JPH0420098U - - Google Patents
Info
- Publication number
- JPH0420098U JPH0420098U JP6172790U JP6172790U JPH0420098U JP H0420098 U JPH0420098 U JP H0420098U JP 6172790 U JP6172790 U JP 6172790U JP 6172790 U JP6172790 U JP 6172790U JP H0420098 U JPH0420098 U JP H0420098U
- Authority
- JP
- Japan
- Prior art keywords
- duct
- speaker
- muffle
- notch
- offset
- 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
Links
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000003584 silencer Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は本考案の一実施例の構成系統図（一部
縦断面図）、第２図は従来例の構成系統図である
。
１，１ａ……ダクト、２……低剛性板、３……
吸音材、Ｓ……スピーカ、Ｍ１……センサマイク
ロホン、Ｍ２……モニタマイクロホン、７……デ
イジタルフイルタ、８……制御器。
FIG. 1 is a structural diagram (partially longitudinal sectional view) of an embodiment of the present invention, and FIG. 2 is a structural diagram of a conventional example. 1, 1a...Duct, 2...Low rigidity plate, 3...
Sound absorbing material, S...Speaker, M1 ...Sensor microphone, M2 ...Monitor microphone, 7...Digital filter, 8...Controller.
Claims (1)
ト内へ向けて音波を発し、同ダクト内を伝搬する
騒音を相殺消音するダクトにおいて、上記スピー
カに対向する上記ダクトの側面を所定の範囲に切
り欠き、同切り欠き部を低剛性板でふさいでなる
ことを特徴とする電子消音器ダクト。 In a duct that emits sound waves from a speaker attached to the side of the duct toward the inside of the duct to offset and muffle the noise propagating inside the duct, the side of the duct facing the speaker is cut out in a predetermined range, An electronic silencer duct characterized in that the notch is covered with a low-rigidity plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6172790U JPH0420098U (en) | 1990-06-13 | 1990-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6172790U JPH0420098U (en) | 1990-06-13 | 1990-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420098U true JPH0420098U (en) | 1992-02-19 |
Family
ID=31590231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6172790U Pending JPH0420098U (en) | 1990-06-13 | 1990-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07334170A (en) * | 1994-06-07 | 1995-12-22 | Daidan Kk | Speaker device for active noise control system |
| JPH07334167A (en) * | 1994-06-07 | 1995-12-22 | Daidan Kk | Sensor device for active noise control system |
-
1990
- 1990-06-13 JP JP6172790U patent/JPH0420098U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07334170A (en) * | 1994-06-07 | 1995-12-22 | Daidan Kk | Speaker device for active noise control system |
| JPH07334167A (en) * | 1994-06-07 | 1995-12-22 | Daidan Kk | Sensor device for active noise control system |