JP2011128086A - Sound wave measuring sensor - Google Patents

Sound wave measuring sensor Download PDF

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JP2011128086A
JP2011128086A JP2009288499A JP2009288499A JP2011128086A JP 2011128086 A JP2011128086 A JP 2011128086A JP 2009288499 A JP2009288499 A JP 2009288499A JP 2009288499 A JP2009288499 A JP 2009288499A JP 2011128086 A JP2011128086 A JP 2011128086A
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transmission
transducers
receiver
transmitter
reception
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JP5493821B2 (en
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Norimoto Suzuki
教幹 鈴木
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NEC Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound wave measuring sensor of a cross fan beam system capable of reducing side lobe. <P>SOLUTION: This sound wave measuring sensor has transmitters 1, 1 and receivers 2, 2, and is constituted in the cross fan beam system in which they are arranged mutually orthogonally. Each crossing spot of the transmitters 1, 1 and the receivers 2, 2 is constituted as a transmission/reception composite device 3B. The transmission/reception composite device 3B is constituted so that each transmission vibrator 1s is arrayed in the longitudinal direction of the transmitters 1, 1 without omission, and that each reception vibrator 2r is arrayed in the longitudinal direction of the receivers 2, 2 without omission. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、音波測定センサに係り、特に、送波器と受波器とが互いに直交するように配置されているクロスファンビーム方式に適用して好適な音波測定センサに関する。   The present invention relates to a sound wave measurement sensor, and more particularly to a sound wave measurement sensor suitable for application to a cross fan beam system in which a transmitter and a receiver are arranged so as to be orthogonal to each other.

音波測定センサでは、省スペース化などの理由により、送波器と受波器とが互いに直交するように配置されているクロスファンビーム方式のものが製作されている。   As a sound wave measurement sensor, a cross-fan beam type sensor in which a transmitter and a receiver are arranged so as to be orthogonal to each other is manufactured for reasons such as space saving.

この種の音波測定センサは、たとえば図７に示すように、送波器１，１と、受波器２，２と、送受波兼用器３とから構成されている。送波器１，１は、所定数の送波用振動子１ｓが直線状に２列配列されて構成されている。受波器２，２は、所定数の受波用振動子２ｒが直線状に２列配列されて構成されている。送受波兼用器３は、送波器１，１と受波器２との交差箇所にある。この音波測定センサでは、送波器１，１の送波用振動子１ｓから受波器２，２側にノイズが回り込むことがあるという問題点がある。このため、送受波兼用器３に代えて、送波専用器又は受波専用器のみが配置されているものもある。   For example, as shown in FIG. 7, this type of sound wave measurement sensor includes transmitters 1 and 1, receivers 2 and 2, and a transmitter / receiver combined device 3. The transmitters 1 and 1 are configured by arranging a predetermined number of transmitting transducers 1s in two lines in a straight line. The wave receivers 2 and 2 are configured by arranging a predetermined number of wave receiving vibrators 2r in a straight line. The transmitter / receiver 3 is located at the intersection of the transmitters 1, 1 and the receiver 2. This sound wave measuring sensor has a problem that noise may circulate from the transmitting transducer 1s of the transmitters 1 and 1 to the receivers 2 and 2 side. For this reason, instead of the transmission / reception combined device 3, only a dedicated transmission device or a dedicated reception device may be provided.

この場合、たとえば図８に示すように、送受波兼用器３に代えて、受波専用器３Ａが設けられている場合、送波器１，１の中心部の振動子が抜けることになり、送波ビームの垂直面の指向性では、たとえば図９に示すように、サイドローブが発生するという課題がある。送波器１，１の中心部の振動子が存在する場合に対して、抜けた場合の指向性は、たとえば図１０に示すように、サイドローブが数ｄＢ大きい。また、そのサイドローブを抑制する場合、シェーディングを施すことで対策することが有効な手段として一般的であるが、中心部の振動子が欠落しているために、図１１に示すように、シェーディングの有無にかかわらず、サイドローブが発生し、同シェーディングの効果が十分に得られないという課題がある。   In this case, for example, as shown in FIG. 8, when a dedicated receiving device 3 </ b> A is provided instead of the combined transmitter / receiver 3, the vibrator at the center of the transmitters 1, 1 comes off, In the directivity of the vertical plane of the transmitted beam, there is a problem that side lobes are generated, for example, as shown in FIG. For example, as shown in FIG. 10, the side lobe is several dB larger as compared to the case where the transducers at the center of the transmitters 1 and 1 are present. Further, in order to suppress the side lobe, it is common to take measures by applying shading. However, since the center vibrator is missing, as shown in FIG. Regardless of whether or not there is a sidelobe, there is a problem that the effect of the shading cannot be sufficiently obtained.

上記の音波測定センサの他、この種の関連技術としては、たとえば、特許文献１に記載された水中画像ソーナがある。
この水中画像ソーナでは、送波器は、周波数帯が割り当てられた水平／垂直の各１列からなるクロスファンビーム方式で構成されている。送信制御部は、送波音の送信ビーム方向をマトリクス状に走査させると共に、走査に同期して送波音の周波数を漸次連続的に制御する。受波器は、周波数帯の異なる２つの無指向性受波器で構成されている。乗算機は、各周波数帯別の信号を乗算する。帯域制限器は、乗算器の出力の高域信号を出力する。ＦＦＴ（Fast Fourier Transform）は、帯域制限器の出力より周波数成分を分別する。目標検出部は、受信信号のレベルに応じて、色もしくは濃淡情報に変換し、分別された各周波数成分に対応する送信ビーム方向を基に画像を生成する。 In addition to the above-described acoustic wave measurement sensor, as this type of related technology, for example, there is an underwater image sonar described in Patent Document 1.
In this underwater image sonar, the transmitter is configured by a cross fan beam system composed of one horizontal / vertical row to which a frequency band is assigned. The transmission control unit scans the transmission beam direction of the transmission sound in a matrix and gradually and continuously controls the frequency of the transmission sound in synchronization with the scanning. The receiver is composed of two omnidirectional receivers having different frequency bands. The multiplier multiplies the signal for each frequency band. The band limiter outputs a high frequency signal output from the multiplier. FFT (Fast Fourier Transform) separates frequency components from the output of the band limiter. The target detection unit converts the color or shading information according to the level of the received signal, and generates an image based on the direction of the transmission beam corresponding to each frequency component.

また、特許文献２に記載された超音波プローブでは、所定の曲率半径で湾曲されたパッキング材の表面に、アレイ状に配列された第１及び第２の振動子群が、両者が交差する如く配置され、両者の交差する部分が、振動子がマトリクス状に配列してなる第３の振動子群とされると共に、各振動子群が選択的に励振され、超音波の送受波が行われる。   Further, in the ultrasonic probe described in Patent Document 2, the first and second transducer groups arranged in an array form on the surface of the packing material curved with a predetermined radius of curvature so that they intersect each other. A portion where the two are arranged is a third transducer group in which transducers are arranged in a matrix, and each transducer group is selectively excited to transmit and receive ultrasonic waves. .

また、特許文献３に記載された水中画像ソーナでは、送波装置と受波装置とからなり、送波装置には複数の送波器が備えられ、受波装置には複数の受波器が備えられている。これらの送波器や受波器は、クロスアレイで構成されている。このクロスアレイでは、縦列をなす複数の送波アレイと、横列をなす複数の受波アレイとが互いに直交されている。また、送波アレイと受波アレイとが互いにクロスする箇所は、送受波兼用アレイとなる。   In addition, the underwater image sonar described in Patent Document 3 includes a wave transmitting device and a wave receiving device, the wave transmitting device includes a plurality of wave transmitters, and the wave receiving device includes a plurality of wave receivers. Is provided. These transmitters and receivers are configured as a cross array. In this cross array, a plurality of transmission arrays in a column and a plurality of reception arrays in a row are orthogonal to each other. A portion where the transmission array and the reception array cross each other is a combined transmission / reception array.

特開２００６−０６４５２４号公報JP 2006-064524 A 特開昭６２−２２７３２７号公報JP 62-227327 A 特開平０８−００５７２８号公報Japanese Patent Laid-Open No. 08-005728

しかしながら、上記関連技術では、次のような課題があった。
すなわち、特許文献１に記載された水中画像ソーナは、受波した周波数の組をマトリクス状にデマッピングし、受信ビーム方向とすることにより、データ処理量が削減されるものであるが、受波器が、２つの無指向性受波器で構成されているなど、この発明とは構成が異なり、上記の問題点を改善するものではない。 However, the related technology has the following problems.
In other words, the underwater image sonar described in Patent Document 1 reduces the amount of data processing by demapping a set of received frequencies in a matrix and setting the received beam direction. The configuration is different from that of the present invention, for example, the device is composed of two omnidirectional receivers, and does not improve the above problems.

特許文献２に記載された超音波プローブでは、第３の振動子群は、振動子がマトリクス状に配列されている。このマトリクス状に対しては、構成や効果について明確な記載が見られないため、上記の問題点を改善するものではない。   In the ultrasonic probe described in Patent Document 2, the third transducer group has transducers arranged in a matrix. This matrix does not improve the above-mentioned problems because no clear description of the configuration and effects is found.

特許文献３に記載された水中画像ソーナでは、送波アレイと受波アレイとが互いにクロスする箇所が送受波兼用アレイとなっているため、この発明とは構成が異なり、上記の問題点を改善するものではない。   In the underwater image sonar described in Patent Document 3, since the portion where the transmission array and the reception array cross each other is a transmission / reception combined array, the configuration is different from the present invention and the above problems are improved. Not what you want.

この発明は、上述の事情に鑑みてなされたもので、サイドローブが低減されるクロスファンビーム方式の音波測定センサを提供することを目的としている。   The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a cross-fan beam type sound wave measurement sensor in which side lobes are reduced.

上記課題を解決するために、この発明の第１の構成は、所定数の送波用振動子が直線状に所定列配列されて構成されている送波器と、所定数の受波用振動子が直線状に所定列配列されて構成されている受波器とを有し、前記送波器と前記受波器とが互いに直交するように配置されているクロスファンビーム方式の音波測定センサに係り、前記送波器と前記受波器との交差箇所は、当該各送波用振動子が前記送波器の長手方向に不欠落となるように配列され、かつ、当該各受波用振動子が前記受波器の長手方向に不欠落となるように配列されてなる送波受波複合器として構成されていることを特徴としている。   In order to solve the above-described problem, a first configuration of the present invention includes a transmitter in which a predetermined number of transmitting transducers are arranged in a predetermined line in a straight line, and a predetermined number of receiving vibrations. A cross-fan beam type sound wave measurement sensor having a receiver in which a child is arranged in a predetermined line in a straight line, and the transmitter and the receiver are arranged so as to be orthogonal to each other Therefore, the intersections between the transmitter and the receiver are arranged so that the respective transducers are not missing in the longitudinal direction of the transmitter, and The transducer is configured as a transmission / reception composite device in which the transducers are arranged so as not to be missing in the longitudinal direction of the receiver.

この発明の構成によれば、クロスファンビーム方式の音波測定センサの指向特性のサイドローブを低減することができる。   According to the configuration of the present invention, the side lobe of the directivity of the cross fan beam type acoustic wave measurement sensor can be reduced.

この発明の第１の実施形態である音波測定センサの要部の構成を示す模式図である。It is a schematic diagram which shows the structure of the principal part of the sound wave measurement sensor which is 1st Embodiment of this invention. 図１の音波測定センサ、及び交差箇所に振動子がない場合の指向性を示す図である。It is a figure which shows the directivity in case there is no vibrator in the sound wave measurement sensor of FIG. 1, and an intersection. シェーディングを施した場合の指向性を示す図である。It is a figure which shows the directivity at the time of giving a shading. シェーディングを施した場合でビームシフト時の指向性を示す図である。It is a figure which shows the directivity at the time of beam shift in the case of giving a shading. この発明の第２の実施形態である音波測定センサの要部の構成を示す模式図である。It is a schematic diagram which shows the structure of the principal part of the sound wave measurement sensor which is 2nd Embodiment of this invention. この発明の第３の実施形態である音波測定センサの要部の構成を示す模式図である。It is a schematic diagram which shows the structure of the principal part of the sound wave measurement sensor which is 3rd Embodiment of this invention. 音波測定センサの構成図である。It is a block diagram of a sound wave measurement sensor. 他の音波測定センサの構成図である。It is a block diagram of another sound wave measurement sensor. 送波ビームの垂直面の指向性を示す図である。It is a figure which shows the directivity of the vertical surface of a transmission beam. 振動子が存在する場合、及び抜けた場合の指向性を示す図である。It is a figure which shows the directivity when a vibrator | oscillator exists and is missing. シェーディングを施した場合の指向性を示す図である。It is a figure which shows the directivity at the time of giving a shading.

上記送波受波複合器は、当該送波用振動子と当該受波用振動子とが互い違いにマトリクス状に配列されて構成されている音波測定センサを実現する。   The transmission / reception composite device realizes a sound wave measurement sensor in which the transmission transducers and the reception transducers are alternately arranged in a matrix.

また、上記送波受波複合器は、当該送波用振動子と当該受波用振動子とが市松パターン状に配列されて構成されている。また、上記送波受波複合器は、上記送波器を構成する上記送波用振動子の列数及び上記受波器を構成する上記受波用振動子の列数に対応して上記マトリクスが構成されている。また、上記送波受波複合器は、上記送波器を構成する上記送波用振動子の列数及び上記受波器を構成する上記受波用振動子の列数に対して無対応に上記マトリクスが構成されている。   The transmission / reception composite device is configured by arranging the transmission transducers and the reception transducers in a checkered pattern. Further, the transmission / reception composite device includes the matrix corresponding to the number of columns of the transmission transducers constituting the transmitter and the number of columns of the reception transducers constituting the receiver. Is configured. In addition, the transmission / reception composite unit has no correspondence to the number of columns of the transmission transducers constituting the transmitter and the number of columns of the reception transducers constituting the receiver. The matrix is configured.

実施形態１Embodiment 1

図１は、この発明の第１の実施形態である音波測定センサの要部の構成を示す模式図である。
この形態の音波測定センサは、同図に示すように、図７中と同様の送波器１，１と、受波器２，２とを有し、これらが互いに直交するように配置されたクロスファンビーム方式で構成されている。横方向に配置されている送波器１，１は、各送波用振動子１ｓに所定の駆動信号が与えられることにより、縦方向に送波ビームを形成して送波する。また、縦方向に配置されている受波器２，２は、各受波用振動子２ｒに所定の駆動信号が与えられることにより、横方向に受波ビームを形成して、送波器１，１の送波ビームが目標物に到達して反射したときの反射波を受波する。これにより、音響データが得られる。 FIG. 1 is a schematic diagram showing the configuration of the main part of a sound wave measuring sensor according to the first embodiment of the present invention.
As shown in the figure, the acoustic wave measuring sensor of this embodiment has transmitters 1 and 1 and receivers 2 and 2 similar to those in FIG. 7, and these are arranged so as to be orthogonal to each other. The cross fan beam system is used. The transmitters 1, 1 arranged in the horizontal direction form a transmission beam in the vertical direction and transmit a wave when a predetermined drive signal is given to each transducer 1 s for transmission. Further, the receivers 2 and 2 arranged in the vertical direction form a received beam in the horizontal direction when a predetermined drive signal is given to each of the receiving transducers 2r. , 1 receives the reflected wave when the transmitted beam reaches the target and is reflected. Thereby, acoustic data is obtained.

特に、この実施形態では、送波器１，１と受波器２，２との交差箇所は、送波受波複合器３Ｂとして構成されている。送波受波複合器３Ｂは、各送波用振動子１ｓが送波器１，１の長手方向に不欠落（すなわち、振動子間の距離が開かない）となるように配列され、かつ、各受波用振動子２ｒが受波器２，２の長手方向に不欠落（すなわち、振動子間の距離が開かない）となるように配列されて構成されている。また、この実施形態では、送波受波複合器３Ｂは、送波用振動子１ｓと受波用振動子２ｒとが互い違いにマトリクス状に配列されて構成されている。この場合、送波受波複合器３Ｂでは、送波器１，１を構成する送波用振動子１ｓの列数及び受波器２，２を構成する受波用振動子２ｒの列数に対応して上記マトリクスが構成されている。なお、送波器１，１が横方向、及び受波器２，２が縦方向に配置されているが、逆に配置されていても良い。   In particular, in this embodiment, the intersection of the transmitters 1 and 1 and the receivers 2 and 2 is configured as a transmission / reception complex 3B. The transmission / reception complex 3B is arranged so that each transmission transducer 1s is not missing in the longitudinal direction of the transmitters 1 and 1 (that is, the distance between the transducers is not opened), and Each of the receiving vibrators 2r is arranged so as not to be missing in the longitudinal direction of the receivers 2 and 2 (that is, the distance between the vibrators is not opened). In this embodiment, the transmission / reception composite device 3B is configured by alternately arranging the transmission transducers 1s and the reception transducers 2r in a matrix. In this case, in the transmission / reception composite unit 3B, the number of columns of the transmission transducer 1s constituting the transmitters 1 and 1 and the number of columns of the reception transducer 2r constituting the receivers 2 and 2 are set. Correspondingly, the matrix is configured. Although the transmitters 1 and 1 are arranged in the horizontal direction and the receivers 2 and 2 are arranged in the vertical direction, they may be arranged in reverse.

図２は、図１の音波測定センサ、及び交差箇所に振動子がない場合の指向性を示す図、図３は、シェーディングを施した場合の指向性を示す図、及び図４が、シェーディングを施した場合でビームシフト時の指向性を示す図である。
これらの図を参照して、この形態の音波測定センサの動作について説明する。
この音波測定センサでは、横方向に配置されている送波器１，１により、各送波用振動子１ｓに所定の駆動信号が与えられることにより、縦方向に送波ビームが形成されて送波される。また、縦方向に配置されている受波器２，２により、各受波用振動子２ｒに所定の駆動信号が与えられることにより、横方向に受波ビームが形成され、送波器１，１の送波ビームが目標物に到達して反射したときの反射波が受波される。この反射波がソーナなどで解析されて音響データが得られる。 FIG. 2 is a diagram showing the directivity when there is no transducer at the intersection, FIG. 3 is a diagram showing directivity when shading is performed, and FIG. 4 is a diagram showing shading. It is a figure which shows the directivity at the time of beam shift in the case of giving.
With reference to these drawings, the operation of the acoustic wave measurement sensor of this embodiment will be described.
In this acoustic wave measurement sensor, a predetermined drive signal is given to each transducer 1s by the transmitters 1 and 1 arranged in the horizontal direction, so that a transmission beam is formed in the vertical direction and transmitted. Waved. In addition, when a predetermined drive signal is given to each receiving vibrator 2r by the receivers 2 and 2 arranged in the vertical direction, a receiving beam is formed in the horizontal direction. A reflected wave when one transmitted beam reaches the target and is reflected is received. This reflected wave is analyzed by a sonar to obtain acoustic data.

この場合、周波数ｆ、振動子間距離ｄ、振動子の大きさｌ、及び振動子数ｎとして、送波ビームの垂直面の指向性を理論計算すると、図２に示す指向性となり、サイドローブが数ｄＢ抑制される。また、ある一定条件下で音波測定センサにシェーディングを施した場合の指向性計算を行うと、図３に示すように、サイドローブが５〜６ｄＢ程度抑制され、また、図４に示すように、シェーディングを施した場合でビームシフト時でも、同様に、サイドローブが５〜６ｄＢ程度抑制される。   In this case, when the directivity of the vertical plane of the transmitted beam is theoretically calculated with the frequency f, the distance d between the vibrators, the size l of the vibrator, and the number of vibrators n, the directivity shown in FIG. Is suppressed by several dB. Moreover, when directivity calculation is performed when the sound wave measurement sensor is subjected to shading under a certain condition, side lobes are suppressed by about 5 to 6 dB as shown in FIG. 3, and as shown in FIG. Similarly, when the shading is performed and the beam shift is performed, the side lobe is suppressed by about 5 to 6 dB.

以上のように、この第１の実施形態では、送波器１，１と受波器２，２との交差箇所が送波受波複合器３Ｂとして構成されているので、送波器１，１のサイドローブが抑制され、また、シェーディングを施した場合でも、同送波受波複合器３Ｂにより、サイドローブが抑制される。   As described above, in the first embodiment, since the intersection of the transmitters 1 and 1 and the receivers 2 and 2 is configured as the transmission / reception complex 3B, 1 side lobes are suppressed, and even when shading is performed, the side lobes are suppressed by the transmission / reception receiving complex 3B.

実施形態２Embodiment 2

図５は、この発明の第２の実施形態である音波測定センサの要部の構成を示す模式図である。
この形態の音波測定センサでは、同図５に示すように、第１の実施形態を示す図１中の送波器１，１及び受波器２，２に代えて、異なる構成の送波器１Ａ，１Ａ及び受波器２Ａ，２Ａが設けられている。送波器１Ａ，１Ａは、所定数の送波用振動子１ｓが直線状に１列配列されて構成されている。受波器２Ａ，２Ａは、所定数の受波用振動子２ｒが直線状に１列配列されて構成されている。また、送波器１Ａ，１Ａと受波器２Ａ，２Ａとの交差箇所は、図１中と同様の送波受波複合器３Ｂとして構成されている。 FIG. 5 is a schematic diagram showing a configuration of a main part of a sound wave measuring sensor according to the second embodiment of the present invention.
In the acoustic wave measurement sensor of this embodiment, as shown in FIG. 5, instead of the transmitters 1 and 1 and the receivers 2 and 2 in FIG. 1A, 1A and receivers 2A, 2A are provided. The transmitters 1A and 1A are configured by arranging a predetermined number of transducers for transmission 1s in a straight line. The wave receivers 2A and 2A are configured by arranging a predetermined number of wave receiving vibrators 2r in a straight line. Further, the intersection of the transmitters 1A, 1A and the receivers 2A, 2A is configured as a transmitting / receiving complex 3B similar to that in FIG.

この音波測定センサでは、送波器１Ａ，１Ａを構成する送波用振動子１ｓの列数及び受波器２Ａ，２Ａを構成する受波用振動子２ｒの列数に対して無対応にマトリクスが構成されて図１の音波測定センサとほぼ同様の動作が行われ、同様の利点がある。   In this acoustic wave measurement sensor, the matrix does not correspond to the number of columns of the transmitting transducer 1s constituting the transmitters 1A and 1A and the number of columns of the receiving transducer 2r constituting the receivers 2A and 2A. Is configured to perform substantially the same operation as the sound wave measurement sensor of FIG.

実施形態３Embodiment 3

図６は、この発明の第３の実施形態である音波測定センサの要部の構成を示す模式図である。
この形態の音波測定センサでは、同図６に示すように、送波器１Ｂ，１Ｂと、受波器２Ｂ，２Ｂとを有し、これらが互いに直交するように配置されている。送波器１Ｂ，１Ｂは、所定数の送波用振動子１ｓが直線状に３列配列されて構成されている。受波器２Ｂ，２Ｂは、所定数の受波用振動子２ｒが直線状に３列配列されて構成されている。特に、この実施形態では、送波器１Ｂ，１Ｂと受波器２Ｂ，２Ｂとの交差箇所は、送波受波複合器３Ｃとして構成されている。 FIG. 6 is a schematic diagram showing the configuration of the main part of a sound wave measuring sensor according to the third embodiment of the present invention.
As shown in FIG. 6, the acoustic wave measurement sensor of this embodiment includes transmitters 1B and 1B and receivers 2B and 2B, which are arranged so as to be orthogonal to each other. The transmitters 1B and 1B are configured by arranging a predetermined number of transmitting transducers 1s in a straight line in three rows. The wave receivers 2B and 2B are configured by arranging a predetermined number of wave receiving vibrators 2r in a straight line in three rows. In particular, in this embodiment, the intersection between the transmitters 1B and 1B and the receivers 2B and 2B is configured as a transmission / reception complex 3C.

送波受波複合器３Ｃは、送波器１Ｂ，１Ｂを構成する送波用振動子１ｓの列数（３列）及び受波器２Ｂ，２Ｂを構成する受波用振動子２ｒの列数（３列）に対応してマトリクスが構成されている。この送波受波複合器３Ｃは、図１中の送波受波複合器３Ｂと同様に、各送波用振動子１ｓが送波器１Ｂ，１Ｂの長手方向に不欠落（すなわち、振動子間の距離が開かない）となるように配列され、かつ、各受波用振動子２ｒが受波器２Ｂ，２Ｂの長手方向に不欠落（すなわち、振動子間の距離が開かない）となるように配列されて構成されている。この音波測定センサでは、図１の音波測定センサとほぼ同様の動作が行われ、同様の利点がある。   The transmission / reception complex 3C includes the number of columns (3 columns) of the transducers for transmission 1s constituting the transmitters 1B and 1B and the number of columns of the transducers 2r for reception constituting the receivers 2B and 2B. A matrix is configured corresponding to (3 columns). In the transmission / reception complex 3C, similarly to the transmission / reception complex 3B in FIG. 1, each transducer 1s is not missing in the longitudinal direction of the transducers 1B and 1B (that is, the transducer And the receiving vibrators 2r are not missing in the longitudinal direction of the receivers 2B and 2B (that is, the distance between the vibrators is not opened). Are arranged and configured. This sound measurement sensor performs substantially the same operation as the sound measurement sensor of FIG. 1 and has the same advantages.

以上、この発明の実施形態を図面により詳述してきたが、具体的な構成は同実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計の変更などがあっても、この発明に含まれる。
たとえば、上記第３の実施形態では、送波受波複合器３Ｃの送波用振動子１ｓ及び受波用振動子２ｒが、市松パターン状に配列されていても良い（請求項３に対応）。また、送波器１，１Ａ，１Ｂを構成する送波用振動子１ｓの列数、及び受波器２，２Ａ，２Ｂを構成する受波用振動子２ｒの列数は、上記各実施形態に限定されない。 The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiment, and even if there is a design change without departing from the gist of the present invention, Included in the invention.
For example, in the third embodiment, the transmission transducer 1s and the reception transducer 2r of the transmission / reception complex 3C may be arranged in a checkered pattern (corresponding to claim 3). . Further, the number of columns of the transmitting transducers 1s constituting the transmitters 1, 1A, 1B and the number of columns of the receiving transducers 2r configuring the receivers 2, 2A, 2B are described in the above embodiments. It is not limited to.

この発明は、クロスファンビーム方式を使用するソーナや音響測定装置で、送波器と受波器との交差箇所を送受波兼用としない場合に適用できる。   The present invention can be applied to a sonar or acoustic measurement device that uses a cross fan beam system, where the intersection between the transmitter and the receiver is not used for both transmission and reception.

１，１Ａ，１Ｂ 送波器
２，２Ａ，２Ｂ 受波器
１ｓ 送波用振動子
２ｒ 受波用振動子
３Ｂ，３Ｃ 送波受波複合器 1, 1A, 1B Transmitter 2, 2A, 2B Receiver 1s Transmitter transducer 2r Receiver transducer 3B, 3C Transmitter / receiver complex

Claims (5)

所定数の送波用振動子が直線状に所定列配列されて構成されている送波器と、
所定数の受波用振動子が直線状に所定列配列されて構成されている受波器とを有し、
前記送波器と前記受波器とが互いに直交するように配置されているクロスファンビーム方式の音波測定センサであって、
前記送波器と前記受波器との交差箇所は、
当該各送波用振動子が前記送波器の長手方向に不欠落となるように配列され、かつ、当該各受波用振動子が前記受波器の長手方向に不欠落となるように配列されてなる送波受波複合器として構成されていることを特徴とする音波測定センサ。 A transmitter in which a predetermined number of transducers for transmission are linearly arranged in a predetermined row; and
A receiver having a predetermined number of receiving vibrators arranged in a predetermined line in a straight line;
A cross-fan beam type sound wave measurement sensor in which the transmitter and the receiver are arranged so as to be orthogonal to each other,
The intersection of the transmitter and the receiver is
The transducers for transmission are arranged so as to be missing in the longitudinal direction of the transmitter, and the transducers for receiving are arranged so as to be missing in the longitudinal direction of the receiver. A sonic wave measuring sensor configured as a transmission / reception complex. 前記送波受波複合器は、
当該送波用振動子と当該受波用振動子とが互い違いにマトリクス状に配列されて構成されていることを特徴とする請求項１記載の音波測定センサ。 The transmission / reception complex is:
2. The acoustic wave measuring sensor according to claim 1, wherein the transmitting transducers and the receiving transducers are alternately arranged in a matrix. 前記送波受波複合器は、
当該送波用振動子と当該受波用振動子とが市松パターン状に配列されて構成されていることを特徴とする請求項１又は２記載の音波測定センサ。 The transmission / reception complex is:
3. The sound wave measuring sensor according to claim 1, wherein the transmitting transducer and the receiving transducer are arranged in a checkered pattern. 前記送波受波複合器は、
前記送波器を構成する前記送波用振動子の列数及び前記受波器を構成する前記受波用振動子の列数に対応して前記マトリクスが構成されていることを特徴とする請求項２又は３記載の音波測定センサ。 The transmission / reception complex is:
The matrix is configured corresponding to the number of columns of the transmitting transducers constituting the transmitter and the number of columns of the receiving transducers configuring the receiver. Item 4. The acoustic wave measurement sensor according to item 2 or 3. 前記送波受波複合器は、
前記送波器を構成する前記送波用振動子の列数及び前記受波器を構成する前記受波用振動子の列数に対して無対応に前記マトリクスが構成されていることを特徴とする請求項２又は３記載の音波測定センサ。 The transmission / reception complex is:
The matrix is configured in a non-corresponding manner with respect to the number of columns of the transmitting transducers constituting the transmitter and the number of columns of the receiving transducers configuring the receiver. The sound wave measuring sensor according to claim 2 or 3.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105044728A (en) * 2015-08-03 2015-11-11 中国船舶重工集团公司第七一〇研究所 Fish detector probe used for small size or medium size fishing boat
JP2019203699A (en) * 2018-05-21 2019-11-28 Ｎｅｃネットワーク・センサ株式会社 Noise reduction device of underwater image sonar, noise reduction method, and noise reduction program

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JPH11258328A (en) * 1998-03-12 1999-09-24 Hitachi Shonan Denshi Co Ltd Method for early searching target

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JPS59107285A (en) * 1982-12-10 1984-06-21 Nec Corp Display device of submarine topography
JPH09189756A (en) * 1996-01-09 1997-07-22 Secom Co Ltd Ultrasonic wave transmitter/receiver and ultrasonic measuring device
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* Cited by examiner, † Cited by third party
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CN105044728A (en) * 2015-08-03 2015-11-11 中国船舶重工集团公司第七一〇研究所 Fish detector probe used for small size or medium size fishing boat
JP2019203699A (en) * 2018-05-21 2019-11-28 Ｎｅｃネットワーク・センサ株式会社 Noise reduction device of underwater image sonar, noise reduction method, and noise reduction program

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