JPH01143591U - - Google Patents

Info

Publication number
JPH01143591U
JPH01143591U JP3844088U JP3844088U JPH01143591U JP H01143591 U JPH01143591 U JP H01143591U JP 3844088 U JP3844088 U JP 3844088U JP 3844088 U JP3844088 U JP 3844088U JP H01143591 U JPH01143591 U JP H01143591U
Authority
JP
Japan
Prior art keywords
acoustic device
helmholtz resonator
resonator
tube port
vibrator
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
JP3844088U
Other languages
English (en)
Japanese (ja)
Other versions
JP2568674Y2 (ja
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 filed Critical
Priority to JP1988038440U priority Critical patent/JP2568674Y2/ja
Priority to DE68919495T priority patent/DE68919495T2/de
Priority to EP89104837A priority patent/EP0334238B1/en
Priority to US07/326,880 priority patent/US5173575A/en
Publication of JPH01143591U publication Critical patent/JPH01143591U/ja
Application granted granted Critical
Publication of JP2568674Y2 publication Critical patent/JP2568674Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
JP1988038440U 1988-03-25 1988-03-25 音響装置 Expired - Lifetime JP2568674Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1988038440U JP2568674Y2 (ja) 1988-03-25 1988-03-25 音響装置
DE68919495T DE68919495T2 (de) 1988-03-25 1989-03-17 Akustischer Apparat.
EP89104837A EP0334238B1 (en) 1988-03-25 1989-03-17 Acoustic Apparatus
US07/326,880 US5173575A (en) 1988-03-25 1989-03-21 Acoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988038440U JP2568674Y2 (ja) 1988-03-25 1988-03-25 音響装置

Publications (2)

Publication Number Publication Date
JPH01143591U true JPH01143591U (zh) 1989-10-02
JP2568674Y2 JP2568674Y2 (ja) 1998-04-15

Family

ID=31264990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988038440U Expired - Lifetime JP2568674Y2 (ja) 1988-03-25 1988-03-25 音響装置

Country Status (1)

Country Link
JP (1) JP2568674Y2 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448796U (zh) * 1990-08-30 1992-04-24
CN109413559A (zh) * 2018-08-30 2019-03-01 南京粒子声学科技有限公司 一种利用赫姆霍兹消声器实现矢量传感器校准的装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57151088U (zh) * 1981-03-17 1982-09-22
JPS58173992U (ja) * 1982-05-18 1983-11-21 パイオニア株式会社 スピ−カシステム
JPS61294992A (ja) * 1985-06-14 1986-12-25 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン 電気信号を音響信号に変換する装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57151088U (zh) * 1981-03-17 1982-09-22
JPS58173992U (ja) * 1982-05-18 1983-11-21 パイオニア株式会社 スピ−カシステム
JPS61294992A (ja) * 1985-06-14 1986-12-25 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン 電気信号を音響信号に変換する装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448796U (zh) * 1990-08-30 1992-04-24
CN109413559A (zh) * 2018-08-30 2019-03-01 南京粒子声学科技有限公司 一种利用赫姆霍兹消声器实现矢量传感器校准的装置

Also Published As

Publication number Publication date
JP2568674Y2 (ja) 1998-04-15

Similar Documents

Publication Publication Date Title
EP1398991A3 (en) Acoustic Noise Reducing
JPS62141293U (zh)
JPH03130700U (zh)
JPH0226890U (zh)
JPH01132194U (zh)
JPH01143591U (zh)
JPH0244495U (zh)
JPH0247892U (zh)
JPH0247894U (zh)
JPH0290592U (zh)
JP2832951B2 (ja) 電子楽器のスピーカシステム
JPH0476795U (zh)
JPH0223192U (zh)
JPH0236288U (zh)
JPH0247893U (zh)
JPS625787U (zh)
JP2525784Y2 (ja) スピーカ装置
JPH0290593U (zh)
JPH04119497U (ja) 防水用圧電ブザー
JPH02101894A (ja) 音響振動装置
JPH01171398A (ja) 音響装置
JPH0253693U (zh)
JPS5991090U (ja) オ−プンエア式ヘツドホ−ン
JPH0229794A (ja) 携帯用楽器
JPH0328895U (zh)