central axis conforms to formula I. Te ith-order (i=1, 2, 3...) differential coefficients of formula I are obtained successively, and the relation between the sum obtained by multiplying a proper coefficient Ti to each differential coefficient and θ* obtained by adding θ(τ,0) thereto conforms to formula II. By selecting the coefficient Ti properly, θ(τ,0) becomes constant in a short time, and this constant value gives temperature θ0. Namely, when Ti is properly selected, a correct ambient temperature θ0 may be obtained even if the output of the thermocouple θ(τ,0) is in the low temperature range.
COPYRIGHT: (C)1979,JPO&Japio
JP15535677A 1977-12-23 1977-12-23 Measuring method of high temperature to melt down thermocouple Pending JPS5487583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15535677A JPS5487583A (en) 1977-12-23 1977-12-23 Measuring method of high temperature to melt down thermocouple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15535677A JPS5487583A (en) 1977-12-23 1977-12-23 Measuring method of high temperature to melt down thermocouple

Publications (1)

Publication Number Publication Date
JPS5487583A true JPS5487583A (en) 1979-07-12

Family

ID=15604105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15535677A Pending JPS5487583A (en) 1977-12-23 1977-12-23 Measuring method of high temperature to melt down thermocouple

Country Status (1)

Country Link
JP (1) JPS5487583A (en)

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