JPS564019A - Acoustic velocity measuring device - Google Patents

Acoustic velocity measuring device

Info

Publication number
JPS564019A
JPS564019A JP7911779A JP7911779A JPS564019A JP S564019 A JPS564019 A JP S564019A JP 7911779 A JP7911779 A JP 7911779A JP 7911779 A JP7911779 A JP 7911779A JP S564019 A JPS564019 A JP S564019A
Authority
JP
Japan
Prior art keywords
frequency
acoustic velocity
oscillator
resonator
intrinsic mode
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
JP7911779A
Other languages
Japanese (ja)
Inventor
Takehiko Suzuki
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 JP7911779A priority Critical patent/JPS564019A/en
Publication of JPS564019A publication Critical patent/JPS564019A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To easily determine the acoustic velocity in a medium by finding the acoustic velocity from the measured values of the resonance frequency and the number of waves of an intrinsic mode by use of a sound source excited by a variable frequency oscillator or a wide band-pass oscillator and a resonator having an intrinsic mode resonated by the sound source.
CONSTITUTION: The output signal of a variable frequency oscillator 5 or a wide band-pass oscillator 5 is applied through an amplification circuit 4 to speakers 2. The output signal of a microphone 2 fitted to the side surface of a resonator 1 is introduced into a frequency analyzer 8 through an amplification circuit 7. By the frequency analyzer 8, the resonance frequency ωn and the frequency Kn of the intrinsic mode determined by the configuration of the resonator are sought. By the ratio of ωn to Kn the acoustic vealocity is determined. These operations can be automatically performed by a data processing device. Accordingly, the acoustic velocity can be easily determined even without knowledge as to the physical prop erty values such as the temperature and the pressure of the medium.
COPYRIGHT: (C)1981,JPO&Japio
JP7911779A 1979-06-25 1979-06-25 Acoustic velocity measuring device Pending JPS564019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7911779A JPS564019A (en) 1979-06-25 1979-06-25 Acoustic velocity measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7911779A JPS564019A (en) 1979-06-25 1979-06-25 Acoustic velocity measuring device

Publications (1)

Publication Number Publication Date
JPS564019A true JPS564019A (en) 1981-01-16

Family

ID=13680965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7911779A Pending JPS564019A (en) 1979-06-25 1979-06-25 Acoustic velocity measuring device

Country Status (1)

Country Link
JP (1) JPS564019A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027149U (en) * 1983-07-26 1985-02-23 渡辺　幹夫 Installation equipment at the assembly gate
CN106643934A (en) * 2016-11-15 2017-05-10 宁波大学 Calculation method for gas sound velocity
CN109990855A (en) * 2019-04-09 2019-07-09 宁波大学 A method for calculating the speed of sound of an ultrasonic gas flow meter under standard conditions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027149U (en) * 1983-07-26 1985-02-23 渡辺　幹夫 Installation equipment at the assembly gate
CN106643934A (en) * 2016-11-15 2017-05-10 宁波大学 Calculation method for gas sound velocity
CN109990855A (en) * 2019-04-09 2019-07-09 宁波大学 A method for calculating the speed of sound of an ultrasonic gas flow meter under standard conditions

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