JPS5712333A - Temperature display element - Google Patents

Temperature display element

Info

Publication number
JPS5712333A
JPS5712333A JP8761680A JP8761680A JPS5712333A JP S5712333 A JPS5712333 A JP S5712333A JP 8761680 A JP8761680 A JP 8761680A JP 8761680 A JP8761680 A JP 8761680A JP S5712333 A JPS5712333 A JP S5712333A
Authority
JP
Japan
Prior art keywords
temperature
paraffin
display element
fusing point
layer
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
JP8761680A
Other languages
Japanese (ja)
Inventor
Koji Funakoshi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8761680A priority Critical patent/JPS5712333A/en
Publication of JPS5712333A publication Critical patent/JPS5712333A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To ensure quick and safe detection for the temperature higher or lower than a prescribed level through a simple constitution, by enclosing paraffin having a fusing point of a prescribed temperature into a sealed container having a light transmitting part. CONSTITUTION:For measurement of an abnormal temperature of body or the like, paraffin 3 having a sharp fusing point such as the n-eicosane (C20H42 with melting point 37 deg.C) or the like is coated in a layer form on a colored layer 2 provided on the inner bottom surface of a container 1. Then a gap layer 4 is formed, and a transparent upper cover 5 is attached to seal an opening 1a. Thus a temperature display element A is obtained. A viscous layer 6 is formed on the outer bottom surface of the element A to be attached on the surface of body. Thus paraffin which is white and opaque under the fusing point becomes transparent at a temperature higher than the melting point. As a result, the color of the inner bottom surface becomes visible. A sharp measurement is also possible at another temperature by mixing a proper amount of paraffin of another kind to eicosane. In such way, a temperature display element which can be used in a safe way with high durabililty can be obtained.
JP8761680A 1980-06-26 1980-06-26 Temperature display element Pending JPS5712333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8761680A JPS5712333A (en) 1980-06-26 1980-06-26 Temperature display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8761680A JPS5712333A (en) 1980-06-26 1980-06-26 Temperature display element

Publications (1)

Publication Number Publication Date
JPS5712333A true JPS5712333A (en) 1982-01-22

Family

ID=13919900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8761680A Pending JPS5712333A (en) 1980-06-26 1980-06-26 Temperature display element

Country Status (1)

Country Link
JP (1) JPS5712333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03226115A (en) * 1990-01-31 1991-10-07 Mitsubishi Electric Corp Pulse generating circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262485A (en) * 1975-11-18 1977-05-23 Akira Matsui Temperature warning indicator
JPS52123984A (en) * 1976-04-10 1977-10-18 Morishita Jintan Co Temperature display mixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262485A (en) * 1975-11-18 1977-05-23 Akira Matsui Temperature warning indicator
JPS52123984A (en) * 1976-04-10 1977-10-18 Morishita Jintan Co Temperature display mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03226115A (en) * 1990-01-31 1991-10-07 Mitsubishi Electric Corp Pulse generating circuit

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