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JPS57157127A - Thermometer for gaseous body - Google Patents

Thermometer for gaseous body

Info

Publication number
JPS57157127A
JPS57157127A JP4248581A JP4248581A JPS57157127A JP S57157127 A JPS57157127 A JP S57157127A JP 4248581 A JP4248581 A JP 4248581A JP 4248581 A JP4248581 A JP 4248581A JP S57157127 A JPS57157127 A JP S57157127A
Authority
JP
Japan
Prior art keywords
gas
ultrasonic wave
vibrators
temperature
sound speed
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
JP4248581A
Other languages
Japanese (ja)
Inventor
Ayao Ito
Ichiro Ogura
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 JP4248581A priority Critical patent/JPS57157127A/en
Publication of JPS57157127A publication Critical patent/JPS57157127A/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

Landscapes

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

Abstract

PURPOSE:To measure the temperature of gas simply and at a high speed by obtaining the sound speed of an ultrasonic wave in the gas by a breathing flow meter using ultrasonic waves, then obtaining a gas composition by a gas concentration meter, and computing the temperature of the gas from said values. CONSTITUTION:When ultrasonic wave vibrators 4 and 5 are driven by the outputs of drivers 6 and 7, the ultrasonic waves are propagated from the ultrasonic wave vibrators 4 and 5 to the opposing ultrasonic wave vibrators 5 and 4. The ultrasonic wave signals received by the vibrators 5 and 4 are converted into pulses at received waveform shaping circuits 8 and 9, and the propagating times are counted by propagating time counters 2 and 3. The analyzed value of the gas from a gas analyzer 50, which is connected to a probe 30 through a tube 31 wherein the gas is introduced, is read through an AD converter 44. The sound speed C of the ultrasonic wave is obtained by a microcomputer 42. The temperature coefficient K of the sound speed of the ultrasonic wave is obtained together with the output of the gas analyzer 50, and the temperature T of the gas is obtained.
JP4248581A 1981-03-25 1981-03-25 Thermometer for gaseous body Pending JPS57157127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4248581A JPS57157127A (en) 1981-03-25 1981-03-25 Thermometer for gaseous body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4248581A JPS57157127A (en) 1981-03-25 1981-03-25 Thermometer for gaseous body

Publications (1)

Publication Number Publication Date
JPS57157127A true JPS57157127A (en) 1982-09-28

Family

ID=12637360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4248581A Pending JPS57157127A (en) 1981-03-25 1981-03-25 Thermometer for gaseous body

Country Status (1)

Country Link
JP (1) JPS57157127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112740A (en) * 1988-10-21 1990-04-25 Babcock Hitachi Kk Acoustic type combustion gas temperature measuring instrument
EP1231456A1 (en) * 2001-02-07 2002-08-14 Siemens-Elema AB Arrangement for and method of acoustic determination of fluid temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112740A (en) * 1988-10-21 1990-04-25 Babcock Hitachi Kk Acoustic type combustion gas temperature measuring instrument
EP1231456A1 (en) * 2001-02-07 2002-08-14 Siemens-Elema AB Arrangement for and method of acoustic determination of fluid temperature

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