JPS5210786A - Airplane-noise measuring method - Google Patents

Airplane-noise measuring method

Info

Publication number
JPS5210786A
JPS5210786A JP8692675A JP8692675A JPS5210786A JP S5210786 A JPS5210786 A JP S5210786A JP 8692675 A JP8692675 A JP 8692675A JP 8692675 A JP8692675 A JP 8692675A JP S5210786 A JPS5210786 A JP S5210786A
Authority
JP
Japan
Prior art keywords
airplane
measuring method
noise measuring
noise
channels
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
JP8692675A
Other languages
Japanese (ja)
Other versions
JPS5630809B2 (en
Inventor
Hiroshige Fukuhara
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.)
Rion Co Ltd
Original Assignee
Rion 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 Rion Co Ltd filed Critical Rion Co Ltd
Priority to JP8692675A priority Critical patent/JPS5210786A/en
Publication of JPS5210786A publication Critical patent/JPS5210786A/en
Publication of JPS5630809B2 publication Critical patent/JPS5630809B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: In order to discriminate whether it is the airplane noise or not through comparing two channels, by means of installing the channels which made only the main components pass, by utilizing the difference between the main component of the wind-noise and that of airplane-noise.
COPYRIGHT: (C)1977,JPO&Japio
JP8692675A 1975-07-15 1975-07-15 Airplane-noise measuring method Granted JPS5210786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8692675A JPS5210786A (en) 1975-07-15 1975-07-15 Airplane-noise measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8692675A JPS5210786A (en) 1975-07-15 1975-07-15 Airplane-noise measuring method

Publications (2)

Publication Number Publication Date
JPS5210786A true JPS5210786A (en) 1977-01-27
JPS5630809B2 JPS5630809B2 (en) 1981-07-17

Family

ID=13900454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8692675A Granted JPS5210786A (en) 1975-07-15 1975-07-15 Airplane-noise measuring method

Country Status (1)

Country Link
JP (1) JPS5210786A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562990A (en) * 1978-11-06 1980-05-12 Hitachi Ltd Fluorescent substance and its preparation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143510U (en) * 1984-03-02 1985-09-24 竹内工業株式会社 Storage container for liquid cosmetics, etc.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562990A (en) * 1978-11-06 1980-05-12 Hitachi Ltd Fluorescent substance and its preparation
JPS5821945B2 (en) * 1978-11-06 1983-05-04 株式会社日立製作所 Fluorescent material and its manufacturing method

Also Published As

Publication number Publication date
JPS5630809B2 (en) 1981-07-17

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