JP2017083260A - Electronic device noise measurement method, and noise measurement device - Google Patents

Electronic device noise measurement method, and noise measurement device Download PDF

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Publication number
JP2017083260A
JP2017083260A JP2015210935A JP2015210935A JP2017083260A JP 2017083260 A JP2017083260 A JP 2017083260A JP 2015210935 A JP2015210935 A JP 2015210935A JP 2015210935 A JP2015210935 A JP 2015210935A JP 2017083260 A JP2017083260 A JP 2017083260A
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Japan
Prior art keywords
noise
measurement position
carriage
sound collecting
noise measurement
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JP2015210935A
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Japanese (ja)
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JP6418132B2 (en
Inventor
善彰 財前
Yoshiaki Zaizen
善彰 財前
多津彦 平谷
Tatsuhiko Hiratani
多津彦 平谷
尾田 善彦
Yoshihiko Oda
善彦 尾田
太 福池
Futoshi Fukuike
太 福池
東 陽一
Yoichi Azuma
陽一 東
仁 高木
Hitoshi Takagi
仁 高木
優介 宿里
Yusuke Shukuri
優介 宿里
佳之 丸山
Yoshiyuki Maruyama
佳之 丸山
西名 慶晃
Yoshiaki Nishina
慶晃 西名
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JFE Steel Corp
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JFE Steel Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an electronic device noise measurement method and noise measurement device that can highly accurately measure a spatial distribution of noise without requiring much labor and costs.SOLUTION: An electronic device noise measurement method includes the steps of: anchoring a rod-like support body 2 to which sound collection means 6 is loaded extending in a horizontal direction to a stationary part 3 provided in a carrier 5 movable in an x-direction, and movable in a z-direction; and after adjusting an X-direction location of the carrier 5 and a Z-direction location of the stationary part 3 so that the sound collection means 6 is located in the vicinity of an electronic device 10, adjusting the X-direction location of the carrier 5 and the Z-direction location of the stationary part 3 so as to allow a laser pointer 7 attached to the carrier 5 to trace a measurement location pattern 21 described in a mount 20 for specifying a noise measurement location of the electronic device 10, and thereby measuring a spatial distribution of noise of the electronic device 10 by the sound collection means 6.SELECTED DRAWING: Figure 3

Description

本発明は、集音マイクや集音センサ等の集音手段を利用する電気機器の騒音測定方法及
び騒音測定装置に関する。
The present invention relates to a noise measurement method and a noise measurement apparatus for electrical equipment that use sound collection means such as a sound collection microphone and a sound collection sensor.

近年、地球環境保護の観点から省エネルギー化が推進されており、電気機器については
高効率化や小型化が指向されている。ところが、モータ、トランス、リアクトル等の電気
機器では、小型化に起因して設計磁束密度が高くなることによって、騒音が問題になって
きている。特にリアクトルは、太陽光発電のパワーコンディショナー内部の電力変換機器
に用いられることが多く、このパワーコンディショナーは直接人の耳に触れる機会が多い
。このため、リアクトルについては、低騒音化が要求されており、リアクトルの騒音発生
箇所を特定する必要がある。電気機器の騒音発生箇所を特定する方法としては、集音マイ
クや集音センサ等の集音手段を利用する騒音測定技術が知られている。
In recent years, energy saving has been promoted from the viewpoint of protecting the global environment, and high efficiency and downsizing of electrical equipment are aimed at. However, in electric devices such as motors, transformers, and reactors, noise has become a problem due to an increase in design magnetic flux density due to miniaturization. In particular, the reactor is often used for power conversion equipment inside a power conditioner for photovoltaic power generation, and this power conditioner has many opportunities to directly touch the human ear. For this reason, noise reduction is requested | required about a reactor and it is necessary to specify the noise generation location of a reactor. As a method for specifying a noise generation location of an electric device, a noise measurement technique using sound collection means such as a sound collection microphone or a sound collection sensor is known.

特開平4−290930号公報JP-A-4-290930

しかしながら、従来までの集音手段を利用する騒音測定技術では、測定者の違いによる
バラツキや測定者の衣服による吸音等の外部要因によるバラツキ等によって、騒音の空間
分布を精度良く測定することができない。なお、このような問題点を解決するために、特
許文献1には、複数のマイクロフォンを二次元的に配設して音響インテンシティを測定す
る方法が記載されている。しかしながら、特許文献1記載の方法によれば、複数のマイク
ロフォンを用意しなければならないために設備コストが嵩む。また、測定対象の大きさに
応じてマイクロフォンの数や配置を変更しなければならないために多くの労力を要する。
However, conventional noise measurement techniques using sound collection means cannot accurately measure the spatial distribution of noise due to variations due to differences in the measurer or variations due to external factors such as sound absorption by the measurer's clothing. . In order to solve such a problem, Patent Document 1 describes a method of measuring sound intensity by arranging a plurality of microphones two-dimensionally. However, according to the method described in Patent Document 1, since a plurality of microphones must be prepared, the equipment cost increases. In addition, a lot of labor is required because the number and arrangement of microphones must be changed according to the size of the object to be measured.

本発明は、上記課題に鑑みてなされたものであって、その目的は、多くの労力及びコス
トを要することなく騒音の空間分布を精度良く測定可能な電気機器の騒音測定方法及び騒
音測定装置を提供することにある。
The present invention has been made in view of the above problems, and an object of the present invention is to provide a noise measurement method and a noise measurement apparatus for an electrical device that can accurately measure the spatial distribution of noise without requiring much labor and cost. It is to provide.

本発明に係る電気機器の騒音測定方法は、集音手段を用いて電気機器の騒音を測定する
電気機器の騒音測定方法であって、水平方向に移動可能な台車に設けられた鉛直方向に移
動可能な固定部に、前記集音手段が取り付けられた水平方向に延伸する棒状の支持体を固
定するステップと、前記集音手段が前記電気機器の近傍に位置するように前記台車の水平
方向位置及び前記固定部の鉛直方向位置を調整した後、前記台車に取り付けられたトレー
ス手段によって測定位置パターン図に記載された前記電気機器の騒音測定位置を特定する
ための測定位置パターンをトレースするように前記台車の水平方向位置及び前記固定部の
鉛直方向位置を調整することによって、前記集音手段によって前記電気機器の騒音の空間
分布を測定するステップと、を含むことを特徴とする。
The noise measurement method for electrical equipment according to the present invention is a noise measurement method for electrical equipment that measures the noise of electrical equipment using sound collection means, and is moved in a vertical direction provided on a horizontally movable carriage. Fixing a horizontally extending rod-like support to which the sound collecting means is attached to a possible fixing portion; and a horizontal position of the carriage so that the sound collecting means is located in the vicinity of the electric device. And, after adjusting the vertical position of the fixed part, trace the measurement position pattern for specifying the noise measurement position of the electrical equipment described in the measurement position pattern diagram by the tracing means attached to the carriage. Measuring the spatial distribution of noise of the electrical equipment by the sound collecting means by adjusting the horizontal position of the carriage and the vertical position of the fixed portion; And wherein the Mukoto.

本発明に係る電気機器の騒音測定方法は、上記発明において、前記トレース手段は、前
記固定部に設けられた、レーザー光を射出するレーザーポインタであり、前記測定位置パ
ターン図は前記測定位置パターンが記載された台紙であることを特徴とする。
In the noise measurement method for electrical equipment according to the present invention, in the above invention, the trace means is a laser pointer that emits laser light provided in the fixed portion, and the measurement position pattern diagram shows the measurement position pattern. It is the described mount.

本発明に係る電気機器の騒音測定装置は、集音手段を用いて電気機器の騒音を測定する
電気機器の騒音測定装置であって、前記集音手段が取り付けられた、水平方向に延伸する
棒状の支持体と、前記支持体が固定された、鉛直方向に移動可能な固定部と、前記固定部
が設置された、水平方向に移動可能な台車と、前記台車に設置された、前記台車の近傍に
設けられた測定位置パターン図に記載された前記電気機器の騒音測定位置を特定するため
の測定位置パターンをトレースするトレース手段と、を備えることを特徴とする。
The noise measuring apparatus for electric equipment according to the present invention is a noise measuring apparatus for electric equipment that measures the noise of the electric equipment using the sound collecting means, and is a bar-like shape extending in the horizontal direction to which the sound collecting means is attached. A support unit fixed to the support unit, the fixed unit movable in the vertical direction, the fixed unit installed in the horizontally movable cart, and the cart installed in the cart. And trace means for tracing the measurement position pattern for specifying the noise measurement position of the electrical equipment described in the measurement position pattern diagram provided in the vicinity.

本発明に係る電気機器の騒音測定装置は、上記発明において、前記トレース手段は、前
記固定部に設けられた、レーザー光を射出するレーザーポインタであり、前記測定位置パ
ターン図は前記測定位置パターンが記載された台紙であることを特徴とする。
In the above-described invention, the noise measurement apparatus for an electrical device according to the present invention is characterized in that the trace means is a laser pointer that emits laser light provided in the fixed portion, and the measurement position pattern diagram shows the measurement position pattern. It is the described mount.

本発明に係る電気機器の騒音測定方法及び騒音測定装置によれば、多くの労力及びコス
トを要することなく騒音の空間分布を精度良く測定することができる。
According to the noise measurement method and the noise measurement apparatus for electrical equipment according to the present invention, it is possible to accurately measure the spatial distribution of noise without requiring much labor and cost.

図1は、本発明の一実施形態である電気機器の騒音測定装置の構成を示す側面図である。FIG. 1 is a side view showing a configuration of a noise measuring device for an electric device according to an embodiment of the present invention. 図2は、本発明の一実施形態である電気機器の騒音測定装置の構成を示す平面図である。FIG. 2 is a plan view showing a configuration of a noise measuring apparatus for an electric device according to an embodiment of the present invention. 図3は、本発明の一実施形態である電気機器の騒音測定方法を説明するための側面図である。FIG. 3 is a side view for explaining a noise measurement method for an electric device according to an embodiment of the present invention. 図4は、本発明の一実施形態である電気機器の騒音測定方法を説明するための斜視図である。FIG. 4 is a perspective view for explaining a noise measurement method for an electric device according to an embodiment of the present invention. 図5は、騒音測定位置を説明するための模式図である。FIG. 5 is a schematic diagram for explaining the noise measurement position. 図6は、本発明の一実施形態である電気機器の騒音測定装置を用いずに測定者が手作業で測定したリアクトルの騒音の2次元分布を示す図である。FIG. 6 is a diagram showing a two-dimensional distribution of reactor noise measured manually by a measurer without using the electrical equipment noise measurement apparatus according to an embodiment of the present invention. 図7は、本発明の一実施形態である電気機器の騒音測定装置を用いて測定者が測定したリアクトルの騒音の2次元分布を示す図である。FIG. 7 is a diagram showing a two-dimensional distribution of reactor noise measured by a measurer using the noise measuring apparatus for electric equipment according to an embodiment of the present invention.

以下、図面を参照して、本発明の一実施形態である電気機器の騒音測定装置の構成及び
その動作について説明する。
Hereinafter, with reference to the drawings, the configuration and operation of a noise measuring apparatus for an electric device according to an embodiment of the present invention will be described.

〔構成〕
始めに、図1,図2を参照して、本発明の一実施形態である電気機器の騒音測定装置の
構成について説明する。図1は、本発明の一実施形態である電気機器の騒音測定装置の構
成を示す側面図である。図2は、本発明の一実施形態である電気機器の騒音測定装置の構
成を示す平面図である。図1に示すように、本発明の一実施形態である電気機器の騒音測
定装置1は、電気機器10の騒音発生位置を特定するために電気機器10の騒音の空間分
布を測定する装置であり、支持体2、固定部3、ジャッキ4、台車5、及び集音手段6を
主な構成要素として備えている。
〔Constitution〕
First, with reference to FIG. 1, FIG. 2, the structure of the noise measuring apparatus of the electrical equipment which is one Embodiment of this invention is demonstrated. FIG. 1 is a side view showing a configuration of a noise measuring device for an electric device according to an embodiment of the present invention. FIG. 2 is a plan view showing a configuration of a noise measuring apparatus for an electric device according to an embodiment of the present invention. As shown in FIG. 1, the noise measuring apparatus 1 for an electric device according to an embodiment of the present invention is a device that measures the spatial distribution of noise of the electric device 10 in order to specify the noise generation position of the electric device 10. , The support body 2, the fixed portion 3, the jack 4, the carriage 5, and the sound collecting means 6 are provided as main components.

図1及び図2に示すように、支持体2は、水平方向に延伸するパイプ等の棒状の部材に
よって構成されており、支持体2の一方の端部付近に集音手段6が取り付けられている。
なお、以下では、支持体2の延伸方向をx方向、水平面内においてx方向に直交する方向
をy方向、x方向及びy方向に直交する方向(鉛直方向)をz方向と定義する。
As shown in FIGS. 1 and 2, the support body 2 is configured by a rod-like member such as a pipe extending in the horizontal direction, and a sound collecting means 6 is attached near one end of the support body 2. Yes.
In the following, the extending direction of the support 2 is defined as the x direction, the direction orthogonal to the x direction in the horizontal plane is defined as the y direction, and the direction orthogonal to the x direction and the y direction (vertical direction) is defined as the z direction.

固定部3は、支持体2の他方の端部付近を固定することによって支持体2を支持する治
具であり、ジャッキ4の上面に設けられている。
The fixing portion 3 is a jig that supports the support 2 by fixing the vicinity of the other end of the support 2, and is provided on the upper surface of the jack 4.

ジャッキ4は、z方向に沿って移動可能に固定部3を支持する部材であり、台車5の上
面に設けられている。ジャッキ4は、矢印Aで示すようにyz面内において回転部材4a
が回転操作されるのに応じて開閉操作されることによって、矢印Bで示すように固定部3
をz方向に沿って移動する。z方向に沿って固定部3を移動することによって、固定部3
に固定されている支持体2もz方向に沿って移動し、結果、支持体2に支持されている集
音手段6もz方向に沿って移動する。
The jack 4 is a member that supports the fixed portion 3 so as to be movable along the z direction, and is provided on the upper surface of the carriage 5. As shown by the arrow A, the jack 4 has a rotating member 4a in the yz plane.
As shown by the arrow B, the fixing portion 3 is opened and closed in response to the rotating operation.
Is moved along the z direction. By moving the fixing part 3 along the z direction, the fixing part 3
The support 2 fixed to the z is also moved along the z direction. As a result, the sound collecting means 6 supported by the support 2 is also moved along the z direction.

台車5は、下部に車輪5aを備える移動体であり、xy平面内(水平面内)において移
動可能にジャッキ4を支持する。本実施形態では、台車5は、電気機器10の騒音測定面
から所定距離離間して配置され、且つ、矢印Cで示すように電気機器10の騒音測定面に
対して平行なx方向に沿って敷設されたレールR上を移動する。レールR上を台車5が移
動することによって、電気機器10の騒音測定面と集音手段6との間の距離が常に同一の
距離に保たれた状態で集音手段6を移動させることができるので、騒音を定量的に測定で
きる。なお、本実施形態では、台車5のx方向の移動範囲を規制するためにレールRのx
方向端部には台車5の移動を規制するストッパーSが配設されている。
The carriage 5 is a moving body having wheels 5a at the lower part, and supports the jack 4 so as to be movable in the xy plane (in the horizontal plane). In the present embodiment, the carriage 5 is arranged at a predetermined distance from the noise measurement surface of the electric device 10 and, as indicated by an arrow C, along the x direction parallel to the noise measurement surface of the electric device 10. It moves on the laid rail R. By moving the carriage 5 on the rail R, the sound collecting means 6 can be moved in a state in which the distance between the noise measurement surface of the electric device 10 and the sound collecting means 6 is always kept at the same distance. Therefore, noise can be measured quantitatively. In this embodiment, in order to restrict the movement range of the cart 5 in the x direction,
A stopper S that restricts the movement of the carriage 5 is disposed at the direction end.

集音手段6は、集音マイクや集音センサ等の集音装置によって構成され、集音手段6に
よって収集された電気機器10の騒音のデータは、電気配線6aを介して図示しない情報
処理装置に出力される。図示しない情報処理装置は、集音手段6によって収集された騒音
のデータを用いて電気機器10の騒音の空間分布のデータを生成する。
The sound collecting means 6 is constituted by a sound collecting device such as a sound collecting microphone or a sound collecting sensor, and the noise data of the electric device 10 collected by the sound collecting means 6 is an information processing device (not shown) via the electric wiring 6a. Is output. An information processing device (not shown) generates noise spatial distribution data of the electrical device 10 using the noise data collected by the sound collecting means 6.

このように本発明の一実施形態である電気機器の騒音測定装置1では、集音手段6は支
持体2によって台車5から離間して設置されている。このため、騒音が台車5に反射した
り、測定者の衣服等で吸収されたりすることによって、集音手段6による集音処理に影響
が生じることを抑制できる。すなわち、集音手段6によって電気機器10の騒音を精度高
く測定できる。
As described above, in the noise measuring apparatus 1 for an electrical apparatus according to an embodiment of the present invention, the sound collecting means 6 is installed away from the carriage 5 by the support 2. For this reason, it is possible to prevent the sound collection processing by the sound collection means 6 from affecting the noise reflected on the carriage 5 or absorbed by the measurer's clothes or the like. That is, the noise of the electric device 10 can be measured with high accuracy by the sound collecting means 6.

〔騒音測定方法〕
次に、図3〜図5を参照して、本発明の一実施形態である電気機器の騒音測定装置1を
利用した電気機器の騒音測定方法について説明する。図3は、本発明の一実施形態である
電気機器の騒音測定方法を説明するための側面図である。図4は、本発明の一実施形態で
ある電気機器の騒音測定方法を説明するための斜視図である。図5は、騒音測定位置を説
明するための模式図である。
[Noise measurement method]
Next, with reference to FIGS. 3-5, the noise measuring method of the electric equipment using the noise measuring apparatus 1 of the electric equipment which is one Embodiment of this invention is demonstrated. FIG. 3 is a side view for explaining a noise measurement method for an electric device according to an embodiment of the present invention. FIG. 4 is a perspective view for explaining a noise measurement method for an electric device according to an embodiment of the present invention. FIG. 5 is a schematic diagram for explaining the noise measurement position.

図3(a)に示すように、本発明の一実施形態である電気機器の騒音測定装置1を利用
して電気機器10の騒音を測定する際には、始めに、集音手段6の位置が電気機器10の
近傍に位置するように台車5のx方向位置及び支持体2のz方向位置を調整する。次に、
電気機器10の騒音測定位置を特定するための測定位置パターン21が記載された台紙2
0を台紙20の法線方向がy方向と平行になるように台車5の近傍に設置する。本実施形
態では、図3(b)に示すように、測定位置パターン21は、x方向に伸びるパターンと
z方向に伸びるパターンとが連続的に接続されたジグザグ状のパターンによって形成され
ている。
As shown in FIG. 3A, when measuring the noise of the electric device 10 using the electric device noise measuring apparatus 1 according to an embodiment of the present invention, first, the position of the sound collecting means 6 is determined. Are adjusted in the x direction position of the carriage 5 and the z direction position of the support body 2 so as to be positioned in the vicinity of the electric device 10. next,
A mount 2 on which a measurement position pattern 21 for specifying a noise measurement position of the electric device 10 is described
0 is installed in the vicinity of the carriage 5 so that the normal direction of the mount 20 is parallel to the y direction. In this embodiment, as shown in FIG. 3B, the measurement position pattern 21 is formed by a zigzag pattern in which a pattern extending in the x direction and a pattern extending in the z direction are continuously connected.

次に、図4に示すように、台紙20に向けてレーザー光を射出するレーザーポインタ7
を治具7aによって支持体2の近傍に設置した後、台車5のx方向位置及び支持体2のz
方向位置を調整することによって、レーザー光の照射位置Pで測定位置パターン21をト
レースする。これにより、集音手段6は、レーザー光と同じ移動軌跡で電気機器10の騒
音を測定する。すなわち、図5に示すように、集音手段6は、測定位置パターン21の形
状と同じ移動軌跡22に沿って始点22aから終点22bまで移動しながら電気機器10
の騒音を規則的に測定する。なお、本実施形態では、レーザー光によって測定位置パター
ン21をトレースしたが、台紙20の方向に伸びる指示棒を支持体2に設置し、この指示
棒によって測定位置パターン21をトレースしてもよい。
Next, as shown in FIG. 4, a laser pointer 7 that emits laser light toward the mount 20.
Is installed in the vicinity of the support 2 by the jig 7a, and then the position of the carriage 5 in the x direction and the z of the support 2 are
The measurement position pattern 21 is traced at the irradiation position P of the laser beam by adjusting the direction position. Thereby, the sound collection means 6 measures the noise of the electric equipment 10 with the same movement locus as a laser beam. That is, as shown in FIG. 5, the sound collecting unit 6 moves from the start point 22 a to the end point 22 b along the same movement locus 22 as the shape of the measurement position pattern 21.
Measure noise regularly. In the present embodiment, the measurement position pattern 21 is traced by laser light. However, an indication bar extending in the direction of the mount 20 may be installed on the support 2 and the measurement position pattern 21 may be traced by this indication bar.

以上のように、本発明の一実施形態である電気機器の騒音測定方法では、x方向に移動
可能な台車5に設けられたz方向に移動可能な固定部3に、集音手段6が取り付けられた
水平方向に延伸する棒状の支持体2を固定するステップと、集音手段6が電気機器10の
近傍に位置するように台車5のx方向位置及び固定部3のz方向位置を調整した後、台車
5に取り付けられたレーザーポインタ7によって台紙20に記載された電気機器10の騒
音測定位置を特定するための測定位置パターン21をトレースするように台車5のx方向
位置及び固定部3のz方向位置を調整することによって、集音手段6によって電気機器1
0の騒音の空間分布を測定するステップと、を含む。
As described above, in the noise measurement method for electrical equipment according to an embodiment of the present invention, the sound collecting means 6 is attached to the fixed portion 3 movable in the z direction provided on the cart 5 movable in the x direction. The step of fixing the horizontally extending rod-shaped support 2 and the x-direction position of the carriage 5 and the z-direction position of the fixing portion 3 were adjusted so that the sound collecting means 6 was positioned in the vicinity of the electric device 10. Then, the position of the carriage 5 in the x direction and the fixed portion 3 are traced so as to trace the measurement position pattern 21 for specifying the noise measurement position of the electric device 10 described on the mount 20 by the laser pointer 7 attached to the carriage 5. By adjusting the position in the z direction, the electrical equipment 1 is collected by the sound collecting means 6.
Measuring the spatial distribution of zero noise.

これにより、測定者の違いによるバラツキや測定者の衣服による吸音等の外部要因によ
るバラツキ等の影響を受けることなく、騒音の空間分布を精度良く測定することができる
。また、1つの集音手段によって騒音を測定できるので、多くの労力及びコストを要する
ことなく騒音の空間分布を測定できる。すなわち、本発明の一実施形態である電気機器の
騒音測定方法によれば、多くの労力及びコストを要することなく騒音の空間分布を精度良
く測定することができる。
As a result, the spatial distribution of noise can be accurately measured without being affected by variations due to differences in the measurer and variations due to external factors such as sound absorption by the measurer's clothes. Further, since noise can be measured by one sound collecting means, the spatial distribution of noise can be measured without requiring much labor and cost. In other words, according to the noise measurement method for electrical equipment according to an embodiment of the present invention, the spatial distribution of noise can be accurately measured without much labor and cost.

図6(a),(b)は、本発明の一実施形態である電気機器の騒音測定装置を用いずに
測定者が手作業で測定したリアクトルの騒音の2次元分布を示す図である。図7(a),
(b)は、本発明の一実施形態である電気機器の騒音測定装置を用いて測定者が測定した
リアクトルの騒音の2次元分布を示す図である。なお、図6(a),(b)及び図7(a
),(b)は、リアクトルの騒音の2次元分布を同じ作動条件で2回測定した結果を示し
ている。図6(a),(b)に示すように、本発明の一実施形態である電気機器の騒音測
定装置を用いずにリアクトルの騒音を測定した場合、騒音の2次元分布REが不明瞭とな
り、且つ、測定タイミングの違いによって騒音の2次元分布REが変化することが確認さ
れた。これに対して、本発明の一実施形態である電気機器の騒音測定装置を用いてリアク
トルの騒音を測定した場合には、図7(a),(b)に示すように、騒音の2次元分布R
Eが明瞭となることによって騒音源の特定が容易となり、且つ、測定タイミングの違いに
よって騒音の2次元分布REが変化しないことが確認された。以上のことから、本発明の
一実施形態である電気機器の騒音測定装置によれば、多くの労力及びコストを要すること
なく騒音の空間分布を精度良く測定できることが確認された。
FIGS. 6A and 6B are diagrams showing a two-dimensional distribution of reactor noise measured manually by a measurer without using a noise measuring apparatus for electric equipment according to an embodiment of the present invention. FIG. 7 (a),
(B) is a figure which shows the two-dimensional distribution of the noise of the reactor which the measurer measured using the noise measuring apparatus of the electrical equipment which is one Embodiment of this invention. 6A, 6B and 7A.
), (B) show the results of measuring the two-dimensional distribution of reactor noise twice under the same operating conditions. As shown in FIGS. 6 (a) and 6 (b), when the noise of the reactor is measured without using the noise measuring apparatus for electric equipment according to an embodiment of the present invention, the two-dimensional distribution RE of noise becomes unclear. In addition, it was confirmed that the two-dimensional noise distribution RE changes depending on the measurement timing. On the other hand, when the noise of the reactor is measured using the noise measuring apparatus for electric equipment according to one embodiment of the present invention, as shown in FIGS. Distribution R
It was confirmed that the noise source can be easily identified by clarifying E, and the two-dimensional noise distribution RE does not change due to the difference in measurement timing. From the above, it was confirmed that according to the noise measuring apparatus for electrical equipment according to an embodiment of the present invention, the spatial distribution of noise can be measured with high accuracy without requiring much labor and cost.

以上、本発明者らによってなされた発明を適用した実施の形態について説明したが、本
実施形態による本発明の開示の一部をなす記述及び図面により本発明は限定されることは
ない。すなわち、本実施形態に基づいて当業者等によりなされる他の実施の形態、実施例
、及び運用技術等は全て本発明の範疇に含まれる。
The embodiment to which the invention made by the present inventors is applied has been described above, but the present invention is not limited by the description and the drawings that constitute a part of the disclosure of the present invention. That is, other embodiments, examples, operational techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

1 電気機器の騒音測定装置
2 支持体
3 固定部
4 ジャッキ
5 台車
5a 車輪
6 集音手段
7 レーザーポインタ
7a 治具
10 電気機器
DESCRIPTION OF SYMBOLS 1 Noise measuring device of electric equipment 2 Support body 3 Fixing part 4 Jack 5 Cart 5a Wheel 6 Sound collecting means 7 Laser pointer 7a Jig 10 Electric equipment

Claims (4)

集音手段を用いて電気機器の騒音を測定する電気機器の騒音測定方法であって、
水平方向に移動可能な台車に設けられた鉛直方向に移動可能な固定部に、前記集音手段
が取り付けられた水平方向に延伸する棒状の支持体を固定するステップと、
前記集音手段が前記電気機器の近傍に位置するように前記台車の水平方向位置及び前記
固定部の鉛直方向位置を調整した後、前記台車に取り付けられたトレース手段によって測
定位置パターン図に記載された前記電気機器の騒音測定位置を特定するための測定位置パ
ターンをトレースするように前記台車の水平方向位置及び前記固定部の鉛直方向位置を調
整することによって、前記集音手段によって前記電気機器の騒音の空間分布を測定するス
テップと、
を含むことを特徴とする電気機器の騒音測定方法。
A method for measuring noise of an electric device using a sound collecting means to measure the noise of the electric device,
A step of fixing a rod-like support extending in the horizontal direction to which the sound collecting means is attached to a fixing portion that is movable in a vertical direction provided on a cart that is movable in the horizontal direction;
After adjusting the horizontal position of the carriage and the vertical position of the fixed portion so that the sound collecting means is located in the vicinity of the electrical device, the sound collecting means is described in the measurement position pattern diagram by the tracing means attached to the carriage. Further, the sound collecting means adjusts the horizontal position of the carriage and the vertical position of the fixing portion so as to trace a measurement position pattern for specifying the noise measurement position of the electric apparatus. Measuring the spatial distribution of noise;
A noise measurement method for electrical equipment, comprising:
前記トレース手段は、前記固定部に設けられた、レーザー光を射出するレーザーポイン
タであり、前記測定位置パターン図は前記測定位置パターンが記載された台紙であること
を特徴とする請求項1に記載の電気機器の騒音測定方法。
The said trace means is a laser pointer which inject | emitted the said fixed part and inject | emits a laser beam, The said measurement position pattern figure is the mount on which the said measurement position pattern was described. Noise measurement method for electrical equipment.
集音手段を用いて電気機器の騒音を測定する電気機器の騒音測定装置であって、
前記集音手段が取り付けられた、水平方向に延伸する棒状の支持体と、
前記支持体が固定された、鉛直方向に移動可能な固定部と、
前記固定部が設置された、水平方向に移動可能な台車と、
前記台車に設置された、前記台車の近傍に設けられた測定位置パターン図に記載された
前記電気機器の騒音測定位置を特定するための測定位置パターンをトレースするトレース
手段と、
を備えることを特徴とする電気機器の騒音測定装置。
An electrical equipment noise measurement device that measures electrical equipment noise using sound collection means,
A bar-like support extending in the horizontal direction, to which the sound collecting means is attached;
A fixing portion that is fixed to the support and is movable in a vertical direction;
A horizontally movable carriage in which the fixed portion is installed;
Trace means for tracing a measurement position pattern for specifying a noise measurement position of the electric device described in a measurement position pattern diagram provided in the vicinity of the carriage, installed on the carriage,
A noise measuring device for electrical equipment, comprising:
前記トレース手段は、前記固定部に設けられた、レーザー光を射出するレーザーポイン
タであり、前記測定位置パターン図は前記測定位置パターンが記載された台紙であること
を特徴とする請求項3に記載の電気機器の騒音測定装置。
The said trace means is a laser pointer which inject | emitted the said fixing | fixed part and inject | emits a laser beam, The said measurement position pattern figure is the mount on which the said measurement position pattern was described. Noise measuring device for electrical equipment.
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