JPS56147027A - Temperature detector for high-frequency heater - Google Patents

Temperature detector for high-frequency heater

Info

Publication number
JPS56147027A
JPS56147027A JP5000280A JP5000280A JPS56147027A JP S56147027 A JPS56147027 A JP S56147027A JP 5000280 A JP5000280 A JP 5000280A JP 5000280 A JP5000280 A JP 5000280A JP S56147027 A JPS56147027 A JP S56147027A
Authority
JP
Japan
Prior art keywords
vibrator
temp
frequency heater
receiver
clock
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
JP5000280A
Other languages
Japanese (ja)
Inventor
Takashi Yamamoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5000280A priority Critical patent/JPS56147027A/en
Publication of JPS56147027A publication Critical patent/JPS56147027A/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
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/24—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of the velocity of propagation of sound

Abstract

PURPOSE:To detect the temp. of a high-frequency heater with high response and high accuracy by providing a sound wave generating vibrator to the oven side wall of the high-frequency heater and detecting the sound wave changing of the propagation speeds in accordance with temperatures by means of a receiver opposing thereto. CONSTITUTION:Vibration signals are generated intermittently from an ultrasonic wave generator 8 according to the clock of a clock generator 18, and ultrasonic waves are generated from the vibrator 6 provided to the inside wall of the oven 1 of the high-frequency heater. These are received by the receiver 7 which are provided on the opposing inside wall and opposes to the vibrator 6, thence they are counted by a counter 13 which is controlled by the clock of the generator 18. The temp. by high-frequency heating is measured with fast responsiveness, hence high accuracy, by such constitution of detecting the ultrasonic waves changing of the propagation speeds in accordance with temperatures by means of the opposite vibrator and receiver and making prescribed counting. Hence, if the measured temp. is converted to the control signal temp. controlling is accomplished easily and accurately.
JP5000280A 1980-04-15 1980-04-15 Temperature detector for high-frequency heater Pending JPS56147027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5000280A JPS56147027A (en) 1980-04-15 1980-04-15 Temperature detector for high-frequency heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5000280A JPS56147027A (en) 1980-04-15 1980-04-15 Temperature detector for high-frequency heater

Publications (1)

Publication Number Publication Date
JPS56147027A true JPS56147027A (en) 1981-11-14

Family

ID=12846786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5000280A Pending JPS56147027A (en) 1980-04-15 1980-04-15 Temperature detector for high-frequency heater

Country Status (1)

Country Link
JP (1) JPS56147027A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63217149A (en) * 1987-03-05 1988-09-09 Matsushita Electric Ind Co Ltd Heating device
US5141331A (en) * 1988-02-19 1992-08-25 Oscar Oehler Ultrasonic temperature measurement and uses in optical spectroscopy and calorimetry
US5285677A (en) * 1989-12-08 1994-02-15 Oscar Oehler Selective gas detection by field separation and velocity of sound determination, especially O2 detection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63217149A (en) * 1987-03-05 1988-09-09 Matsushita Electric Ind Co Ltd Heating device
US5141331A (en) * 1988-02-19 1992-08-25 Oscar Oehler Ultrasonic temperature measurement and uses in optical spectroscopy and calorimetry
US5285677A (en) * 1989-12-08 1994-02-15 Oscar Oehler Selective gas detection by field separation and velocity of sound determination, especially O2 detection

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