JPH0438634Y2 - - Google Patents
Info
- Publication number
- JPH0438634Y2 JPH0438634Y2 JP1983078252U JP7825283U JPH0438634Y2 JP H0438634 Y2 JPH0438634 Y2 JP H0438634Y2 JP 1983078252 U JP1983078252 U JP 1983078252U JP 7825283 U JP7825283 U JP 7825283U JP H0438634 Y2 JPH0438634 Y2 JP H0438634Y2
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- frequency transducer
- low
- frequency
- reflector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000002592 echocardiography Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は水底面を探知する高周波トランスジユ
ーサと水底面下の埋没物体などを探知する低周波
トランスジユーサとを１つの反射体内に設けた水
中トランスジユーサ装置に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention provides a high-frequency transducer for detecting the underwater surface and a low-frequency transducer for detecting buried objects under the underwater surface in a single reflector. The present invention relates to an underwater transducer device.
この種の送受波器としては、パラポラによる曲
面を反射面とし、この曲面形の焦点にトランスジ
ユーサを配置したものが実開昭47−11253（以下、
従来技術１という）などにより、また、90度円錐
傾斜面形の反射板と中心・中間点に低周波側のト
ランスジユーサを配置し、その下方に高周波側の
トランスジユーサを配置したものが実公昭37−
291（以下、従来技術２という）により、さらに、
反射面を形成する反射体を気泡入りのプラステイ
ク材で形成するとともに、この反射体に、なるべ
く薄いプラステイク材の内壁と外壁を施したもの
が特開昭53−39160（以下、従来技術３という）な
どにより開示されている。
This type of transducer uses a parapolar curved surface as a reflecting surface, and a transducer is placed at the focal point of this curved surface.
Conventional technology 1), etc., has a reflector with a 90-degree conical slope, a transducer on the low frequency side placed at the center/midpoint, and a transducer on the high frequency side placed below it. Actual public school 37-
291 (hereinafter referred to as prior art 2), further,
The reflector that forms the reflective surface is made of plastic material containing bubbles, and this reflector is provided with inner and outer walls made of plastic material as thin as possible, as disclosed in Japanese Patent Application Laid-Open No. 53-39160 (hereinafter referred to as Prior Art 3). ), etc.
しかし、水底面下の埋没物体などを探知するに
は、周波数が３〜10kHz程度の非常に波長の長い
音波を使用する必要があり、反射体の外径が約１
ｍ以上におよぶ非常に大きなものにしなければ、
十分な探知力が得られないため、上記の従来技術
１のものでは、反射曲面の背面側が空隙になつて
いるため、水中での波浪や舷側に装備する場合の
取り付け取り外し作業、あるいは運搬時の積み荷
作業などの取扱作業時において、変形を受けやす
いという不都合がある。
However, in order to detect objects buried under the water, it is necessary to use sound waves with a very long wavelength, with a frequency of about 3 to 10 kHz, and the outer diameter of the reflector must be about 1 kHz.
Unless it is made very large, reaching more than m,
Because sufficient detection power cannot be obtained, in the above-mentioned prior art 1, the back side of the reflective curved surface is a gap, so it is difficult to install or remove it when it is installed on the side of the ship due to waves in the water, or during transportation. There is a disadvantage that it is easily deformed during handling operations such as loading operations.
この変形を受けないようにするためには、反射
板１の部分を十分頑丈にする必要がある。 In order to avoid this deformation, it is necessary to make the reflection plate 1 sufficiently strong.
したがつて、この部分を形成する板材の肉厚を
相当厚くしなければならず、結局、全体的に重量
がかさみ、重いものとならざる得ない。 Therefore, the thickness of the plate material forming this part must be made considerably thicker, which results in an increase in overall weight.
この重さが、また、作業をやりずらくし、他の
物にぶつけた場合の衝撃力を大きくし、それに耐
えるには、さらに頑丈に作ることになり、ますま
す、重い物になつてしうという不都合がある。 This weight also makes it difficult to work, increases the impact force when it hits another object, and in order to withstand it, it has to be made even stronger, making it even heavier. There is this inconvenience.
また、上記の従来技術１のものを上記の従来の
技術技術２のように、頑丈なもので形成したので
は、重くなり過ぎて、実用に不向きであり、これ
を上記の従来技術３のように、外なるべく薄いプ
ラステイク材の内壁と外壁を施したものにしたと
しても、上記のような取扱作業時に変形を受けや
すい点が改善されないという不都合がある。 Furthermore, if the above-mentioned prior art 1 were made of a sturdy material like the above-mentioned conventional technology 2, it would be too heavy and unsuitable for practical use. Furthermore, even if the inner and outer walls are made of plastic material as thin as possible, the disadvantage is that the above-mentioned tendency to deform during handling cannot be improved.
さらに、水中音波の伝搬能率は周波数が高くな
るにつれて極度に低下してくるので、ビームをな
るべく先鋭なものにして音波エネルギーを集中さ
せ、強い音波を送波し得るようにした方がよい
が、従来技術２による構造を用いたのでは、低周
波トランスジユーサの内径によつて、高周波トラ
ンスジユーサの外径が制限を受けるため、所望の
鋭いビームが得られないという不都合がある。 Furthermore, the propagation efficiency of underwater sound waves decreases extremely as the frequency increases, so it is better to make the beam as sharp as possible to concentrate the sound wave energy and transmit strong sound waves. If the structure according to Prior Art 2 is used, the outer diameter of the high frequency transducer is limited by the inner diameter of the low frequency transducer, so there is a problem that a desired sharp beam cannot be obtained.
このため、こうした不都合のないものの提供が
望まれているという課題がある。 Therefore, there is a problem in that it is desired to provide something that does not have these inconveniences.
本考案は、上記のような
内側にパラポラ曲面またはこれに近い曲面の反
射面をもつ反射体の曲面の焦点付近に配置する低
周波トランスジユーサを反射面の中心に設けた固
定軸によつて支持するとともに、固定軸の下方に
反射面を介さずに音波を発射する高周波トランス
ジユーサを配置した水中トランスジユーサ装置に
おいて、
アルミニウムを主材とする金属板でなる反射面
と、反射体の外側を保護するための金属またはプ
ラステイク材でなる保護カバーと、上記の反射面
と上記の保護カバーとの間に充填した気泡入りの
樹脂材でなる反射材とを有する反射体と、
上記の低周波トランスジユーサの外径よりも大
きい外径をもち、上記の固定軸の下端に側に設け
られ、音波の反射材で低周波トランスジユーサと
高周波トランスジユーサとを隔離して固定するた
めの取付板と、
上記の取付板の下側に固定され、上記の低周波
トランスジユーサの内径よりも大きい外径をもつ
高周波トランスジユーサと
を設ける構造を有するものを提供することにより
上記の課題を解決し得るようにしたものである。
The present invention uses a low-frequency transducer placed near the focal point of the curved surface of a reflector that has a reflecting surface with a parapolar curved surface or a curved surface close to this on the inside, as described above, using a fixed shaft located at the center of the reflecting surface. In an underwater transducer device in which a high-frequency transducer is placed below a fixed shaft and emits sound waves without going through a reflective surface, the reflective surface is made of a metal plate mainly made of aluminum, and the reflector is a reflector having a protective cover made of metal or plastic material for protecting the outside; and a reflective material made of a resin material containing bubbles filled between the reflective surface and the protective cover; It has an outer diameter larger than the outer diameter of the low-frequency transducer, and is provided at the lower end of the fixed shaft, and is used to isolate and fix the low-frequency transducer and the high-frequency transducer using a sound wave reflecting material. and a high frequency transducer fixed to the lower side of the mounting plate and having an outer diameter larger than the inner diameter of the low frequency transducer. It is designed to solve the following problems.
以下、実施例を図面により説明する。 Examples will be described below with reference to the drawings.
図において、パラボラまたはこれに近い曲面を
もつた反射面１は、例えばアルミニウムを主材と
する金属板を成形したもので、保護カバー２は、
反射面１および以下に説明するトランスジユサな
どを保護するための金属またはプラステイク材よ
りなる。 In the figure, a reflective surface 1 having a parabolic or similar curved surface is formed from a metal plate mainly made of aluminum, for example, and a protective cover 2 is
It is made of metal or plastic material to protect the reflective surface 1 and the transducer described below.
反射材３は例えば発泡スチロール材または独立
気泡をもつたゴム材、つまり、気泡入りの樹脂材
で、反射面１を浸入してくる低い周波数の音波が
保護カバー２を通り抜けないようにするために、
反射面１と保護カバー２の間隙に充填してある。 The reflective material 3 is, for example, a foamed polystyrene material or a rubber material with closed cells, that is, a resin material containing cells.
The gap between the reflective surface 1 and the protective cover 2 is filled.
つまり、反射面１と保護カバー２と反射材３と
で１つの反射体を形成しているものである。 In other words, the reflective surface 1, the protective cover 2, and the reflective material 3 form one reflector.
固定軸４は、図のように、反射面１の中心に設
けられており、保護カバー２と反射面１を支持す
るためのフランジ５に固定してあつて、低周波ト
ランスジユサ６、高周波トランスジユサ８、取付
板７の位置ぎめを行なつて固定する。低周波トラ
ンスジユサ６は例えば周波数7.5kHzの環状形トラ
ンスジユサで、発射音波の主成分は、第１図の１
０にて示したように環状の半径の方向に発射され
る。 As shown in the figure, the fixed shaft 4 is provided at the center of the reflective surface 1, is fixed to a flange 5 for supporting the protective cover 2 and the reflective surface 1, and is attached to a low frequency transducer 6 and a high frequency transducer 8. , position and fix the mounting plate 7. The low frequency transducer 6 is, for example, an annular transducer with a frequency of 7.5 kHz, and the main component of the emitted sound wave is 1 in Fig. 1.
It is fired in the direction of the annular radius as shown at 0.
取付板７は、低周波トランスジユサ６と高周波
トランスジユサ８を隔離して固定するために設け
てある。 The mounting plate 7 is provided to isolate and fix the low frequency transducer 6 and the high frequency transducer 8.
取付板７の材質は、音波の反射材、例えば独立
気泡をもつたゴム材をアルミニウムのような金属
板に張り合せた構造で、第１図の１１にて示した
ように、高周波トランスジユサ８の発射音波を、
できるだけ、直接に目的方向にむける効果ももた
せてある。 The material of the mounting plate 7 is a structure in which a sound wave reflecting material, such as a rubber material with closed cells, is laminated to a metal plate such as aluminum, and as shown at 11 in FIG. Emit sound waves,
It also has the effect of directing you towards your goal as much as possible.
図のように反射面１、取付板７、低周波トラン
スジユサ６および高周波トランスジユサ８を配置
することによつて、本考案は水底面の深さ、凹凸
の状況と水底面下の軟泥（ヘドロと呼ばれてい
る）層の厚さ、その中に埋没している物体（例え
ばパイプラインなど）の探知に有効である。 By arranging the reflecting surface 1, the mounting plate 7, the low frequency transducer 6, and the high frequency transducer 8 as shown in the figure, the present invention can determine the depth of the water bottom, the unevenness of the water bottom, and the soft sludge (called sludge) under the water bottom. It is effective in detecting the thickness of layers (such as those buried in the ground) and objects buried within them (such as pipelines).
この目的のために、高周波トランスジユサ８に
は、100kHz〜400kHz程度の周波数を選定するの
がよく、低周波トランスジユサ６には3kHz〜10k
Hz程度の周波数を選定する。反射面１は上記の低
周波の音波を目標とする水底の方向に集中させる
ために設けたもので、一例として低周波トランス
ジユサ６に7.5kHz、反射面１の直径を1.2ｍに設
定した場合には、音波の発射エネルギーの大部分
が20度の範囲に、ヘツドライトのビームのように
集中することが認められた。 For this purpose, it is best to select a frequency of about 100kHz to 400kHz for the high frequency transformer 8, and a frequency of about 3kHz to 10kHz for the low frequency transformer 6.
Select a frequency around Hz. The reflecting surface 1 is provided to concentrate the above-mentioned low-frequency sound waves toward the target water bottom.As an example, when the low-frequency transducer 6 is set to 7.5kHz and the diameter of the reflecting surface 1 is set to 1.2m. It was observed that most of the energy emitted by the sound waves was concentrated within a 20 degree range, similar to the beam of a headlight.
なお高周波トランスジユサ８に200kHz、その
直径を８cmに設定すると、その音波のエネルギー
の大部分が12度の範囲に集中することが認められ
た。 Furthermore, when the high frequency transducer 8 was set at 200 kHz and its diameter was set at 8 cm, it was observed that most of the energy of the sound wave was concentrated within a 12 degree range.
本考案は以上に説明したような構造であるか
ら、支持軸１２をフランジ５に接続して、本考案
をフランジ５より下部が水中に沈むように、かつ
固定軸４が水底面を指向するように、探査作業を
行う船舶などに装備し、リード線９を本考案に適
合した音波のエコー探査用の送受信機に接続す
る。 Since the present invention has the structure as explained above, the support shaft 12 is connected to the flange 5, and the present invention is arranged so that the lower part of the present invention than the flange 5 is submerged in the water, and the fixed shaft 4 is oriented toward the bottom surface of the water. It is installed on a ship or the like that conducts exploration work, and the lead wire 9 is connected to a transmitter/receiver for acoustic wave echo exploration that is compatible with the present invention.
上記の送受信機は少くも、低周波と高周波のト
ランスジユサ６と８に適合した周波数の音波の送
信とエコーの受信能力を持ち、低周波と高周波の
トランスジユサ６と８に戻つてきたエコーを重ね
合わて監視する。 The transceiver described above has at least the ability to transmit sound waves at frequencies compatible with the low-frequency and high-frequency transducers 6 and 8 and receive echoes, and superimposes the echoes returned to the low-frequency and high-frequency transducers 6 and 8. Monitor.
このような監視方法によつて、高周波トランス
ジユサ８のエコーによる水底面の監視と、低周波
トランスジユサ６のエコーによる水底面下の監視
が同時にできる。なお説明を省略したが、低周波
トランスジユサ６を複数設けて、水底下の状況に
応じてその周波数を選定して使用することが可能
なことは、在来の音波によるエコー探査装置と同
様である。 By using such a monitoring method, it is possible to simultaneously monitor the water bottom surface using the echoes of the high frequency transducer 8 and monitor the water bottom surface using the echoes of the low frequency transducer 6. Although the explanation has been omitted, the fact that a plurality of low frequency transducers 6 can be provided and the frequency can be selected and used according to the situation under the water is similar to the conventional echo exploration device using sound waves. .
本考案によれば、上記のように、固定軸４の下
端に低周波トランスジユーサ６の外径よりも大き
い外径をもつ取付板７が設けられ、この取付板７
により低周波トランスジユーサ６と高周波トラン
スジユーサ８とを隔離して固定するとともに、取
付板７の下側に低周波トランスジユーサの内径よ
りも大きい外径をもつ高周波トランスジユーサ８
を取り付けているので、高周波トランスジユーサ
８による高周波の音波ビームを従来のものよりも
鋭いものにして、水中での伝搬能率の低い高周波
側の音波を強くし、探知能力を向上し得るほか、
反射体の構成が、アルミニウムを主材とする金属
板でなる反射面１と、金属またはプラステイクで
なる保護カバー２との間に気泡入りの樹脂材を充
填した構造になつているので、比較的重量が軽
く、取扱作業中などに、誤つて他のものにぶつけ
ても、大切な反射面がたやすく変形させらず、ま
た、反射面が音響特性の異なる材質を重ねた反射
層になつているので、低周波の音波に対する反射
特性をよくし得るなどの特長がある。
According to the present invention, as described above, the mounting plate 7 having an outer diameter larger than the outer diameter of the low frequency transducer 6 is provided at the lower end of the fixed shaft 4.
The low-frequency transducer 6 and the high-frequency transducer 8 are separated and fixed, and the high-frequency transducer 8 having an outer diameter larger than the inner diameter of the low-frequency transducer is installed on the lower side of the mounting plate 7.
Since it is attached, the high frequency sound wave beam produced by the high frequency transducer 8 can be made sharper than the conventional one, and the high frequency sound wave, which has low propagation efficiency in water, can be strengthened, and the detection ability can be improved.
The structure of the reflector is such that a resin material containing bubbles is filled between the reflective surface 1 made of a metal plate mainly made of aluminum and the protective cover 2 made of metal or plastic. The reflective surface is light in weight, and even if you accidentally bump it into something else during handling, the important reflective surface will not be easily deformed, and the reflective surface has a reflective layer made of layers of materials with different acoustic characteristics. Because of this, it has the advantage of improving the reflection characteristics for low-frequency sound waves.
第１図は、一部の断面を示した本考案の側面図
である。第２図は、本考案の下面図である。
１……パラボラに近い曲面の反射面、２……保
護カバー、３……発泡材などよりなる反射材、４
……固定軸、５……フランジ、６……環状の低周
波トランスジユサ、７……取付板、８……板状の
高周波トランスジユサ、９……トランスジユサの
リード線、１０……低周波トランスジユサの発射
音波、１１……高周波トランスジユサの発射音
波、１２……支持軸。
FIG. 1 is a side view of the present invention, showing a partial cross section. FIG. 2 is a bottom view of the present invention. 1... Reflective surface with a curved surface close to a parabola, 2... Protective cover, 3... Reflective material made of foam material, etc., 4
... fixed shaft, 5 ... flange, 6 ... annular low frequency transformer, 7 ... mounting plate, 8 ... plate-shaped high frequency transformer, 9 ... lead wire of transformer, 10 ... firing of low frequency transformer Sound wave, 11... Sound wave emitted from high frequency transducer, 12... Support shaft.
Claims (1)
射面をもつ反射体の前記曲面の焦点付近に配置す
る低周波トランスジユーサを前記反射面の中心に
設けた固定軸によつて支持するとともに、前記固
定軸の下方に前記反射面を介さずに音波を発射す
る高周波トランスジユーサを配置した水中トラン
スジユーサ装置（装置という）であつて、 ａ アルミニウムを主材とする金属板でなる前記
反射面と、前記反射体を保護するための金属ま
たはプラステイク材でなる保護カバーと、前記
反射面と前記保護カバーとの間に充填した気泡
入りの樹脂材でなる反射材とを有する前記反射
体と、 ｂ 前記低周波トランスジユーサの外径よりも大
きい外径をもち、前記固定軸の下端側に設けら
れ、音波の反射材で前記低周波トランスジユー
サと高周波トランスジユーサとを隔離して固定
するための取付板と、 ｃ 前記取付板の下側に固定され、前記低周波ト
ランスジユーサの内径よりも大きい外径をもつ
前記高周波トランスジユーサと を具備することを特徴とする装置。[Claims for Utility Model Registration] A low-frequency transducer placed near the focal point of the curved surface of a reflector having a parabolic curved surface or a curved surface close to this on the inside is attached to a fixed shaft provided at the center of the reflective surface. An underwater transducer device (referred to as the device), which is equipped with a high-frequency transducer that emits sound waves below the fixed shaft and emits sound waves without going through the reflecting surface, the device being: a. mainly made of aluminum; The reflective surface made of a metal plate, a protective cover made of metal or plastic material for protecting the reflector, and a reflective material made of a resin material containing bubbles filled between the reflective surface and the protective cover. b) a reflector having an outer diameter larger than the outer diameter of the low-frequency transducer and provided on the lower end side of the fixed shaft, and a sound wave reflecting material that connects the low-frequency transducer and the high-frequency transformer; a mounting plate for isolating and fixing the transducer; and c. the high frequency transducer fixed to the lower side of the mounting plate and having an outer diameter larger than the inner diameter of the low frequency transducer. A device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7825283U JPS59187285U (en) | 1983-05-26 | 1983-05-26 | Underwater transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7825283U JPS59187285U (en) | 1983-05-26 | 1983-05-26 | Underwater transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59187285U JPS59187285U (en) | 1984-12-12 |
| JPH0438634Y2 true JPH0438634Y2 (en) | 1992-09-09 |
Family
ID=30208255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7825283U Granted JPS59187285U (en) | 1983-05-26 | 1983-05-26 | Underwater transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59187285U (en) |
-
1983
- 1983-05-26 JP JP7825283U patent/JPS59187285U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59187285U (en) | 1984-12-12 |
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