JPH0836392A - Device and method for sound insulation of wall body - Google Patents

Device and method for sound insulation of wall body

Info

Publication number
JPH0836392A
JPH0836392A JP6191356A JP19135694A JPH0836392A JP H0836392 A JPH0836392 A JP H0836392A JP 6191356 A JP6191356 A JP 6191356A JP 19135694 A JP19135694 A JP 19135694A JP H0836392 A JPH0836392 A JP H0836392A
Authority
JP
Japan
Prior art keywords
vibration
sound
wall body
wall
sound insulation
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
Application number
JP6191356A
Other languages
Japanese (ja)
Inventor
Harunobu Yoshida
治信 吉田
Kenichi Asada
憲一 浅田
Hiroshi Tanaka
洪 田中
Takashi Yokota
高志 横田
Naoki Morimoto
森本  直樹
Kozo Mizoguchi
耕三 溝口
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP6191356A priority Critical patent/JPH0836392A/en
Publication of JPH0836392A publication Critical patent/JPH0836392A/en
Pending legal-status Critical Current

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  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Vibration Prevention Devices (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

PURPOSE:To provide a sound insulation device of a wall body having a good sound insulation performance and a sound insulation method. CONSTITUTION:The device consists of a microphone 5 which detects sound pressure from a sound generating source 4, vibration sensors 3 (3a to 3c) which receive the signals from the microphone 5, detect the vibration of a wall body 1 caused by the sound waves of the source 4 and installed on the body 1 and a control computing device 6 which outputs computed signals so as to cancel the vibration of the detection position on vibration adding elements 2 (2a to 2c) installed on the body 1. The elements 2 and the sensors 3 are placed on a same position.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、ビルや工場の窓ある
いは壁などの遮音装置及び遮音方法に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation device and a sound insulation method for windows or walls of buildings and factories.

【0002】[0002]

【従来の技術】窓ガラスなどの壁体を介した音の伝搬
は、音発生源からの音波が壁体を振動させる。この壁体
の振動が再び音波を発生させて伝搬が行われる。この伝
搬を抑制する一般的な手段としては、壁体の中間に空気
層を存在させる二重構造のものが多い。しかしながら、
二重構造にした場合には、騒音のうち高周波成分につい
ては壁体に吸収されやすいが、低周波成分については吸
収されにくく遮音効果が十分に発揮できない場合が多
い。
2. Description of the Related Art In the propagation of sound through a wall such as a window glass, a sound wave from a sound source vibrates the wall. The vibration of the wall body again generates a sound wave, and the sound wave is propagated. As a general means for suppressing this propagation, there is a double structure having an air layer in the middle of the wall. However,
In the case of the double structure, the high frequency component of the noise is easily absorbed by the wall body, but the low frequency component is hardly absorbed and the sound insulation effect is not sufficiently exerted in many cases.

【0003】そこで、遮音効果を高める手段として壁体
に強制的に振動を加える遮音装置が提案されている。こ
れは、窓に振動センサを取り付け、音発生源からの音
(一次音)による窓の振動を検出し、この振動を打ち消
すような二次音をスピーカから一次音発生源に向かって
送出するようにしたものや、同じく窓(パネル)に振動
センサを取り付け、外部騒音による窓の振動を検出し、
この振動を打ち消すような曲げモーメントを窓に取り付
けた加振素子によって与えるようにしたものである。
Therefore, a sound insulation device for forcibly vibrating the wall has been proposed as a means for enhancing the sound insulation effect. This is to attach a vibration sensor to the window, detect the vibration of the window due to the sound (primary sound) from the sound source, and send a secondary sound that cancels this vibration toward the primary sound source from the speaker. The same as above, or a vibration sensor is attached to the window (panel) to detect the vibration of the window due to external noise,
A bending moment that cancels this vibration is applied by a vibrating element attached to the window.

【0004】[0004]

【発明が解決しようとする課題】図2に示すような従来
の遮音パネルは、制御された加振素子2により壁体1を
振動させ、振動センサ3が設置されている点の振動レベ
ルを低減するように働くものである。しかし、加振素子
2の配置が振動センサ3の位置と一致しないため、図3
に示すように振動センサ1の振動は低減されるが加振素
子2が配置された点は実際に壁1を振動させており、加
振素子2の配置位置では壁体1そのものが新たな振動源
となって音を発生させ、遮音壁の目的を満足させること
ができない。
In a conventional sound insulation panel as shown in FIG. 2, the controlled vibration element 2 vibrates the wall 1 to reduce the vibration level at the point where the vibration sensor 3 is installed. It works as if to do. However, since the arrangement of the vibration element 2 does not match the position of the vibration sensor 3,
As shown in, the vibration of the vibration sensor 1 is reduced, but the point at which the vibration element 2 is arranged actually vibrates the wall 1. At the position where the vibration element 2 is arranged, the wall body 1 itself newly vibrates. It cannot generate the sound as a source and satisfy the purpose of the sound insulation wall.

【0005】[0005]

【課題を解決するための手段】本発明の壁体の遮音装置
は、壁体に取り付けられた加振素子と振動センサを同一
位置に設置し、マイクロホンから得られた信号を制御演
算装置で前記設置位置の振動を抑制するように演算し、
この演算により得られた信号を加振素子に与えることを
特徴とする。
According to the sound insulation device for a wall of the present invention, a vibrating element mounted on the wall and a vibration sensor are installed at the same position, and a signal obtained from a microphone is transmitted to a control arithmetic unit by the control arithmetic unit. Calculate to suppress the vibration of the installation position,
It is characterized in that the signal obtained by this calculation is given to the vibrating element.

【0006】また、本発明の壁体の遮音方法は、音発生
源からの音の音圧をマイクロホンで検出するとともに、
前記音発生源からの音波によって発生する壁体の振動を
壁体に取り付けられた振動センサで検出し、前記マイク
ロホンからの信号に基づき前記壁体の振動を相殺するよ
うに制御演算装置で演算し、そしてこの演算された信号
を前記振動センサと同一位置に設置されている加振素子
に出力することを特徴とする。
Further, the sound insulation method for the wall of the present invention detects the sound pressure of the sound from the sound source with the microphone, and
Vibration of the wall body generated by the sound wave from the sound source is detected by a vibration sensor attached to the wall body, and is calculated by a control arithmetic unit so as to cancel the vibration of the wall body based on a signal from the microphone. The calculated signal is output to a vibration element installed at the same position as the vibration sensor.

【0007】[0007]

【作用】同一位置に配置された加振素子と振動センサに
おいて、この位置の振動を抑制するようにマイクロホン
から得られた信号を演算し、この演算から得られた壁体
の振動が相殺されるような信号を加振素子に与える。こ
れにより、制御しようとする位置の振動を抑え、制御さ
れた加振素子は配置された自らの位置の振動を抑えるよ
うに働き、加振素子による新たな振動一次音源は発生せ
ず、壁体の振動を抑え、高性能な遮音壁となる。
In the vibration element and the vibration sensor arranged at the same position, the signal obtained from the microphone is calculated so as to suppress the vibration at this position, and the vibration of the wall body obtained by this calculation is canceled. Such a signal is applied to the vibrating element. As a result, the vibration of the position to be controlled is suppressed, the controlled vibration element works to suppress the vibration of its own position where it is arranged, and a new vibration primary sound source is not generated by the vibration element, and the wall body It suppresses the vibration of the and becomes a high performance sound insulation wall.

【0008】[0008]

【実施例】本発明の実施例を図1に基づいて説明する。
同図において、1はガラス窓、床材、天井板あるいは間
仕切りボードなどの壁体であり、この壁体1の表面に加
振素子2と振動センサ3が取り付けられている。取り付
けられている加振素子2と振動センサ3の中心位置は一
致して配置されている。
EXAMPLE An example of the present invention will be described with reference to FIG.
In FIG. 1, reference numeral 1 denotes a wall body such as a glass window, a floor material, a ceiling plate or a partition board, and a vibrating element 2 and a vibration sensor 3 are attached to the surface of the wall body 1. The center positions of the attached vibration element 2 and vibration sensor 3 are arranged so as to coincide with each other.

【0009】壁体1から離れた前方、すなわち音発生源
4に対向する側の前方にはマイクロホン5が配置されて
いる。このマイクロホン5で検出された音圧は、電気信
号に変換されて制御演算装置6に入力される。
A microphone 5 is arranged in front of the wall 1, that is, in front of the side facing the sound source 4. The sound pressure detected by the microphone 5 is converted into an electric signal and input to the control arithmetic unit 6.

【0010】この制御演算装置6では、マイクロホン5
からの信号に基づいて音発生源4からの音圧が壁体1に
到達したときに発生する壁体1の振動値を演算し、この
演算結果から前記加振素子2に壁体1の振動が相殺され
るように、振動を壁体1に与えるように信号を出力す
る。振動の大きさは振動センサ3により検出し、この検
出した信号を前記制御演算装置6に入力する。そして、
この振動の大きさが減少するように、制御演算装置6で
演算し加振素子2に修正信号を出力する。このように制
御することで、壁体1の振動を逐次低減させる。
In this control arithmetic unit 6, the microphone 5
The vibration value of the wall body 1 generated when the sound pressure from the sound generation source 4 reaches the wall body 1 is calculated based on the signal from the A signal is output so that the wall body 1 is vibrated so that the vibrations are canceled. The magnitude of vibration is detected by the vibration sensor 3, and the detected signal is input to the control arithmetic unit 6. And
In order to reduce the magnitude of this vibration, the control arithmetic unit 6 calculates and outputs a correction signal to the vibrating element 2. By controlling in this way, the vibration of the wall body 1 is sequentially reduced.

【0011】図1の実施例では、3個の加振素子2aな
いし2cと、3個の振動センサ3aないし3cを用いた
場合について示したが、これらの個数は必要に応じて任
意の個数に増減することができる。
Although the embodiment of FIG. 1 shows the case where three vibrating elements 2a to 2c and three vibrating sensors 3a to 3c are used, the number of these may be set to any number as required. Can be increased or decreased.

【0012】また、壁体1に取り付けられている加振素
子2と振動センサ3は、両者の中心位置が一致していれ
ば壁体1のいずれの面に配置されてもよい。すなわち、
図1に示すように、壁体1の一方の面に加振素子2と振
動センサ3を両者の中心位置を一致させて配置してもよ
く、また壁体1の一方の面に加振素子2を配置させ、他
方の面に振動センサ3を配置させた構成においても同様
の制御効果が得られる。
Further, the vibrating element 2 and the vibration sensor 3 attached to the wall 1 may be arranged on any surface of the wall 1 as long as the central positions of the two are the same. That is,
As shown in FIG. 1, the vibrating element 2 and the vibration sensor 3 may be arranged on one surface of the wall body 1 so that the center positions of the both are aligned with each other. The same control effect can be obtained in a configuration in which the vibration sensor 3 is arranged on the other surface while the vibration sensor 3 is arranged.

【0013】[0013]

【発明の効果】以上に説明したように、本発明の壁体の
遮音装置及び遮音方法によれば、音発生源と壁体との間
に配置したマイクロホンで壁体に向かう音を検出し、ま
た前記音発生源からの音波によって発生する壁体の振動
を壁体に取り付けられた振動センサにより検出し、前記
マイクロホンからの信号を受けて制御演算装置で前記壁
体の振動を相殺するように演算し、この演算された信号
を前記振動センサと同一位置に設置された加振素子に与
えるようにしたので、制御された加振素子が新たな一次
音源となることがなく、高い遮音性能をもつ壁体の遮音
装置が得られる効果がある。
As described above, according to the sound insulation device and the sound insulation method for a wall of the present invention, the sound directed toward the wall is detected by the microphone arranged between the sound source and the wall. Further, the vibration of the wall body generated by the sound wave from the sound source is detected by a vibration sensor attached to the wall body, and a control arithmetic unit receives a signal from the microphone to cancel the vibration of the wall body. Since the calculation is performed and the calculated signal is given to the vibration element installed at the same position as the vibration sensor, the controlled vibration element does not become a new primary sound source, and high sound insulation performance is obtained. There is an effect that the sound insulation device of the wall body is obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例の概略構成図FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

【図2】従来例の概略構成図FIG. 2 is a schematic configuration diagram of a conventional example.

【図3】従来例の壁体振動特性図FIG. 3 is a wall vibration characteristic diagram of a conventional example.

【符号の説明】[Explanation of symbols]

1…壁体、2…加振素子、3…振動センサ、4…音発生
源、5…マイクロホン、6…制御演算装置
DESCRIPTION OF SYMBOLS 1 ... Wall body, 2 ... Exciting element, 3 ... Vibration sensor, 4 ... Sound source, 5 ... Microphone, 6 ... Control arithmetic unit

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 G10K 11/16 (72)発明者 横田 高志 大阪府大阪市中央区道修町3丁目5番11号 日本板硝子株式会社内 (72)発明者 森本 直樹 大阪府大阪市中央区道修町3丁目5番11号 日本板硝子株式会社内 (72)発明者 溝口 耕三 大阪府大阪市中央区道修町3丁目5番11号 日本板硝子株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI Technical indication location G10K 11/16 (72) Inventor Takashi Yokota 3-5-11 Doshomachi, Chuo-ku, Osaka-shi, Osaka Inside Nippon Sheet Glass Co., Ltd. (72) Inventor Naoki Morimoto 3-5-11 Doshumachi, Chuo-ku, Osaka City, Osaka Prefecture Inside Nippon Sheet Glass Co., Ltd. (72) Instructor Kozo Mizoguchi 3-5 Doshomachi, Chuo-ku, Osaka City, Osaka Prefecture No. 11 within Nippon Sheet Glass Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 音発生源からの音の音圧を検出するマイ
クロホンと、前記音発生源からの音波によって発生する
壁体の振動を検出する壁体に取り付けられた振動センサ
と、前記マイクロホンからの信号を受けて前記壁体に取
り付けられた加振素子に検出位置の振動を相殺するよう
に演算された信号を出力する制御演算装置とからなる壁
体の遮音装置であって、前記加振素子と前記振動センサ
が同一位置に設置されていることを特徴とする壁体の遮
音装置。
1. A microphone for detecting a sound pressure of a sound from a sound source, a vibration sensor attached to a wall body for detecting a vibration of a wall body generated by a sound wave from the sound source, and the microphone. Receiving a signal of the above, and outputting a signal calculated so as to cancel the vibration at the detection position to the vibration element attached to the wall body, the sound insulation device for the wall body, comprising: A sound insulation device for a wall, wherein an element and the vibration sensor are installed at the same position.
【請求項2】 前記加振素子と前記振動センサが、壁体
の一方の面に中心位置を一致させて取り付けられている
請求項1記載の壁体の遮音装置。
2. The sound insulation device for a wall body according to claim 1, wherein the vibrating element and the vibration sensor are attached to one surface of the wall body such that their center positions coincide with each other.
【請求項3】 前記加振素子が壁体の一方の面に取り付
けられるとともに、前記振動センサがその中心位置を前
記加振素子の中心位置と一致させて前記壁体の他方の面
に取り付けられている請求項1記載の壁体の遮音装置。
3. The vibrating element is attached to one surface of a wall body, and the vibration sensor is attached to the other surface of the wall body with its center position aligned with the center position of the vibrating element. The sound insulation device for a wall according to claim 1.
【請求項4】 音発生源からの音の音圧をマイクロホン
で検出するとともに前記音発生源からの音波によって発
生する壁体の振動をこの壁体に取り付けられた振動セン
サで検出し、前記マイクロホンからの信号に基づき制御
演算装置で前記壁体の振動を相殺するように演算して、
この演算された信号を前記振動センサと同一位置に設置
された加振素子に出力することを特徴とする壁体の遮音
方法。
4. The microphone detects the sound pressure of the sound from the sound source and the vibration sensor attached to the wall to detect the vibration of the wall body generated by the sound wave from the sound source. Based on the signal from the control calculation device to calculate to cancel the vibration of the wall,
A sound insulation method for a wall body, wherein the calculated signal is output to a vibration element installed at the same position as the vibration sensor.
JP6191356A 1994-07-22 1994-07-22 Device and method for sound insulation of wall body Pending JPH0836392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6191356A JPH0836392A (en) 1994-07-22 1994-07-22 Device and method for sound insulation of wall body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6191356A JPH0836392A (en) 1994-07-22 1994-07-22 Device and method for sound insulation of wall body

Publications (1)

Publication Number Publication Date
JPH0836392A true JPH0836392A (en) 1996-02-06

Family

ID=16273218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6191356A Pending JPH0836392A (en) 1994-07-22 1994-07-22 Device and method for sound insulation of wall body

Country Status (1)

Country Link
JP (1) JPH0836392A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010015552A (en) * 2008-06-03 2010-01-21 Panasonic Corp Active noise reduction device and system
WO2010131405A1 (en) * 2009-05-12 2010-11-18 パナソニック株式会社 Active noise control device
CN107560722A (en) * 2017-08-28 2018-01-09 华东交通大学 The high-precision noise measuring method and noise contribution analysis method of a kind of box-beam structure
JP2018022029A (en) * 2016-08-03 2018-02-08 大阪瓦斯株式会社 Active vibrations controller and method for control of active vibrations
CN112384973A (en) * 2018-05-04 2021-02-19 安德森公司 Multiband frequencies for noise attenuation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03228097A (en) * 1989-12-22 1991-10-09 Bridgestone Corp Vibration controller
JPH05181488A (en) * 1992-01-07 1993-07-23 Matsushita Electric Ind Co Ltd Sound insulating structure body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03228097A (en) * 1989-12-22 1991-10-09 Bridgestone Corp Vibration controller
JPH05181488A (en) * 1992-01-07 1993-07-23 Matsushita Electric Ind Co Ltd Sound insulating structure body

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010015552A (en) * 2008-06-03 2010-01-21 Panasonic Corp Active noise reduction device and system
WO2010131405A1 (en) * 2009-05-12 2010-11-18 パナソニック株式会社 Active noise control device
JPWO2010131405A1 (en) * 2009-05-12 2012-11-01 パナソニック株式会社 Active noise control device
US8705760B2 (en) 2009-05-12 2014-04-22 Panasonic Corporation Active noise control device
JP5562860B2 (en) * 2009-05-12 2014-07-30 パナソニック株式会社 Active noise control device
JP2018022029A (en) * 2016-08-03 2018-02-08 大阪瓦斯株式会社 Active vibrations controller and method for control of active vibrations
CN107560722A (en) * 2017-08-28 2018-01-09 华东交通大学 The high-precision noise measuring method and noise contribution analysis method of a kind of box-beam structure
CN112384973A (en) * 2018-05-04 2021-02-19 安德森公司 Multiband frequencies for noise attenuation
JP2021523402A (en) * 2018-05-04 2021-09-02 アンダーセン・コーポレーションAndersen Corporation Multi-band frequency targeting for noise attenuation

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