JPS554564A - Temperature display device - Google Patents

Temperature display device

Info

Publication number
JPS554564A
JPS554564A JP7781778A JP7781778A JPS554564A JP S554564 A JPS554564 A JP S554564A JP 7781778 A JP7781778 A JP 7781778A JP 7781778 A JP7781778 A JP 7781778A JP S554564 A JPS554564 A JP S554564A
Authority
JP
Japan
Prior art keywords
temperature
ceramics
sheathed heater
colored plate
light
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
JP7781778A
Other languages
Japanese (ja)
Inventor
Toshiichi Tomioka
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 JP7781778A priority Critical patent/JPS554564A/en
Publication of JPS554564A publication Critical patent/JPS554564A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE: To display the surface temperature of a sheathed heater or the like from discoloration owing to temperature by using a temperature sensitive light transmittable ceramics whose light transmittance changes with a change in temperature and whose one surface is laminated with a colored plate.
CONSTITUTION: A red or other colored plate 2 is laminated on one surface of a transparent ceramics 1 of ferrodielectric substance having temperature sensitivity and the ceramics is so affixed or installed to or near the surface of a sheathed heater that the colored plate 2 comes on the sheathed heater side. The transparent ceramics 1 having the characteristics that the transmittance of light is low at room temperature and becomes high above curie temperature is heated as the sheathed heater is energized. When its temperature rises above curie temperature, its transmittance of light rises and therefore it becomes that the colored plate 2 or pattern at the bottom face of the ceramics is visible, from which the temperature rise may be visually checked.
COPYRIGHT: (C)1980,JPO&Japio
JP7781778A 1978-06-26 1978-06-26 Temperature display device Pending JPS554564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7781778A JPS554564A (en) 1978-06-26 1978-06-26 Temperature display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7781778A JPS554564A (en) 1978-06-26 1978-06-26 Temperature display device

Publications (1)

Publication Number Publication Date
JPS554564A true JPS554564A (en) 1980-01-14

Family

ID=13644571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7781778A Pending JPS554564A (en) 1978-06-26 1978-06-26 Temperature display device

Country Status (1)

Country Link
JP (1) JPS554564A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6395331A (en) * 1986-10-09 1988-04-26 Nok Corp Heat label
CN108107023A (en) * 2017-12-20 2018-06-01 哈尔滨工业大学 A kind of low consumption thermal histories display and its preparation and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6395331A (en) * 1986-10-09 1988-04-26 Nok Corp Heat label
CN108107023A (en) * 2017-12-20 2018-06-01 哈尔滨工业大学 A kind of low consumption thermal histories display and its preparation and application

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