JPS5861429A - Moving microphone device - Google Patents

Moving microphone device

Info

Publication number
JPS5861429A
JPS5861429A JP15962681A JP15962681A JPS5861429A JP S5861429 A JPS5861429 A JP S5861429A JP 15962681 A JP15962681 A JP 15962681A JP 15962681 A JP15962681 A JP 15962681A JP S5861429 A JPS5861429 A JP S5861429A
Authority
JP
Japan
Prior art keywords
measurement
microphone
measuring
rope
room
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
JP15962681A
Other languages
Japanese (ja)
Inventor
Takuro Hayashi
卓郎 林
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15962681A priority Critical patent/JPS5861429A/en
Publication of JPS5861429A publication Critical patent/JPS5861429A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/35—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams
    • G10K11/352—Sound-focusing or directing, e.g. scanning using mechanical steering of transducers or their beams by moving the transducer

Abstract

PURPOSE:To move a measuring microphone, which measures the spatial distribution of a noise emitted from equipment suspended from the ceiling of a measurement room through pulleys, to an optional position in the internal space of the room. CONSTITUTION:A controller controls the rotation of each motor 10 to wind or unwind ropes 5a, 5b, 5c, and 5d around or from a rope wheel 8 by a prescribed length, thus moving a measuring microphone 6 to an optional horizontal and vertical position in a measurement room 1. Once the measuring microhphone 6 is moved to a prescribed position by the adjustment of the rope length, measurement is started, and then the acoustic signal of said microphone 6 is inputted to an amplifier 12, whose amplification output is inputted to a processor 13 such as a computer to perform prescribed signal processing, thereby measuring the spatial noise distribution in the measurement room 1.

Description

【発明の詳細な説明】 本発明は、機器から放射される騒音の空間的分布を測定
するために機器周囲の任意の位置に移動可能にした移動
マイク装置に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile microphone device that can be moved to any position around a device in order to measure the spatial distribution of noise emitted from the device.

騒音を発生している機器の音響出力（パワーレベル）や
放射される音の指向性特性、あるいは室内の音揚分布、
室内の共鳴特性等を測定するには、室内空間の多くの点
で、騒音測定をする必要がある０ 従来、上記のような騒音測定をする場合には、複数本の
マイクロホンを三脚等で固定して、室内の各点に設置し
、測定を行なっていたが、手作業で位置決めを行なうた
めに正確な位置決めが困難であり、またそのための労力
も大きかった。さらにマイクロホンの設置位置が室内空
間の高い位置になると不安定な設置になったり、目的と
する位置での測定が困難となる等の欠点があった。The acoustic output (power level) of the equipment producing the noise, the directional characteristics of the emitted sound, or the sound distribution in the room,
To measure indoor resonance characteristics, etc., it is necessary to measure noise at many points in the indoor space. Conventionally, when measuring noise as described above, multiple microphones are fixed on a tripod, etc. They were installed at various points in the room and measurements were taken, but since the positioning was done manually, accurate positioning was difficult and required a lot of effort. Furthermore, if the microphone is installed at a high position in the indoor space, there are disadvantages such as unstable installation and difficulty in measuring at the desired position.

本発明は、上記の事情に基づきなされたもので、測定室
の天井から滑車を介して懸下した測定用マイクロホンが
室内空間の任意の位置に移動し得るようにした移動マイ
ク装置を提供することを目的とする。The present invention has been made based on the above circumstances, and provides a mobile microphone device in which a measurement microphone suspended from the ceiling of a measurement room via a pulley can be moved to any position in the indoor space. With the goal.

以下に、本発明の一実施例を図面を参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.

第１図は、測定室内の縦断面図である。FIG. 1 is a longitudinal sectional view of the inside of the measurement chamber.

同図において、測定室１の天井２の四隅には、水平面内
で回転可能にした軸受３を有するキャスタ状の滑車４が
暇シ付けられている。In the figure, caster-shaped pulleys 4 having bearings 3 that are rotatable in a horizontal plane are attached to the four corners of a ceiling 2 of a measurement chamber 1.

この滑車４に４本のロープ５ａ　、　５ｂ　、　５ｃ　
、　５ｄをそれぞれ挿通し、一端を束ねる。この束ねた
口・−プ５ａ　、　５ｂ　、　５ｃ、、　５ｄの端部に
測定用マイクロホン６を固定する。Four ropes 5a, 5b, 5c are attached to this pulley 4.
, 5d through each and bundle one end. A measuring microphone 6 is fixed to the ends of the bundled mouthpieces 5a, 5b, 5c, 5d.

ロープ５ａ　、　５ｂ　、　５ｃ　、　５ｄの他端は、
それぞれの滑車４を介して測定室１の側壁７に設けられ
たロープ車８に導びかれる。このロープ車８は、伝達部
材９を介してモータ１ｏにより駆動される。The other ends of the ropes 5a, 5b, 5c, 5d are
Via the respective pulleys 4, they are guided to a rope sheave 8 provided on the side wall 7 of the measuring chamber 1. This rope pulley 8 is driven by a motor 1o via a transmission member 9.

このモータ１ｏは、図示番略したマイクロコンピュータ
を内蔵したコントローラにょシ回転が制御される。The rotation of this motor 1o is controlled by a controller having a built-in microcomputer (not shown).

すなわち、このコントローラによって各モータ１０の回
転が制御され、ロープ５ａ　、　５ｂ　、　５ｃ　、　
５ｄをそれぞれ所定の長さロープ車８に巻き暇す、ある
いは繰シ出し、測定用マイクロポン６を測定室Ｉの水平
方向及び垂直方向の任意の位置に移動を可能とする。That is, the rotation of each motor 10 is controlled by this controller, and the ropes 5a, 5b, 5c,
5d to a predetermined length on the rope wheel 8, or let out, thereby making it possible to move the measurement micropon 6 to any position in the measurement chamber I in the horizontal and vertical directions.

今、第３図及び第４図の略図を用いて制御系をさらに詳
述すると、測定用マイクロホン６をＯｌから０２の位置
、すなわち、図示の左方向にＸ、前彼方向にｙ、垂直方
向に２だけ移動させるとする。Now, to further explain the control system in detail using the schematic diagrams in FIGS. 3 and 4, the measurement microphone 6 is placed at a position from Ol to 02, that is, X in the left direction, y in the forward direction, and vertical direction. Suppose we move only 2 to .

、測定用マイクロポン６が測定室１の中央位置０１にあ
る場合には、各ロープ長ａ０１−凧−ｃ０１　＝薙＝ｌ
である。, when the measurement micropon 6 is located at the center position 01 of the measurement chamber 1, each rope length a01-kite-c01 = nagi = l
It is.

次に、前記マイクロポン６を０２の位置に移動させた場
合の投影面の各ロープ長をｌ、　、　４　、　ＩＩｓ　
、　１４とすると、これらの長さは、図示の符号を用い
て表わせば以下のようになる。Next, when the micropon 6 is moved to the position 02, each rope length on the projection plane is l, , 4, IIs
, 14, these lengths can be expressed using the symbols shown below.

４＝Ｐ［票］二Ｗ　・・輸（１） １１２−Ｊ冒Ｖ＋ｘ〒−］コ［丁ココゝ　　　叩・川・
（２）１！３＝　（４＋Ｑ’＋（−！：！、肩７　・・
・・・・・・（３）さらに、実際の各ロープ長を４＋４
＋　ｌ、　ｌ　１！４とし、これらのロープと水平面と
のなす角をそれぞれθ１゜θ２．θ８．θ４とすると。4 = P [vote] 2 W ... Export (1) 112-J Explosion V +
(2) 1!3= (4+Q'+(-!:!, Shoulder 7...
・・・・・・(3) Furthermore, the actual length of each rope is 4+4
+ l, l 1!4, and the angles between these ropes and the horizontal plane are θ1° θ2. θ8. Assuming θ4.

ｌ、’＝　１１　／　ｃｏｓθ１　　　　　　　　＝＝
四・（５１４＝　４　／　ｃｏｓθ２　　　　　　　　
−・・・−１６）６３　＝　ｄ３　／　ｃｏｓ　ａ３・
・−−１７１１ニー１４／ＣＯ５θ４　　　　　　　　
　　・・・・・・（８）となる。l,' = 11 / cosθ1 ==
4・(514=4/cosθ2
−・・・−16) 63 = d3 / cos a3・
・--1711 knee 14/CO5θ4
......(8).

しかして、各ロープの制御寸法を△４＋△１２．△ｅ３
＋△７ｉ＋４とすれば、ト記（１）〜（３）式よりｄ、
＝、−ｅ旨〜（１ｘ）’　４（＊−Ｌｙ）’／ｃｏｓａ
１　・’９１ｄ４＝４〜ｅ≦＝？−（＋−ｒ）’＋（Ｓ
＋琶ｃｏｓθ４・＋１３となり、これらの（９）〜（１
３式で決定し得る値をコントローラに入力し、制御量に
応じて各モータ１０を駆動し測定用マイクロホン６の任
意の位置への移動を可能とするものである。Therefore, the control dimension of each rope is △4+△12. △e3
If +△7i+4, then from equations (1) to (3), d,
=, -e effect~(1x)'4(*-Ly)'/cosa
1 ・'91d4=4〜e≦=? -(+-r)'+(S
+ cos θ4・+13, and these (9) to (1
A value that can be determined by Equation 3 is input to the controller, and each motor 10 is driven according to the control amount, thereby making it possible to move the measurement microphone 6 to an arbitrary position.

第５図ハ、１Ｉｌｋ音測定システムのブロック図を示し
、コントローラ１１により、各モータ１０の回転を制御
し、各ロープ車８を駆動して各ロープ長を調整する。こ
のロープ長の調整により、測定用マイクロホン６が所定
の位置に移動したところで、測定を開始すれば、前記マ
イクロホン６からの音響信号を増幅器１２に入力し、さ
らにこの増幅器１２で増幅された出力を計算機等の処理
機１３に入力し、所定の信号処理を行うことにより、測
定室１内の空間的騒音分布を測定することができる。FIG. 5C shows a block diagram of a 1Ilk sound measurement system, in which a controller 11 controls the rotation of each motor 10, drives each rope pulley 8, and adjusts each rope length. When the measurement microphone 6 is moved to a predetermined position by adjusting the rope length and measurement is started, the acoustic signal from the microphone 6 is input to the amplifier 12, and the output amplified by the amplifier 12 is input to the amplifier 12. By inputting the signal to a processor 13 such as a computer and performing predetermined signal processing, the spatial noise distribution within the measurement chamber 1 can be measured.

上記の説明から明らかなように本発明によれば、測定用
マイクロホンを測定室の四隅から滑車を介して懸丁した
ロープに固定し、このロープ長をそれぞれモータの回転
により制御するととによシ、前記マイクロホンを測定室
空間の任意の位置に移動し得るようにしたので、位置決
めのための労力が少なく、かり正確な位置決めが可能と
なる。また、床面には、マイクロホン設置用の三脚等を
必伸としないので、測定作業がし易く、つまずき等で不
慮の事故を生じさせる恐れもない。As is clear from the above description, according to the present invention, it is particularly advantageous to fix the measurement microphones to ropes suspended from the four corners of the measurement chamber via pulleys, and to control the length of each rope by the rotation of a motor. Since the microphone can be moved to any position in the measurement room space, the labor required for positioning is small and accurate positioning is possible. Furthermore, since a tripod for installing a microphone does not have to be extended on the floor, measurement work is easy and there is no risk of unexpected accidents such as tripping.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明の一実施例を示す移動マイク装置の縦
断面図、第２図は、同じくその平面図、第３図及び第４
図は、上記装置の制御系を駁明するための図、第５図は
、騒音測定システムのブロック図である。 １・・・測定室、　　２・・・天井、　　３・・・軸受
。 ４・・・滑車＋　　　５ａ　、　５ｂ　、　５ｃ　、　
５ｄ　・・ｏ−プ。 ６・・測定用マイクロホン、　　７・・・側壁。 ８・・ロープ車、　　９・・・伝達部材。 １０・・・モータ、１１　・・コントローラ。 １２・・増幅器、１３・・処理機。 出願代理人弁理士　菊　池　五　部FIG. 1 is a longitudinal sectional view of a mobile microphone device showing one embodiment of the present invention, FIG. 2 is a plan view thereof, and FIGS.
The figure is a diagram for clarifying the control system of the above device, and FIG. 5 is a block diagram of the noise measurement system. 1...Measurement room, 2...Ceiling, 3...Bearing. 4... Pulley + 5a, 5b, 5c,
5d...Oop. 6...Measurement microphone, 7...Side wall. 8... Rope car, 9... Transmission member. 10...Motor, 11...Controller. 12...Amplifier, 13...Processor. Application agent Patent attorney Gobe Kikuchi

Claims (1)

【特許請求の範囲】[Claims] 測定室の天井の四偶に取り付けた滑車と、この滑車に挿
通しｆｃ４本のロープと、このロープの結束端に固定し
た測定用マイクロホンと、前記滑車を介して導ひかれた
前記ロープを巻回するロープ車と、このロープ車を駆動
するモータと、この・モータの回転を制御するコントロ
ーラとを備えたことを特徴とする移動マイクロホン装置
。A pulley attached to a quadruple on the ceiling of the measurement room, four fc ropes inserted through the pulley, a measurement microphone fixed to the bundled end of the rope, and the rope guided through the pulley is wound. What is claimed is: 1. A mobile microphone device comprising: a rope wheel for moving the rope wheel; a motor for driving the rope wheel; and a controller for controlling rotation of the motor.
JP15962681A 1981-10-07 1981-10-07 Moving microphone device Pending JPS5861429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15962681A JPS5861429A (en) 1981-10-07 1981-10-07 Moving microphone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15962681A JPS5861429A (en) 1981-10-07 1981-10-07 Moving microphone device

Publications (1)

Publication Number Publication Date
JPS5861429A true JPS5861429A (en) 1983-04-12

Family

ID=15697824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15962681A Pending JPS5861429A (en) 1981-10-07 1981-10-07 Moving microphone device

Country Status (1)

Country Link
JP (1) JPS5861429A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178792U (en) * 1983-05-12 1984-11-29 能美防災株式会社 Alarm device for residential noise, etc.
EP0469956A1 (en) * 1990-07-20 1992-02-05 Nicotec Co., Ltd. Plane motion mechanism
WO2002090234A1 (en) * 2001-05-08 2002-11-14 Krusche Lagertechnik Ag System and method for measuring a horizontal deviation of a load receiving element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178792U (en) * 1983-05-12 1984-11-29 能美防災株式会社 Alarm device for residential noise, etc.
EP0469956A1 (en) * 1990-07-20 1992-02-05 Nicotec Co., Ltd. Plane motion mechanism
WO2002090234A1 (en) * 2001-05-08 2002-11-14 Krusche Lagertechnik Ag System and method for measuring a horizontal deviation of a load receiving element
US6962091B2 (en) * 2001-05-08 2005-11-08 Krusche Lagertechnik Ag System and method for measuring a horizontal deviation of a load receiving element

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