JPH0424896U - - Google Patents
Info
- Publication number
- JPH0424896U JPH0424896U JP6675490U JP6675490U JPH0424896U JP H0424896 U JPH0424896 U JP H0424896U JP 6675490 U JP6675490 U JP 6675490U JP 6675490 U JP6675490 U JP 6675490U JP H0424896 U JPH0424896 U JP H0424896U
- Authority
- JP
- Japan
- Prior art keywords
- aircraft
- signal
- amplifier
- sound waves
- setting circuit
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図ａ、第１図ｂは本考案に係る航空機離着
陸時の騒音消去装置の一実施例の構成図、第２図
は他の実施例を示す構成図である。
１１，１２〜１ｎ……センサーマイクロフオン
、２１，２２〜２ｎ……移相器、３……音響分析
器、４……シンセサイザ、５……パターンコント
ローラ、６……電力増幅器、７１〜７ｍ……スピ
ーカ。
FIGS. 1a and 1b are block diagrams of one embodiment of a noise canceling device for aircraft takeoff and landing according to the present invention, and FIG. 2 is a block diagram showing another embodiment. 11, 12-1n...sensor microphone, 21, 22-2n...phase shifter, 3...acoustic analyzer, 4...synthesizer, 5...pattern controller, 6...power amplifier, 71-7m... ...Speaker.
Claims (1)
すとともに、マイクロフオンの配置によつて決ま
る遅延を与える移相器と、 マイクロフオンからの信号を分析し、航空機か
らの音波と干渉して打ち消す信号を前記移相器と
ともに生成する音響設定回路と、 音響設定回路からの信号を増幅する増幅器と、 増幅器に接続するスピーカとからなることを特
徴とする航空機離着陸時の騒音消去装置。[Claims for Utility Model Registration] A microphone installed at the airfield of an aircraft, a phase shifter that shifts the phase of sound waves from the aircraft by 180 degrees and provides a delay determined by the arrangement of the microphone, an acoustic setting circuit that analyzes the signal from the phono and generates a signal together with the phase shifter that interferes with and cancels out the sound waves from the aircraft; an amplifier that amplifies the signal from the acoustic setting circuit; and a speaker that is connected to the amplifier. A noise canceling device during aircraft takeoff and landing, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6675490U JPH0424896U (en) | 1990-06-26 | 1990-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6675490U JPH0424896U (en) | 1990-06-26 | 1990-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0424896U true JPH0424896U (en) | 1992-02-27 |
Family
ID=31599732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6675490U Pending JPH0424896U (en) | 1990-06-26 | 1990-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424896U (en) |
-
1990
- 1990-06-26 JP JP6675490U patent/JPH0424896U/ja active Pending
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