JPH0632587Y2 - 遮音性能測定用音源装置 - Google Patents

遮音性能測定用音源装置

Info

Publication number
JPH0632587Y2
JPH0632587Y2 JP8273389U JP8273389U JPH0632587Y2 JP H0632587 Y2 JPH0632587 Y2 JP H0632587Y2 JP 8273389 U JP8273389 U JP 8273389U JP 8273389 U JP8273389 U JP 8273389U JP H0632587 Y2 JPH0632587 Y2 JP H0632587Y2
Authority
JP
Japan
Prior art keywords
sound
source device
sound insulation
insulation performance
sound source
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.)
Expired - Fee Related
Application number
JP8273389U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0323359U (enrdf_load_html_response
Inventor
真次郎 山下
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.)
Yamaha Corp
Original Assignee
Yamaha Corp
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 Yamaha Corp filed Critical Yamaha Corp
Priority to JP8273389U priority Critical patent/JPH0632587Y2/ja
Publication of JPH0323359U publication Critical patent/JPH0323359U/ja
Application granted granted Critical
Publication of JPH0632587Y2 publication Critical patent/JPH0632587Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
JP8273389U 1989-07-14 1989-07-14 遮音性能測定用音源装置 Expired - Fee Related JPH0632587Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8273389U JPH0632587Y2 (ja) 1989-07-14 1989-07-14 遮音性能測定用音源装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8273389U JPH0632587Y2 (ja) 1989-07-14 1989-07-14 遮音性能測定用音源装置

Publications (2)

Publication Number Publication Date
JPH0323359U JPH0323359U (enrdf_load_html_response) 1991-03-11
JPH0632587Y2 true JPH0632587Y2 (ja) 1994-08-24

Family

ID=31629803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8273389U Expired - Fee Related JPH0632587Y2 (ja) 1989-07-14 1989-07-14 遮音性能測定用音源装置

Country Status (1)

Country Link
JP (1) JPH0632587Y2 (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077418U (ja) * 1993-06-30 1995-02-03 株式会社安田 養魚用水槽の循環溢流具
JP2014078147A (ja) * 2012-10-11 2014-05-01 Nohmi Bosai Ltd 放火威嚇装置および放火威嚇方法

Also Published As

Publication number Publication date
JPH0323359U (enrdf_load_html_response) 1991-03-11

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees