JP2014052242A - Wave receiving array apparatus - Google Patents
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- JP2014052242A JP2014052242A JP2012196033A JP2012196033A JP2014052242A JP 2014052242 A JP2014052242 A JP 2014052242A JP 2012196033 A JP2012196033 A JP 2012196033A JP 2012196033 A JP2012196033 A JP 2012196033A JP 2014052242 A JP2014052242 A JP 2014052242A
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Abstract
Description
本発明は、音源の位置を探査する受波アレイ装置に関し、特に、受波素子の位置を変更可能な受波アレイ装置に関する。 The present invention relates to a wave receiving array apparatus that searches for the position of a sound source, and more particularly to a wave receiving array apparatus that can change the position of a wave receiving element.
移動体（自動車、船舶、生物等）、機械、プラント等が発生する音（騒音を含む）の音源の位置を探査する場合、音源からの音の到来方向を正確に把握するために、指向性を有する受波アレイ装置が使用される。受波アレイ装置は、音波を受信する複数の受波素子を規則的に配列した装置であり、指向性を有するものの、この指向性の幅には周波数特性があり、探査対象の音の周波数に応じて受波素子を適切な間隔に変更しなければならない。そこで、この受波素子を任意に変更可能に構成した受波アレイ装置が既に提案されている（例えば、特許文献１参照）。 When exploring the location of sound sources (including noise) generated by moving objects (cars, ships, creatures, etc.), machines, plants, etc., directivity is required to accurately determine the direction of sound arrival from the sound sources. A receiving array device having the following is used. A receiving array device is a device in which a plurality of receiving elements that receive sound waves are regularly arranged and has directivity, but the width of this directivity has frequency characteristics, and the frequency of the sound to be searched is determined. Accordingly, the receiving element must be changed to an appropriate interval. In view of this, a wave receiving array device in which the wave receiving element can be arbitrarily changed has already been proposed (for example, see Patent Document 1).
特許文献１に記載された受波アレイ装置は、一列に配列された複数の受波素子と、該受波素子の配列間隔を変更可能に構成したアレイ本体と、計測対象となる音波の周波数に応じて前記アレイ本体の受波素子の配列間隔を変化させるアレイ制御器と、有し、前記アレイ本体は、前記受波素子を支持する弾性体ベルトと、該弾性体ベルトを伸縮させる伸縮可動機構と、を有している。 The receiving array apparatus described in Patent Document 1 includes a plurality of receiving elements arranged in a line, an array body configured to be able to change the arrangement interval of the receiving elements, and the frequency of sound waves to be measured. And an array controller that changes the arrangement interval of the wave receiving elements of the array body, and the array body includes an elastic belt that supports the wave receiving elements, and a telescopic movable mechanism that expands and contracts the elastic belt. And have.
上述した特許文献１に記載された受波アレイ装置では、受波素子の配列間隔を変更するために弾性体ベルトを使用しており、この弾性体ベルトの伸縮性を利用して、受波素子を等間隔に維持したまま配列間隔を変更できるようにしている。しかしながら、弾性体ベルトは、繰り返し伸縮させることによって疲労を生じやすく、熱や紫外線の影響を受けて劣化しやすいことから、耐久性の面で改良の余地があった。また、疲労や劣化により、弾性体ベルトの伸縮量が経時的に変化することから、受波素子の位置決め精度の面でも改良の余地があった。 In the wave receiving array device described in Patent Document 1 described above, an elastic belt is used to change the arrangement interval of the wave receiving elements, and the wave receiving element is utilized by utilizing the stretchability of the elastic belt. The arrangement interval can be changed while maintaining the same interval. However, the elastic belt is likely to be fatigued by repeatedly expanding and contracting, and easily deteriorates due to the influence of heat and ultraviolet rays, so there is room for improvement in terms of durability. Further, since the amount of expansion and contraction of the elastic belt changes with time due to fatigue and deterioration, there is room for improvement in terms of positioning accuracy of the receiving element.
本発明は、上述した問題点に鑑み創案されたものであり、受波素子の配列間隔を等間隔に維持したまま容易に変更することができるとともに、疲労や劣化に強く、位置決め精度が高い、受波アレイ装置を提供することを目的とする。 The present invention was devised in view of the above-mentioned problems, and can be easily changed while maintaining the arrangement interval of the receiving elements at an equal interval, is resistant to fatigue and deterioration, and has high positioning accuracy. An object of the present invention is to provide a receiving array device.
本発明によれば、規則的に配列された複数の受波素子を有する受波アレイ装置において、不等間隔のネジ溝を有する駆動軸と、該駆動軸を回転させる駆動手段と、前記受波素子を支持するとともに前記駆動軸の軸方向に移動可能に配置される受波素子支持体と、前記駆動軸から離隔した位置に配置されるとともに前記受波素子支持体の移動をガイドするレールと、を有し、前記駆動軸を回転させて前記受波素子支持体を移動させることにより、前記受波素子を等間隔に維持しながら配列間隔を変更できるように構成した、ことを特徴とする受波アレイ装置が提供される。 According to the present invention, in a wave receiving array apparatus having a plurality of wave receiving elements arranged regularly, a drive shaft having unevenly spaced screw grooves, drive means for rotating the drive shaft, and the wave receiving A wave receiving element support that supports the element and is movable in the axial direction of the drive shaft; and a rail that is disposed at a position spaced from the drive shaft and guides the movement of the wave receiving element support. And the arrangement interval can be changed while maintaining the receiving elements at equal intervals by rotating the drive shaft to move the receiving element support. A receive array apparatus is provided.
前記ネジ溝は、両端側の間隔が広く中央側に向かって間隔が徐々に狭くなるように形成されていてもよいし、一端側の間隔が広く他端側に向かって間隔が徐々に狭くなるように形成されていてもよい。 The screw groove may be formed such that the distance between both ends is wide and the distance gradually decreases toward the center, or the distance between one end is wide and the distance gradually decreases toward the other end. It may be formed as follows.
また、前記受波素子支持体は、前記駆動軸に移動可能に嵌め込まれる従動体と、前記レールに支持される台座と、前記従動体と前記台座とを繋ぐ連結部と、前記台座と前記受波素子とを繋ぐ支持部と、を有していてもよい。 The wave receiving element support includes a follower that is movably fitted to the drive shaft, a pedestal supported by the rail, a connecting portion that connects the follower and the pedestal, the pedestal, and the receiver. And a support portion that connects the wave element.
また、受波アレイ装置は、装置全体を覆うカバー体を有し、該カバー体の内部に液体が充填されていてもよい。 The receiving array device may have a cover body that covers the entire device, and the inside of the cover body may be filled with a liquid.
また、本発明によれば、規則的に配列された複数の受波素子を有する受波アレイ装置において、不等間隔のネジ溝を有する第一駆動軸と、該第一駆動軸を回転させる第一駆動手段と、前記受波素子を支持するとともに前記第一駆動軸の軸方向に移動可能に配置される受波素子支持体と、前記第一駆動軸から離隔した位置に配置されるとともに前記受波素子支持体の移動をガイドする第一レールと、を有する複数の受波素子アレイ体と、前記第一駆動軸と直交する方向に配置されるとともに不等間隔のネジ溝を有する第二駆動軸と、該第二駆動軸を回転させる第二駆動手段と、前記受波素子アレイ体を支持するとともに前記第二駆動軸の軸方向に移動可能に配置される受波素子アレイ体支持手段と、前記第二駆動軸から離隔した位置に配置されるとともに前記受波素子アレイ体支持手段の移動をガイドする第二レールと、を有し、前記複数の受波素子アレイ体の一端に沿って配置される受波素子アレイ体駆動手段と、前記第二駆動軸と平行に配置された脚部と、該脚部に配置されるとともに前記受波素子アレイ体の移動をガイドする第三レールと、を有し、前記複数の受波素子アレイ体の他端に沿って配置される受波素子アレイ体ガイド手段と、を有し、前記第一駆動軸を回転させて前記受波素子支持体を移動させるとともに、前記第二駆動軸を回転させて前記受波素子アレイ体を移動させることにより、前記受波素子を等間隔に維持しながら配列間隔を変更できるように構成した、ことを特徴とする受波アレイ装置。 According to the present invention, in the wave receiving array apparatus having a plurality of wave receiving elements regularly arranged, the first drive shaft having unequally spaced screw grooves, and the first drive shaft rotating the first drive shaft. One driving means, a wave receiving element support that supports the wave receiving element and is movable in the axial direction of the first drive shaft, and is disposed at a position spaced from the first drive shaft and A first rail for guiding the movement of the receiving element support; a second receiving element array having a plurality of receiving element arrays; and a second groove having unequally spaced screw grooves arranged in a direction orthogonal to the first drive shaft A drive shaft, second drive means for rotating the second drive shaft, and a wave receiving element array support means arranged to support the wave receiving element array body and to be movable in the axial direction of the second drive shaft. And disposed at a position spaced apart from the second drive shaft. And a second rail for guiding the movement of the receiving element array body supporting means, and the receiving element array body driving means arranged along one end of the plurality of receiving element array bodies, A leg portion disposed in parallel with the two drive shafts, and a third rail disposed on the leg portion for guiding the movement of the wave receiving element array body, and the plurality of wave receiving element array bodies. Receiving element array body guide means arranged along the other end, rotating the first driving shaft to move the receiving element support, and rotating the second driving shaft A wave receiving array apparatus, wherein the wave receiving element array body is moved so that the arrangement interval can be changed while maintaining the wave receiving elements at equal intervals.
上述した本発明の受波アレイ装置によれば、不等間隔のネジ溝を有する駆動軸を回転させて、受波素子を支持する受波素子支持体を移動させるようにしたことから、ネジ溝の形状及び受波素子支持体の配置を適宜調整することにより、受波素子の配列間隔を等間隔に維持したまま容易に変更することができる。また、受波素子の駆動装置をネジ溝を有する駆動軸で構成したことにより、疲労や劣化に対する強度及び位置決め精度を向上させることができる。 According to the wave receiving array apparatus of the present invention described above, the drive shaft having the unevenly spaced screw grooves is rotated to move the wave receiving element support that supports the wave receiving elements. By appropriately adjusting the shape and the arrangement of the wave receiving element support, the arrangement interval of the wave receiving elements can be easily changed while maintaining an equal interval. In addition, since the drive device for the wave receiving element is configured with a drive shaft having a screw groove, it is possible to improve strength and positioning accuracy against fatigue and deterioration.
以下、本発明の実施形態について図１〜図６を用いて説明する。ここで、図１は、本発明の第一実施形態に係る受波アレイ装置を示す図であり、（ａ）は全体構成図、（ｂ）は受波素子支持体の拡大図、を示している。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. Here, FIG. 1 is a diagram showing the receiving array device according to the first embodiment of the present invention, where (a) is an overall configuration diagram, and (b) is an enlarged view of a receiving element support. Yes.
本発明の第一実施形態に係る受波アレイ装置１は、図１（ａ）に示すように、一列に配列された複数の受波素子２を有し、不等間隔のネジ溝３１を有する駆動軸３と、駆動軸３を回転させる駆動手段４と、受波素子２を支持するとともに駆動軸３の軸方向に移動可能に配置される受波素子支持体５と、駆動軸３から離隔した位置に配置されるとともに受波素子支持体５の移動をガイドするレール６と、を有し、駆動軸３を回転させて受波素子支持体５を移動させることにより、受波素子２を等間隔に維持しながら配列間隔を変更できるように構成したものである。 As shown in FIG. 1A, the receiving array device 1 according to the first embodiment of the present invention has a plurality of receiving elements 2 arranged in a row and has screw grooves 31 with unequal intervals. The drive shaft 3, the drive means 4 that rotates the drive shaft 3, the wave receiving element 2 that supports the wave receiving element 2 and is movable in the axial direction of the drive shaft 3, and the drive shaft 3. And a rail 6 that guides the movement of the wave receiving element support 5, and rotates the drive shaft 3 to move the wave receiving element support 5, thereby moving the wave receiving element 2. The arrangement interval can be changed while maintaining an equal interval.
受波素子２は、音波を受信可能なマイク又は集音器である。複数の受波素子２を等間隔に配列したアレイ構造とすることにより、受波素子２の配列間隔に対して十分離れた位置に存在する音源より入射する音波の方向が、受波素子２の配列方向に直交する方向と一致している場合には、ある時刻に音源より発せられた音波は、各受波素子２において同時に同位相で受信される。 The wave receiving element 2 is a microphone or a sound collector that can receive sound waves. By adopting an array structure in which a plurality of wave receiving elements 2 are arranged at equal intervals, the direction of the sound wave incident from the sound source existing sufficiently away from the arrangement interval of the wave receiving elements 2 is When the direction coincides with the direction orthogonal to the arrangement direction, sound waves emitted from the sound source at a certain time are simultaneously received by the receiving elements 2 in the same phase.
一方、音源より入射する音波の方向が、受波素子２の配列方向に直交する方向とずれている場合には、ある時刻に音源より発せられた音波が、各受波素子２で受信される時刻に時間差を生じ、受信される音波に位相差が生じることとなる。したがって、受波素子２の受信信号を重ね合わせることにより、音波の検出に関して指向性を持たせることができる。 On the other hand, when the direction of the sound wave incident from the sound source is deviated from the direction orthogonal to the arrangement direction of the wave receiving elements 2, the sound wave emitted from the sound source at a certain time is received by each wave receiving element 2. A time difference is generated in the time, and a phase difference is generated in the received sound wave. Therefore, by superimposing the reception signals of the wave receiving element 2, directivity can be given for the detection of sound waves.
受波素子２は、受波素子支持体５により駆動軸３の軸方向に移動可能に支持されている。受波素子支持体５は、図１（ａ）及び（ｂ）に示したように、駆動軸３に移動可能に嵌め込まれる従動体５１と、レール６に支持される台座５２と、従動体５１と台座５２とを繋ぐ連結部５３と、台座５２と受波素子２とを繋ぐ支持部５４と、を有している。 The wave receiving element 2 is supported by a wave receiving element support 5 so as to be movable in the axial direction of the drive shaft 3. As shown in FIGS. 1A and 1B, the wave receiving element support 5 includes a follower 51 that is movably fitted to the drive shaft 3, a pedestal 52 that is supported by the rail 6, and a follower 51. And a support portion 54 that connects the base 52 and the wave receiving element 2.
従動体５１は、駆動軸３の外周に嵌め込まれるリング状の部品であり、内周面にネジ溝３１に拘束される突起部５５を有している。台座５２は、レール６上を走行可能に構成されており、例えば、車輪５６を有している。なお、台座５２は、レール６に沿って移動することができる構成であれば、図示した構成に限定されるものではなく、例えば、車輪５６を省略した滑動体により構成してもよいし、車輪５６の個数や配置箇所を変更するようにしてもよい。 The follower 51 is a ring-shaped component that is fitted to the outer periphery of the drive shaft 3, and has a protrusion 55 that is restrained by the screw groove 31 on the inner peripheral surface. The pedestal 52 is configured to be able to travel on the rail 6 and has, for example, wheels 56. Note that the pedestal 52 is not limited to the illustrated configuration as long as it can move along the rail 6. For example, the pedestal 52 may be configured by a sliding body in which the wheels 56 are omitted. The number and arrangement location of 56 may be changed.
また、台座５２は、連結部５３を介して従動体５１に接続されており、従動体５１の水平移動に伴って、レール６に沿って水平移動する。さらに、台座５２には、支持部５４を介して受波素子２が接続されていることから、台座５２の水平移動に伴って、受波素子２も水平移動することとなる。 Further, the pedestal 52 is connected to the driven body 51 via the connecting portion 53, and moves horizontally along the rail 6 as the driven body 51 moves horizontally. Further, since the wave receiving element 2 is connected to the pedestal 52 via the support portion 54, the wave receiving element 2 also moves horizontally as the pedestal 52 moves horizontally.
なお、受波素子支持体５の構成は、駆動軸３の回転に伴って受波素子２を軸方向に移動可能な構成であればよく、図示した構成に限定されるものではない。例えば、従動体５１は矩形の環状体であってもよいし、従動体５１はネジ溝３１に係合される複数のボールを備えたボールネジ構造であってもよいし、連結部５３を省略して従動体５１と台座５２とを直に接続するようにしてもよい。 The configuration of the wave receiving element support 5 is not limited to the illustrated configuration as long as the wave receiving element 2 can be moved in the axial direction as the drive shaft 3 rotates. For example, the driven body 51 may be a rectangular annular body, the driven body 51 may have a ball screw structure including a plurality of balls engaged with the screw grooves 31, and the connecting portion 53 is omitted. Thus, the driven body 51 and the pedestal 52 may be directly connected.
駆動軸３は、周面にネジ溝３１が形成された金属製の軸部材である。駆動軸３は、カップリング等によって駆動手段４と動力伝達可能に接続されている。ネジ溝３１は、不等間隔に形成されており、例えば、両端側の間隔が広く中央側に向かって間隔が徐々に狭くなるように形成されている。このとき、一端側から中央側に向かう第一ネジ溝３１ａと、他端側から中央側に向かう第二ネジ溝３１ｂとは、互いに反対向きの螺旋形状となるように形成される。 The drive shaft 3 is a metal shaft member having a thread groove 31 formed on the peripheral surface. The drive shaft 3 is connected to the drive means 4 by a coupling or the like so that power can be transmitted. The screw grooves 31 are formed at unequal intervals. For example, the screw grooves 31 are formed such that the intervals at both ends are wide and the intervals gradually decrease toward the center. At this time, the first screw groove 31a from the one end side toward the center side and the second screw groove 31b from the other end side toward the center side are formed to have spiral shapes opposite to each other.
ネジ溝３１の不等間隔は、駆動軸３の径の太さ、受波素子２の配列間隔の最小値及び最大値等の条件から任意に設定される。また、ネジ溝３１の不等間隔は、駆動軸３の回転数によって、受波素子２の配列間隔を均等に保持したまま、配列間隔を広くしたり狭くしたりすることができるように形成される。 The unequal intervals of the screw grooves 31 are arbitrarily set based on conditions such as the diameter of the drive shaft 3 and the minimum and maximum values of the arrangement interval of the wave receiving elements 2. Further, the unequal intervals of the screw grooves 31 are formed so that the arrangement interval can be increased or decreased depending on the number of rotations of the drive shaft 3 while the arrangement interval of the wave receiving elements 2 is maintained uniformly. The
駆動手段４は、駆動軸３を回転させる部品であり、例えば、電動モータにより構成される。かかる駆動手段４は、例えば、制御手段７に接続されており、制御手段７の指令に基づいて駆動軸３を回転させる。また、制御手段７は、受波素子２の受波信号を受信できるように受波素子２と接続されており、受信した音波の周波数分析を行い、音源の発している音波の周波数を特定する。そして、制御手段７は、特定した周波数に応じて受波素子２の配列間隔を変更するために駆動手段４に指令を送信する。 The drive unit 4 is a component that rotates the drive shaft 3 and is configured by, for example, an electric motor. For example, the drive unit 4 is connected to the control unit 7 and rotates the drive shaft 3 based on a command from the control unit 7. Further, the control means 7 is connected to the wave receiving element 2 so as to be able to receive the received signal of the wave receiving element 2, performs frequency analysis of the received sound wave, and specifies the frequency of the sound wave emitted by the sound source. . Then, the control unit 7 transmits a command to the driving unit 4 in order to change the arrangement interval of the wave receiving elements 2 according to the specified frequency.
なお、駆動手段４として電動モータを使用した場合について説明したが、駆動手段４は駆動軸３を回転可能な構成であればよく、例えば、駆動軸３に連結されたハンドルを手動で回転させるようにしてもよい。 Although the case where an electric motor is used as the drive means 4 has been described, the drive means 4 may be configured so that the drive shaft 3 can rotate. For example, the handle connected to the drive shaft 3 is manually rotated. It may be.
駆動軸３及び駆動手段４は、受波アレイ装置１の底部１１を構成する平板上に立設された脚部１２に支持されている。脚部１２は、駆動軸３の端部を回転可能に支持する第一脚部１２ａと、駆動手段４を支持する第二脚部１２ｂと、を有している。 The drive shaft 3 and the drive means 4 are supported by leg portions 12 erected on a flat plate constituting the bottom portion 11 of the receiving array device 1. The leg portion 12 includes a first leg portion 12 a that rotatably supports the end portion of the drive shaft 3, and a second leg portion 12 b that supports the driving means 4.
レール６は、図１（ｂ）に示したように、受波素子支持体５の両側に配置された一対のレール６により構成される。また、図１（ａ）に示したように、レール６は、第一脚部１２ａ及び第二脚部１２ｂに掛け渡されることによって支持される。なお、レール６の構成は図示した構成に限定されるものではなく、受波素子支持体５の水平移動を案内できる構成であれば他の構成であってもよい。 The rail 6 is comprised by a pair of rail 6 arrange | positioned at the both sides of the receiving element support body 5, as shown in FIG.1 (b). Moreover, as shown to Fig.1 (a), the rail 6 is supported by being spanned over the 1st leg part 12a and the 2nd leg part 12b. In addition, the structure of the rail 6 is not limited to the structure shown in figure, The other structure may be sufficient if it is a structure which can guide the horizontal movement of the receiving element support body 5. FIG.
次に、上述した受波アレイ装置１の作用について説明する。ここで、図２は、低周波の音源を探査する場合を示す概念図であり、図３は、高周波の音源を探査する場合を示す概念図である。なお、各図において、低周波の音波を実線で表示し、高周波の音波を破線で表示している。 Next, the operation of the above-described receiving array device 1 will be described. Here, FIG. 2 is a conceptual diagram showing a case of searching for a low-frequency sound source, and FIG. 3 is a conceptual diagram showing a case of searching for a high-frequency sound source. In each figure, low-frequency sound waves are indicated by solid lines, and high-frequency sound waves are indicated by broken lines.
最初に、音源探査をしたい場所に受波アレイ装置１を配置する。このとき、受波素子２の配列間隔は、任意の広さであってもよいが、予め音源の発する音波が低周波であるか高周波であるか把握できている場合には、低周波の場合は受波素子２の配列間隔を広めに設定し、高周波の場合は受波素子２の配列間隔を狭めに設定しておいてもよい。 First, the receiving array device 1 is arranged at a place where a sound source search is desired. At this time, the arrangement interval of the wave receiving elements 2 may be an arbitrary width. However, when it is possible to grasp in advance whether the sound wave emitted by the sound source has a low frequency or a high frequency, May set the array interval of the wave receiving elements 2 wider, and in the case of high frequency, the array interval of the wave receiving elements 2 may be set narrower.
音源探査を開始すると、受波素子２は音源の発する音波を受信し、制御手段７に受信信号を送信する。制御手段７は、受信した音波の周波数分析を行い、受信した音波の周波数を特定する。制御手段７は、周波数と受波素子２の配列間隔との関係及び駆動軸３の回転数と受波素子支持体５の移動量との関係を予めデータベースに記憶しており、特定した周波数に適切な配列間隔となるように、駆動軸３を回転させて受波素子２を移動させる。 When the sound source search is started, the wave receiving element 2 receives a sound wave emitted by the sound source and transmits a reception signal to the control means 7. The control means 7 performs frequency analysis of the received sound wave and specifies the frequency of the received sound wave. The control means 7 stores the relationship between the frequency and the arrangement interval of the wave receiving elements 2 and the relationship between the number of rotations of the drive shaft 3 and the amount of movement of the wave receiving element support 5 in a database in advance. The receiving element 2 is moved by rotating the drive shaft 3 so as to obtain an appropriate arrangement interval.
このとき、受波素子２（受波素子支持体５）の駆動軸３上における位置を把握可能な位置検出器（図示せず）を駆動軸３やレール６に配置しておくことにより、現在位置と選択された配置間隔を構成するための位置との差分を容易に算出することができる。したがって、制御手段７は、その差分に応じた分だけ駆動軸３を回転させるように駆動手段４に指令を送信する。 At this time, a position detector (not shown) capable of grasping the position of the wave receiving element 2 (the wave receiving element support 5) on the drive shaft 3 is arranged on the drive shaft 3 and the rail 6 to thereby The difference between the position and the position for constituting the selected arrangement interval can be easily calculated. Therefore, the control means 7 transmits a command to the drive means 4 so as to rotate the drive shaft 3 by an amount corresponding to the difference.
なお、この差分は、受波素子２（受波素子支持体５）の初期位置を制御手段７に記憶しておき、受波素子２（受波素子支持体５）の移動量又は駆動軸３の回転数の履歴を記憶しておき、受波素子２（受波素子支持体５）の移動履歴を参照して算出するようにしてもよい。また、受波素子２（受波素子支持体５）を移動させる場合には、必ず原点位置（例えば、中央部、両端部、中央部と両端部との中間地点等）に移動させてから必要量だけ移動させるようにしてもよい。 The difference is that the initial position of the wave receiving element 2 (the wave receiving element support 5) is stored in the control means 7, and the movement amount of the wave receiving element 2 (the wave receiving element support 5) or the drive shaft 3 is stored. It is also possible to store the history of the rotational speeds of these and calculate them with reference to the movement history of the receiving element 2 (receiving element support 5). In addition, when the wave receiving element 2 (the wave receiving element support 5) is moved, it is necessary to move it to the origin position (for example, the center portion, both end portions, the midpoint between the center portion and both end portions, etc.). You may make it move only quantity.
受波素子２が受信した音波が低周波だった場合、図２に示したように、駆動手段４を作動させて駆動軸３を回転し、受波素子支持体５を中央側から両端側に移動させ、受波素子２の配列間隔Δｄ１を広く設定する。受波素子２の配列間隔Δｄ１を広く設定すると、低周波の音波については音源探査に適した指向幅Ｗ１を有するように受信することができるものの、高周波の音波についてはサイドローブ（折り返し歪み）が発生してしまう。したがって、音源が低周波の音波を発している場合には、受波素子２の配列間隔Δｄ１を広く設定することが好ましい。 When the sound wave received by the wave receiving element 2 has a low frequency, as shown in FIG. 2, the driving means 4 is operated to rotate the drive shaft 3, and the wave receiving element support 5 is moved from the center side to both end sides. The arrangement interval Δd1 of the wave receiving elements 2 is set wide. If the arrangement interval Δd1 of the wave receiving elements 2 is set wide, low-frequency sound waves can be received with a directivity width W1 suitable for sound source search, but side lobes (folding distortion) are present for high-frequency sound waves. Will occur. Therefore, when the sound source emits low-frequency sound waves, it is preferable to set the arrangement interval Δd1 of the wave receiving elements 2 wide.
受波素子２が受信した音波が高周波だった場合、図３に示したように、駆動手段４を作動させて駆動軸３を回転し、受波素子支持体５を両端側から中央側に移動させ、受波素子２の配列間隔Δｄ２を狭く設定する。受波素子２の配列間隔Δｄ２を狭く設定すると、高周波の音波については音源探査に適した指向幅Ｗ２を有するように受信することができるものの、低周波の音波については指向幅Ｗ１が広くなってしまい、分解能が低下してしまう。したがって、音源が高周波の音波を発している場合には、受波素子２の配列間隔Δｄ２を狭く設定することが好ましい。 When the sound wave received by the wave receiving element 2 is a high frequency, as shown in FIG. 3, the driving means 4 is operated to rotate the drive shaft 3, and the wave receiving element support 5 is moved from both ends to the center side. Then, the arrangement interval Δd2 of the wave receiving elements 2 is set to be narrow. If the arrangement interval Δd2 of the receiving elements 2 is set to be narrow, although high-frequency sound waves can be received with a directivity width W2 suitable for sound source search, the directivity width W1 becomes wide for low-frequency sound waves. As a result, the resolution decreases. Therefore, when the sound source emits high-frequency sound waves, it is preferable to set the arrangement interval Δd2 of the receiving elements 2 to be narrow.
また、上述したように駆動軸３に形成されたネジ溝３１は、不等間隔に形成されており、駆動軸３上に均等な間隔で配置された従動体５１（受波素子支持体５）を、等間隔を維持しながら、配列間隔を広くしたり狭くしたりすることができる。 Further, as described above, the screw grooves 31 formed in the drive shaft 3 are formed at unequal intervals, and the followers 51 (wave receiving element support 5) arranged at equal intervals on the drive shaft 3. Can be widened or narrowed while maintaining equal intervals.
したがって、上述した本実施形態の受波アレイ装置１によれば、不等間隔のネジ溝３１を有する駆動軸３を回転させて、受波素子２を支持する受波素子支持体５を移動させるようにしたことから、ネジ溝３１の形状及び受波素子支持体５の配置を適宜調整することにより、受波素子２の配列間隔を等間隔に維持したまま容易に変更することができる。 Therefore, according to the wave receiving array device 1 of the present embodiment described above, the wave receiving element support 5 that supports the wave receiving element 2 is moved by rotating the drive shaft 3 having the screw grooves 31 with unequal spacing. Thus, by appropriately adjusting the shape of the screw groove 31 and the arrangement of the wave receiving element support 5, it is possible to easily change the arrangement interval of the wave receiving elements 2 while maintaining an equal interval.
また、受波素子２の駆動装置を、ネジ溝３１を有する金属製の駆動軸３で構成したことにより、疲労や劣化に対する強度及び位置決め精度を向上させることができる。 Further, since the drive device of the wave receiving element 2 is configured by the metal drive shaft 3 having the thread groove 31, the strength against fatigue and deterioration and the positioning accuracy can be improved.
なお、受波素子２の配列間隔は、例えば、音波の波長の半分の値に設定される。ここで、音波の伝播速度をｖ、音波の周波数をｆ、音波の波長をλとすれば、ｖ＝ｆλの式より、周波数ｆが把握できれば、容易に波長λを把握することができ、受波素子２の配列間隔を求めることができる。 In addition, the arrangement | positioning space | interval of the wave receiving element 2 is set to the half value of the wavelength of a sound wave, for example. Here, if the propagation speed of the sound wave is v, the frequency of the sound wave is f, and the wavelength of the sound wave is λ, the wavelength λ can be easily grasped if the frequency f can be grasped from the equation v = fλ. The arrangement interval of the wave elements 2 can be obtained.
次に、本発明の他の実施形態に係る受波アレイ装置１について、図４を参照しつつ説明する。ここで、図４は、本発明の他の実施形態に係る受波アレイ装置を示す図であり、（ａ）は第二実施形態、（ｂ）は第三実施形態、を示している。なお、上述した第一実施形態に係る受波アレイ装置１と同じ構成部品については、同じ符号を付して重複した説明を省略する。 Next, a receiving array device 1 according to another embodiment of the present invention will be described with reference to FIG. Here, FIG. 4 is a figure which shows the receiving array apparatus based on other embodiment of this invention, (a) has shown 2nd embodiment, (b) has shown 3rd embodiment. In addition, about the same component as the receiving array apparatus 1 which concerns on 1st embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.
図４（ａ）に示した第二実施形態は、上述した受波アレイ装置１を水中で使用できるようにしたものである。具体的には、第二実施形態に係る受波アレイ装置１は、装置全体を覆うカバー体１３を有し、カバー体１３の内部に液体１４が充填されている。 In the second embodiment shown in FIG. 4A, the above-described receiving array device 1 can be used in water. Specifically, the receiving array device 1 according to the second embodiment includes a cover body 13 that covers the entire apparatus, and the inside of the cover body 13 is filled with a liquid 14.
カバー体１３は、音波を透過することができるとともに不透水性を有する素材（例えば、ゴム等）により構成される。カバー体１３は、受波アレイ装置１の全体を被覆可能な略箱型形状を有しており、開口部が底部１１に止水可能に接続されている。液体１４は、例えば、潤滑油等の油（充填油）である。かかる構成によれば、受波アレイ装置１を防水することができ、水中で使用することもできる。なお、かかる第二実施形態に係る受波アレイ装置１では、受波素子２として、ハイドロフォンやトランスデューサ等、液中で使用できるものが選択される。 The cover body 13 is made of a material (for example, rubber or the like) that can transmit sound waves and has water impermeability. The cover body 13 has a substantially box shape capable of covering the entire wave receiving array device 1, and the opening is connected to the bottom 11 so that water can be stopped. The liquid 14 is oil (filling oil) such as lubricating oil, for example. According to this configuration, the wave receiving array device 1 can be waterproofed and can be used underwater. In the wave receiving array device 1 according to the second embodiment, a wave receiving element 2 that can be used in a liquid, such as a hydrophone or a transducer, is selected.
図４（ｂ）に示した第三実施形態は、駆動軸３のネジ溝３１を、一端側の間隔が広く他端側に向かって間隔が徐々に狭くなるように形成したものである。ここでは、ネジ溝３１の間隔は、駆動手段４側が狭く、先端側に向かって徐々に広くなるように形成されている。したがって、駆動手段４側の受波素子支持体５の移動量を小さくし、先端側の受波素子支持体５の移動量を大きくすることができ、駆動手段４側を基準にして受波素子２の配列間隔を均等に保持したまま、配列間隔を広くしたり狭くしたりすることができる。 In the third embodiment shown in FIG. 4B, the thread groove 31 of the drive shaft 3 is formed so that the gap on one end side is wide and the gap is gradually narrowed toward the other end side. Here, the interval between the screw grooves 31 is formed to be narrow on the driving means 4 side and gradually widen toward the tip side. Therefore, the amount of movement of the wave receiving element support 5 on the driving means 4 side can be reduced, and the amount of movement of the wave receiving element support 5 on the distal end side can be increased. It is possible to widen or narrow the arrangement interval while keeping the arrangement interval of 2 equal.
なお、ネジ溝３１の間隔は、駆動手段４側が広く、先端側に向かって徐々に狭くなるように形成されていてもよい。また、両端に配置された受波素子支持体５のいずれか一方は、駆動軸３が回転した場合であっても水平移動しないように構成して、受波素子支持体５の移動位置の基準体として使用するようにしてもよい。 In addition, the space | interval of the screw groove 31 may be formed so that the drive means 4 side may be wide and it may become narrow gradually toward the front end side. Further, any one of the wave receiving element supports 5 arranged at both ends is configured not to move horizontally even when the drive shaft 3 rotates, and a reference for the moving position of the wave receiving element support 5 is provided. It may be used as a body.
かかる第三実施形態に係る受波アレイ装置１では、受波素子２の配列間隔を変更することによって、複数の受波素子２の中心位置がずれることとなる。この場合、制御手段７により、受信した音波のデータを複数の受波素子２の中心位置（基準位置からのずれ量）に基づいて補正するようにしてもよい。 In the receiving array device 1 according to the third embodiment, the center positions of the plurality of receiving elements 2 are shifted by changing the arrangement interval of the receiving elements 2. In this case, the control unit 7 may correct the received sound wave data based on the center positions of the plurality of wave receiving elements 2 (deviation amounts from the reference position).
なお、上述した第一実施形態〜第三実施形態において、底部１１を下にして、下から順に、駆動軸３、レール６及び受波素子２が配置されている場合を図示しているが、駆動軸３、レール６及び受波素子２を水平方向に並ぶように配置してもよいし、駆動軸３、レール６及び受波素子２の位置を上下反転させて配置するようにしてもよい。 In the first embodiment to the third embodiment described above, the case where the drive shaft 3, the rail 6, and the wave receiving element 2 are arranged in order from the bottom with the bottom 11 facing down is illustrated. The drive shaft 3, the rail 6 and the wave receiving element 2 may be arranged so as to be arranged in the horizontal direction, or the drive shaft 3, the rail 6 and the wave receiving element 2 may be arranged upside down. .
次に、本発明の第四実施形態に係る受波アレイ装置について、図５及び図６を参照しつつ説明する。ここで、図５は、本発明の第四実施形態に係る受波アレイ装置を示す平面図である。図６は、図５に示した受波アレイ装置を示す側面図であり、（ａ）はＡ矢視側面図、（ｂ）はＢ矢視側面図、を示している。なお、上述した第一実施形態に係る受波アレイ装置１と同じ構成部品については、同じ符号を付して重複した説明を省略する。なお、各図において制御手段７の図は省略してある。 Next, a wave receiving array apparatus according to a fourth embodiment of the present invention will be described with reference to FIGS. Here, FIG. 5 is a plan view showing a receiving array device according to the fourth embodiment of the present invention. 6A and 6B are side views showing the receiving array device shown in FIG. 5, wherein FIG. 6A is a side view as viewed from the arrow A, and FIG. 6B is a side view as viewed from the arrow B. In addition, about the same component as the receiving array apparatus 1 which concerns on 1st embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. In addition, the figure of the control means 7 is abbreviate | omitted in each figure.
図５及び図６に示した第四実施形態に係る受波アレイ装置１０は、複数の受波素子２を二次元的に規則的に配列し、Ｘ方向及びＹ方向に移動できるようにしたものである。上述した第一実施形態〜第三実施形態に係る受波アレイ装置１は、複数の受波素子２を一列に、すなわち、一次元的に配列したものである。受波素子２を一次元的に配列した受波アレイ装置１では、音源より入射する音波は面（一つの角度）で把握されるのに対し、受波素子２を二次元的に配列した受波アレイ装置１０では、音源より入射する音波は線（二つの角度）で把握されることとなり、音源探査の精度を向上させることができる。 The receiving array device 10 according to the fourth embodiment shown in FIGS. 5 and 6 is configured such that a plurality of receiving elements 2 are regularly arranged two-dimensionally and can be moved in the X direction and the Y direction. It is. The wave receiving array device 1 according to the first to third embodiments described above has a plurality of wave receiving elements 2 arranged in a line, that is, one-dimensionally. In the receiving array device 1 in which the receiving elements 2 are arranged one-dimensionally, sound waves incident from the sound source are grasped by a plane (one angle), whereas the receiving elements 2 are arranged two-dimensionally. In the wave array device 10, the sound wave incident from the sound source is grasped by a line (two angles), and the accuracy of the sound source search can be improved.
図５及び図６に示した第四実施形態に係る受波アレイ装置１０は、規則的に配列された複数の受波素子２を有する受波アレイ装置１０であって、不等間隔のネジ溝３１を有する第一駆動軸３ａと、第一駆動軸３ａを回転させる第一駆動手段４１と、受波素子２を支持するとともに第一駆動軸３ａの軸方向に移動可能に配置される受波素子支持体５と、第一駆動軸３ａから離隔した位置に配置されるとともに受波素子支持体５の移動をガイドする第一レール６１と、を有する複数の受波素子アレイ体２０と、第一駆動軸３ａと直交する方向に配置されるとともに不等間隔のネジ溝３１を有する第二駆動軸３ｂと、第二駆動軸３ｂを回転させる第二駆動手段４２と、受波素子アレイ体２０を支持するとともに第二駆動軸３ｂの軸方向に移動可能に配置される受波素子アレイ体支持手段８１と、第二駆動軸３ｂから離隔した位置に配置されるとともに受波素子アレイ体支持手段８１の移動をガイドする第二レール８２と、を有し、複数の受波素子アレイ体２０の一端に沿って配置される受波素子アレイ体駆動手段８と、第二駆動軸３ｂと平行に配置された脚部９１と、脚部９１に配置されるとともに受波素子アレイ体２０の移動をガイドする第三レール９２と、を有し、複数の受波素子アレイ体２０の他端に沿って配置される受波素子アレイ体ガイド手段９と、を有し、第一駆動軸３ａを回転させて受波素子支持体５を移動させるとともに、第二駆動軸３ｂを回転させて受波素子アレイ体２０を移動させることにより、受波素子２を等間隔に維持しながら配列間隔を変更できるように構成したものである。 The wave receiving array device 10 according to the fourth embodiment shown in FIGS. 5 and 6 is a wave receiving array device 10 having a plurality of wave receiving elements 2 arranged regularly, and screw grooves having unequal intervals. The first drive shaft 3a having 31; the first drive means 41 for rotating the first drive shaft 3a; and the wave receiving element that supports the wave receiving element 2 and is movable in the axial direction of the first drive shaft 3a. A plurality of wave receiving element arrays 20 having an element support 5 and a first rail 61 arranged at a position spaced apart from the first drive shaft 3a and guiding the movement of the wave receiving element support 5; A second drive shaft 3b that is arranged in a direction orthogonal to the one drive shaft 3a and has screw grooves 31 that are unequally spaced, a second drive means 42 that rotates the second drive shaft 3b, and the wave receiving element array body 20 Can be moved in the axial direction of the second drive shaft 3b And a second rail 82 that is disposed at a position spaced apart from the second drive shaft 3b and guides the movement of the wave receiving element array body supporting means 81. The wave receiving element array body driving means 8 disposed along one end of the plurality of wave receiving element array bodies 20, the leg portion 91 disposed in parallel with the second drive shaft 3b, and the leg portion 91 are disposed. A third rail 92 that guides the movement of the wave receiving element array body 20, and wave receiving element array body guide means 9 disposed along the other end of the wave receiving element array bodies 20. The wave receiving element support 5 is moved by rotating the first drive shaft 3a, and the wave receiving element array body 20 is moved by rotating the second drive shaft 3b. Configured to change the array spacing while maintaining Those were.
かかる受波アレイ装置１０は、第一実施形態に係る受波アレイ装置１を図５のＸ方向に複数配置するとともに、受波素子アレイ体駆動手段８及び受波素子アレイ体ガイド手段９によりＸ方向に移動できるように配置したものである。したがって、第一駆動軸３ａ、第一駆動手段４１、受波素子支持体５及び第一レール６１を有する受波素子アレイ体２０は、実質的に第一実施形態に係る受波アレイ装置１と同じ構成を有する。受波素子アレイ体２０上の受波素子２は、図５に示したように、Ｙ方向に移動可能に配置されている。 In the receiving array device 10, a plurality of receiving array devices 1 according to the first embodiment are arranged in the X direction of FIG. 5, and the receiving element array body driving means 8 and the receiving element array body guide means 9 It is arranged so that it can move in the direction. Therefore, the receiving element array body 20 having the first driving shaft 3a, the first driving means 41, the receiving element support 5 and the first rail 61 is substantially the same as the receiving array apparatus 1 according to the first embodiment. Have the same configuration. As shown in FIG. 5, the wave receiving elements 2 on the wave receiving element array body 20 are arranged so as to be movable in the Y direction.
なお、第一駆動軸３ａ及び第一駆動手段４１は、受波素子アレイ体駆動手段８及び受波素子アレイ体ガイド手段９上で滑動可能に配置される脚部１２により支持されている。脚部１２は、第一駆動軸３ａの端部を回転可能に支持する第一脚部１２ａと、第一駆動手段４１を支持する第二脚部１２ｂと、を有している。さらに、第一脚部１２ａ及び第二脚部１２ｂは、それぞれ第三レール９２上に配置された台座９３及び第二レール８２上に配置された台座８３上に支持されている。 The first drive shaft 3a and the first drive means 41 are supported by legs 12 that are slidably arranged on the wave receiving element array drive means 8 and the wave receiving element array guide 9. The leg portion 12 includes a first leg portion 12 a that rotatably supports the end portion of the first drive shaft 3 a and a second leg portion 12 b that supports the first drive means 41. Furthermore, the first leg portion 12a and the second leg portion 12b are supported on a pedestal 93 disposed on the third rail 92 and a pedestal 83 disposed on the second rail 82, respectively.
受波素子アレイ体駆動手段８は、図６（ａ）に示したように、受波素子アレイ体支持手段８１を軸方向に移動させる第二駆動軸３ｂ及び第二駆動手段４２により構成されている。第二駆動軸３ｂ及び第二駆動手段４２は、受波アレイ装置１０の底部１１を構成する平板上に立設された脚部１２に支持されている。脚部１２は、第二駆動軸３ｂの端部を回転可能に支持する第一脚部１２ａと、第二駆動手段４２を支持する第二脚部１２ｂと、を有している。 As shown in FIG. 6A, the wave receiving element array driving means 8 includes a second driving shaft 3b and a second driving means 42 for moving the wave receiving element array body supporting means 81 in the axial direction. Yes. The second drive shaft 3 b and the second drive means 42 are supported by the leg portion 12 erected on the flat plate constituting the bottom portion 11 of the wave receiving array device 10. The leg portion 12 includes a first leg portion 12a that rotatably supports an end portion of the second drive shaft 3b, and a second leg portion 12b that supports the second drive means 42.
また、受波素子アレイ体駆動手段８は、図６（ａ）及び（ｂ）に示したように、受波素子アレイ体支持手段８１及び第二レール８２により、受波素子アレイ体２０を第二駆動軸３ｂ上で移動可能に支持している。受波素子アレイ体支持手段８１は、第二駆動軸３ｂに移動可能に嵌め込まれる従動体８１ａと、第二レール８２に支持される台座８３と、従動体８１ａと台座８３とを繋ぐ連結部８１ｂと、を有している。従動体８１ａは、受波素子支持体５の従動体５１と同じ構成である。第二レール８２は、受波素子アレイ体駆動手段８を構成する第一脚部１２ａ及び第二脚部１２ｂに渡って掛け渡されている。台座８３は、第二レール８２上を滑動可能であればよく、車輪やボールを有していてもよい。 In addition, the wave receiving element array body driving means 8, as shown in FIGS. 6A and 6B, receives the wave receiving element array body 20 by the wave receiving element array body supporting means 81 and the second rail 82. It is supported so as to be movable on the two drive shafts 3b. The wave receiving element array support means 81 includes a follower 81a that is movably fitted to the second drive shaft 3b, a pedestal 83 supported by the second rail 82, and a connecting portion 81b that connects the follower 81a and the pedestal 83. And have. The driven body 81 a has the same configuration as the driven body 51 of the wave receiving element support 5. The second rail 82 is stretched over the first leg portion 12a and the second leg portion 12b constituting the wave receiving element array body driving means 8. The pedestal 83 only needs to be slidable on the second rail 82 and may have wheels and balls.
受波素子アレイ体ガイド手段９は、図６（ａ）及び（ｂ）に示したように、受波素子アレイ体駆動手段８による受波素子アレイ体２０の移動を補助する機能を有する。具体的には、接地面を構成する底部１１と、受波素子アレイ体駆動手段８の脚部１２と同じ高さを有する脚部９１と、脚部９１に掛け渡された第三レール９２と、第三レール９２に支持される台座９３と、を有している。脚部９１は、受波素子アレイ体駆動手段８の第一脚部１２ａ及び第二脚部１２ｂと対応する位置に配置されている。台座９３は、受波素子アレイ体２０のそれぞれに配置されており、第三レール９２上を滑動可能であればよく、車輪やボールを有していてもよい。なお、受波素子アレイ体ガイド手段９は、受波素子アレイ体駆動手段８と同じ構成とし、第二駆動手段４２を同期させるように制御してもよい。 The wave receiving element array body guide means 9 has a function of assisting the movement of the wave receiving element array body 20 by the wave receiving element array body driving means 8, as shown in FIGS. 6 (a) and 6 (b). Specifically, the bottom 11 constituting the ground plane, the leg 91 having the same height as the leg 12 of the wave receiving element array driving means 8, and the third rail 92 spanned over the leg 91, And a pedestal 93 supported by the third rail 92. The leg portion 91 is disposed at a position corresponding to the first leg portion 12 a and the second leg portion 12 b of the wave receiving element array body driving means 8. The pedestal 93 is disposed in each of the wave receiving element array bodies 20 and may be slidable on the third rail 92 and may have wheels and balls. The wave receiving element array body guide means 9 may have the same configuration as the wave receiving element array body driving means 8 and may be controlled so that the second driving means 42 is synchronized.
上述した第四実施形態に係る受波アレイ装置１０によれば、図５に示したように、第一駆動手段４１により第一駆動軸３ａを回転させることにより、Ｙ方向に受波素子２を移動させることができる。このとき、第一駆動軸３ａには上述したネジ溝３１が形成されていることから、受波素子２の配列間隔Δｄｙは均等に保持された状態で拡縮可能に構成される。また、第二駆動手段４２により第二駆動軸３ｂを回転させることにより、Ｘ方向に受波素子２を移動させることができる。このとき、第二駆動軸３ｂには上述したネジ溝３１が形成されていることから、受波素子２の配列間隔Δｄｘは均等に保持された状態で拡縮可能に構成される。 According to the wave receiving array device 10 according to the fourth embodiment described above, the wave receiving element 2 is moved in the Y direction by rotating the first driving shaft 3a by the first driving means 41 as shown in FIG. Can be moved. At this time, since the above-described screw groove 31 is formed in the first drive shaft 3a, the arrangement interval Δdy of the wave receiving elements 2 can be expanded and contracted while being evenly held. Further, the wave receiving element 2 can be moved in the X direction by rotating the second drive shaft 3 b by the second drive means 42. At this time, since the above-described screw groove 31 is formed in the second drive shaft 3b, the arrangement interval Δdx of the wave receiving elements 2 can be expanded and contracted while being evenly held.
そして、Ｘ方向の受波素子２の配列間隔Δｄｘ及びＹ方向の受波素子２の配列間隔Δｄｙを予め等しくなるように設定するとともに、第一駆動軸３ａ及び第二駆動軸３ｂを同じ構成にしておくことにより、第一駆動軸３ａ及び第二駆動軸３ｂを同じ回転数で回転させることにより、容易に受波素子２を等間隔に維持しながら配列間隔Δｄｘ，Δｄｙを変更することができる。 Then, the arrangement interval Δdx of the receiving elements 2 in the X direction and the arrangement interval Δdy of the receiving elements 2 in the Y direction are set to be equal in advance, and the first drive shaft 3a and the second drive shaft 3b have the same configuration. Thus, by rotating the first drive shaft 3a and the second drive shaft 3b at the same rotational speed, the arrangement intervals Δdx and Δdy can be easily changed while maintaining the wave receiving elements 2 at equal intervals. .
なお、第一駆動軸３ａ及び第二駆動軸３ｂの径やネジ溝３１の構成が異なる場合には、第一駆動軸３ａ及び第二駆動軸３ｂの回転数や回転量を適宜制御することにより、受波素子２を等間隔に維持しながら配列間隔Δｄｘ，Δｄｙを変更するようにしてもよい。 In addition, when the diameter of the 1st drive shaft 3a and the 2nd drive shaft 3b and the structure of the thread groove 31 differ, by controlling suitably the rotation speed and rotation amount of the 1st drive shaft 3a and the 2nd drive shaft 3b. The arrangement intervals Δdx and Δdy may be changed while maintaining the receiving elements 2 at equal intervals.
本発明は上述した実施形態に限定されず、第三実施形態に係る受波アレイ装置１に第二実施形態を適用してもよい、第四実施形態に係る受波アレイ装置１０に第二実施形態や第三実施形態を適用してもよい等、本発明の趣旨を逸脱しない範囲で種々変更が可能であることは勿論である。 The present invention is not limited to the above-described embodiment, and the second embodiment may be applied to the receiving array device 1 according to the third embodiment. The second embodiment is applied to the receiving array device 10 according to the fourth embodiment. It goes without saying that various modifications can be made without departing from the spirit of the present invention, such as applying the embodiment and the third embodiment.
１，１０ 受波アレイ装置
２ 受波素子
３ 駆動軸
３ａ 第一駆動軸
３ｂ 第二駆動軸
４ 駆動手段
５ 受波素子支持体
６ レール
８ 受波素子アレイ体駆動手段
９ 受波素子アレイ体ガイド手段
１３ カバー体
１４ 液体
２０ 受波素子アレイ体
３１ ネジ溝
４１ 第一駆動手段
４２ 第二駆動手段
５１ 従動体
５２ 台座
５３ 連結部
５４ 支持部
６１ 第一レール
８１ 受波素子アレイ体支持手段
８２ 第二レール
９２ 第三レール
DESCRIPTION OF SYMBOLS 1,10 Receive array device 2 Receive element 3 Drive shaft 3a First drive shaft 3b Second drive shaft 4 Drive means 5 Receive element support body 6 Rail 8 Receive element array body drive means 9 Receive element array body guide Means 13 Cover body 14 Liquid 20 Receiver element array body 31 Thread groove 41 First drive means 42 Second drive means 51 Follower body 52 Base 53 Connection part 54 Support part 61 First rail 81 Receiver element array body support means 82 Two rails 92 Third rail
Claims (5)
不等間隔のネジ溝を有する駆動軸と、
該駆動軸を回転させる駆動手段と、
前記受波素子を支持するとともに前記駆動軸の軸方向に移動可能に配置される受波素子支持体と、
前記駆動軸から離隔した位置に配置されるとともに前記受波素子支持体の移動をガイドするレールと、を有し、
前記駆動軸を回転させて前記受波素子支持体を移動させることにより、前記受波素子を等間隔に維持しながら配列間隔を変更できるように構成した、
ことを特徴とする受波アレイ装置。 In a receiving array device having a plurality of receiving elements regularly arranged,
A drive shaft with unevenly spaced screw grooves;
Drive means for rotating the drive shaft;
A receiving element support that supports the receiving element and is movably disposed in the axial direction of the drive shaft;
A rail that is disposed at a position spaced apart from the drive shaft and guides the movement of the receiving element support,
By rotating the drive shaft and moving the receiving element support, the arrangement interval can be changed while maintaining the receiving elements at equal intervals.
A receiving array device.
不等間隔のネジ溝を有する第一駆動軸と、該第一駆動軸を回転させる第一駆動手段と、前記受波素子を支持するとともに前記第一駆動軸の軸方向に移動可能に配置される受波素子支持体と、前記第一駆動軸から離隔した位置に配置されるとともに前記受波素子支持体の移動をガイドする第一レールと、を有する複数の受波素子アレイ体と、
前記第一駆動軸と直交する方向に配置されるとともに不等間隔のネジ溝を有する第二駆動軸と、該第二駆動軸を回転させる第二駆動手段と、前記受波素子アレイ体を支持するとともに前記第二駆動軸の軸方向に移動可能に配置される受波素子アレイ体支持手段と、前記第二駆動軸から離隔した位置に配置されるとともに前記受波素子アレイ体支持手段の移動をガイドする第二レールと、を有し、前記複数の受波素子アレイ体の一端に沿って配置される受波素子アレイ体駆動手段と、
前記第二駆動軸と平行に配置された脚部と、該脚部に配置されるとともに前記受波素子アレイ体の移動をガイドする第三レールと、を有し、前記複数の受波素子アレイ体の他端に沿って配置される受波素子アレイ体ガイド手段と、を有し、
前記第一駆動軸を回転させて前記受波素子支持体を移動させるとともに、前記第二駆動軸を回転させて前記受波素子アレイ体を移動させることにより、前記受波素子を等間隔に維持しながら配列間隔を変更できるように構成した、
ことを特徴とする受波アレイ装置。 In a receiving array device having a plurality of receiving elements regularly arranged,
The first drive shaft having unequally spaced screw grooves, the first drive means for rotating the first drive shaft, and the wave receiving element are supported and movable in the axial direction of the first drive shaft. A plurality of wave receiving element supports, and a first rail that is disposed at a position spaced apart from the first drive shaft and guides the movement of the wave receiving element support,
A second drive shaft that is arranged in a direction orthogonal to the first drive shaft and has screw grooves with unequal intervals, a second drive means for rotating the second drive shaft, and the receiving element array body are supported. And a receiving element array body supporting means arranged so as to be movable in the axial direction of the second driving shaft, and a movement of the receiving element array body supporting means arranged at a position separated from the second driving shaft. A second rail for guiding the receiving element, and receiving element array body driving means disposed along one end of the plurality of receiving element array bodies,
A plurality of receiving element arrays, comprising: leg portions arranged in parallel with the second drive shaft; and third rails arranged on the leg portions and guiding movement of the receiving element array body. Receiving element array body guide means disposed along the other end of the body,
The wave receiving element support is moved by rotating the first drive shaft, and the wave receiving element array body is moved by rotating the second drive shaft, thereby maintaining the wave receiving elements at equal intervals. The arrangement interval can be changed while
A receiving array device.
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| KR20190113335A (en) * | 2018-03-28 | 2019-10-08 | 주식회사 에이치비씨코리아 | Mini-position Adjustment Unit for Automated Facility for Product Inspection |
| KR102154322B1 (en) * | 2018-03-28 | 2020-09-09 | 주식회사 한국자동화기술 | Mini-position Adjustment Unit for Automated Facility for Product Inspection |
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