JPS55160812A - Monitoring method for flow rate of gas - Google Patents

Monitoring method for flow rate of gas

Info

Publication number
JPS55160812A
JPS55160812A JP6896179A JP6896179A JPS55160812A JP S55160812 A JPS55160812 A JP S55160812A JP 6896179 A JP6896179 A JP 6896179A JP 6896179 A JP6896179 A JP 6896179A JP S55160812 A JPS55160812 A JP S55160812A
Authority
JP
Japan
Prior art keywords
corrugated pipe
gas
frequency
horn
pressure wave
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
JP6896179A
Other languages
Japanese (ja)
Inventor
Osami Matsushita
Yoichi Yoshinaga
Shigemi Igarashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6896179A priority Critical patent/JPS55160812A/en
Publication of JPS55160812A publication Critical patent/JPS55160812A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To easily measure the flow rate of a gas flowing in a corrugated pipe, by providing the corrugated pipe with an acoustic magnifying and emanating horn, and determining the frequency of sounds occurring in the horn.
CONSTITUTION: An acoustic magnifying and amanating horn 8 is provided on a corrugated pipe 7 in which a gas flows. When a gas flows in the corrugated pipe 7, a fluctuating pressure wave having loops inside ridges of the corrugated pipe is formed. A frequency (f) of this fluctuating pressure wave, a velocity of flow V(m/ sec) of a gas and the number B of ridges per 1m of a corrugated pipe have the relation expressed by a formula V=2f/B. Accordingly, when the frequency (f) of the fluctuating pressure wave is received by microphone 9 so as to be measured through a frequency analyzer 10, the velocity of flow of the gas flowing in the corrugated pipe can be determined.
COPYRIGHT: (C)1980,JPO&Japio
JP6896179A 1979-06-04 1979-06-04 Monitoring method for flow rate of gas Pending JPS55160812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6896179A JPS55160812A (en) 1979-06-04 1979-06-04 Monitoring method for flow rate of gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6896179A JPS55160812A (en) 1979-06-04 1979-06-04 Monitoring method for flow rate of gas

Publications (1)

Publication Number Publication Date
JPS55160812A true JPS55160812A (en) 1980-12-15

Family

ID=13388775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6896179A Pending JPS55160812A (en) 1979-06-04 1979-06-04 Monitoring method for flow rate of gas

Country Status (1)

Country Link
JP (1) JPS55160812A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108712A (en) * 1980-12-26 1982-07-06 Matsushita Electric Ind Co Ltd Flow rate detecting element
JPS611128U (en) * 1984-06-08 1986-01-07 恵良 武晴 flow rate detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108712A (en) * 1980-12-26 1982-07-06 Matsushita Electric Ind Co Ltd Flow rate detecting element
JPS611128U (en) * 1984-06-08 1986-01-07 恵良 武晴 flow rate detection device

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