JPS56625A - Infrared-ray temperature detector - Google Patents

Infrared-ray temperature detector

Info

Publication number
JPS56625A
JPS56625A JP7523479A JP7523479A JPS56625A JP S56625 A JPS56625 A JP S56625A JP 7523479 A JP7523479 A JP 7523479A JP 7523479 A JP7523479 A JP 7523479A JP S56625 A JPS56625 A JP S56625A
Authority
JP
Japan
Prior art keywords
temperature
infrared
output
pass filter
noise
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.)
Granted
Application number
JP7523479A
Other languages
Japanese (ja)
Other versions
JPS6041291B2 (en
Inventor
Kazunari Nishii
Shigeru Kusuki
Tomotaka Nobue
Keijiro Mori
Takahito Kanazawa
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 JP54075234A priority Critical patent/JPS6041291B2/en
Publication of JPS56625A publication Critical patent/JPS56625A/en
Publication of JPS6041291B2 publication Critical patent/JPS6041291B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
    • G01J5/0805—Means for chopping radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Radiation Pyrometers (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Electric Ovens (AREA)

Abstract

PURPOSE:To improve S/N by inserting a high-pass filter, which reduces noise, between a lock-in amplifier and an infrared-ray temperature sensor which detects the difference between the temperature of an object and the temperature of atmosphere. CONSTITUTION:For example, in an electronic range, infrared rays emitted from the cooking material in oven 1 pass through hole 100 and chopper 2 and are reflected by mirror 3 and are condensed onto infrared-ray sensor 5 by concave mirror 4. The output of the infrared-ray sensor passes through high-pass filter 6 which reduces a low-frequency noise to a degree where this noise can be ignored for the temperature signal, and this output is amplified by the lock-in amplifier consisting of high- gain amplifier 7, impedance converter 8, synchronous rectifying circuit 9, and low- pass filter 10, and the atmosphere temperature is corrected in temperature correcting circuit 11 to output an actual temperature to output terminal 12. Consequently, S/N can be improved considerably.
JP54075234A 1979-06-14 1979-06-14 infrared temperature detector Expired JPS6041291B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54075234A JPS6041291B2 (en) 1979-06-14 1979-06-14 infrared temperature detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54075234A JPS6041291B2 (en) 1979-06-14 1979-06-14 infrared temperature detector

Publications (2)

Publication Number Publication Date
JPS56625A true JPS56625A (en) 1981-01-07
JPS6041291B2 JPS6041291B2 (en) 1985-09-14

Family

ID=13570316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54075234A Expired JPS6041291B2 (en) 1979-06-14 1979-06-14 infrared temperature detector

Country Status (1)

Country Link
JP (1) JPS6041291B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143072A (en) * 1981-02-28 1982-09-04 Shinnitsukei Jiyuutaku Kenzai Apparatus for preventing opening-out of double gate door
JPS59139559U (en) * 1983-03-07 1984-09-18 愛三工業株式会社 vaporizer
WO1995018359A1 (en) * 1993-12-30 1995-07-06 Diasense, Inc. Method and apparatus for converting a modulated optical signal to an electrical signal with correction for modulation jitter
ES2535903A1 (en) * 2013-11-15 2015-05-18 Bsh Electrodomésticos España, S.A. Cooking range with temperature sensor (Machine-translation by Google Translate, not legally binding)
ES2535878A1 (en) * 2013-11-15 2015-05-18 Bsh Electrodomésticos España, S.A. Cooking field with temperature sensor (Machine-translation by Google Translate, not legally binding)
WO2022233661A1 (en) * 2021-05-03 2022-11-10 BSH Hausgeräte GmbH Induction hob device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143072A (en) * 1981-02-28 1982-09-04 Shinnitsukei Jiyuutaku Kenzai Apparatus for preventing opening-out of double gate door
JPH033036B2 (en) * 1981-02-28 1991-01-17 Shin Nikkei Co Ltd
JPS59139559U (en) * 1983-03-07 1984-09-18 愛三工業株式会社 vaporizer
WO1995018359A1 (en) * 1993-12-30 1995-07-06 Diasense, Inc. Method and apparatus for converting a modulated optical signal to an electrical signal with correction for modulation jitter
US5471981A (en) * 1993-12-30 1995-12-05 Diasense, Inc. Method and apparatus for converting a modulated optical signal to an electrical signal with correction for modulation jitter
ES2535903A1 (en) * 2013-11-15 2015-05-18 Bsh Electrodomésticos España, S.A. Cooking range with temperature sensor (Machine-translation by Google Translate, not legally binding)
ES2535878A1 (en) * 2013-11-15 2015-05-18 Bsh Electrodomésticos España, S.A. Cooking field with temperature sensor (Machine-translation by Google Translate, not legally binding)
WO2022233661A1 (en) * 2021-05-03 2022-11-10 BSH Hausgeräte GmbH Induction hob device

Also Published As

Publication number Publication date
JPS6041291B2 (en) 1985-09-14

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