JPS58168983A - Submarine investigating device - Google Patents
Submarine investigating deviceInfo
- Publication number
- JPS58168983A JPS58168983A JP57051876A JP5187682A JPS58168983A JP S58168983 A JPS58168983 A JP S58168983A JP 57051876 A JP57051876 A JP 57051876A JP 5187682 A JP5187682 A JP 5187682A JP S58168983 A JPS58168983 A JP S58168983A
- Authority
- JP
- Japan
- Prior art keywords
- machine
- investigating
- sonar
- towed
- geosoner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Oceanography (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は海底調査装置に関し、より特別には超音波機器
を使用して海底地質を調査する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for investigating the ocean floor, and more particularly to an apparatus for investigating the geology of the ocean floor using ultrasonic equipment.
従来、地質調査用の超音波機器すなわちジオソーナを使
用して海底地質を調査するには、曳船により該ジオソー
ナを包蔵せるフイラスが海表面もしくは海中を走行する
とと（該フイラスを曳航し、ジオソーナより海底面に対
し垂直に超音波を送信し、反射波を受信することにより
海底地質の変化つで観察［−てきた。しかしながら、上
記従来の方法では海中を往復伝播する超音波の減衰量が
太ぎいために該減衰量を見込んだ大きな超音波出方が必
すとされろ。また、このように海底面より相当離、）シ
ｒこ位置にあるジオソーナから人出方の超音波を送信し
て行う方法は、海底下数百メートルの地質を観察するよ
うな精度の粗い調査は可能であるが、例えばケーブル埋
設の可−否を判断すべ（海底下１〜２メートルの地質を
観察するごとき精度の細い調査をｒテうことはできない
。Conventionally, in order to investigate the geology of the ocean floor using an ultrasonic device for geological surveys, that is, a geosoner, the filus containing the geosoner is run on the sea surface or underwater by a towboat (the filasse is towed, By transmitting ultrasonic waves perpendicular to a surface and receiving the reflected waves, changes in seafloor geology have been observed. Therefore, it is necessary to have a large ultrasonic wave output that takes into account the amount of attenuation.In addition, it is necessary to transmit ultrasonic waves in the direction of people from a geosoner located at a considerable distance from the ocean floor. Although it is possible to conduct surveys with rough precision, such as observing the geology several hundred meters below the seabed, it is also possible to conduct surveys with low precision, such as observing the geology 1 to 2 meters below the seafloor. It is not possible to conduct a thorough investigation.
本発明は上記従来の欠点を除去すべ（なされたものであ
−って、このため本発明は
曳船によりジオソーナを曳航し、該ジオンーナより海底
面に向は超音波を送信し、反射波を受信して海底地質を
調査する海底調査装置において、前記ジオンーナを曳船
により牽引されて海底面上を滑走する調査機に搭載した
ことを特徴とする。The present invention has been made to eliminate the above-mentioned drawbacks of the conventional technology.For this purpose, the present invention involves towing a geosoner by a tugboat, transmitting ultrasonic waves from the geosoner toward the ocean floor, and receiving reflected waves. A submarine survey device for investigating the geology of the seabed is characterized in that the geona is mounted on a surveying machine that is towed by a tugboat and slides on the seabed surface.
以下、本発明の一実施例を添附図に沿って説明−ｒる。An embodiment of the present invention will be described below with reference to the accompanying drawings.
図は本発明の一実施例料示す概略図で、図において１は
図示しない海水面上の曳船より牽索２を介して牽引され
海底面３上を滑走する＄ａ状の調査機、４は該調査機に
昇降可能に設けられ海ゾ（に突出可能な鋤掘削式硬さ測
定装置、５は調査機１上のウィンチ６にケーブル７を介
して連結された曳航ブイ、８は該曳航ブイ５より曳航ケ
ーブル９を介して牽引されろ海底地形調査用の超音波機
器すなわちサイドソナーのフイシュ、１０は調査機１よ
り曳行索１１を介して牽引され海底面上を滑走する揚状
の磁気探査機である。The figure is a schematic diagram showing an embodiment of the present invention. In the figure, 1 is a $A-shaped survey aircraft that is towed by a tugboat on the sea surface (not shown) via a tug 2 and slides on the seabed 3, and 4 is a A plow excavation type hardness measuring device that is installed on the surveying machine so that it can be raised and lowered and that can be projected into the ocean; 5 is a towing buoy that is connected to a winch 6 on the surveying machine 1 via a cable 7; 8 is the towing buoy; 5 is a towed ultrasonic device for underwater topography survey, ie a side sonar fish, which is towed from 5 via a towing cable 9; 10 is a lift-shaped magnetic surveying device which is towed by a surveying device 1 via a towing cable 11 and glides over the seafloor surface; It is a machine.
しかして、本発明においては、図示のように、海底地質
調査用のジオソーナ１２を調査機１上に搭載し、海底面
に近接した位置から超音波を送受信するようにした。ジ
オソーナ１２は海底面に対し直接かつ垂直に超音波が送
受信されるように調査機上に配置されろ。該ジオソーナ
１２の周波数は海底下２ｍ以浅の底質変化を判別するに
ｉま５Ｋｌ（ｚ前後とされ、２〜６種の周波数に切替可
能とすることが好ましい。これらジオソーナからの超音
波の送受信および周波数の切替えは図示しないコントロ
ールグープルを介して曳船上より行われろ。Therefore, in the present invention, as shown in the figure, a geosoner 12 for seabed geological survey is mounted on the surveying device 1, and ultrasonic waves are transmitted and received from a position close to the seabed surface. The geosoner 12 is placed on the survey vehicle so that ultrasonic waves are transmitted and received directly and perpendicularly to the seafloor surface. The frequency of the geosonar 12 is set to be around 5Kl (z) for determining changes in bottom sediment at a depth of 2 m or less below the seafloor, and it is preferable to be able to switch between 2 to 6 different frequencies. And frequency switching is performed from the towboat via a control group (not shown).
なお、受信信号の処理は曳゛船上にて公知の方法で行う
ことができる。このようにジオソーナを海底面上を滑走
する調査機上に塔載することにより従来のように海中を
伝播する際の超音波の大きな減衰がないのでジオソーナ
の出力を大巾に低減させろことができ、またこのように
ジオソーナを海底面より至近距離に位置させ小さな出力
にて行うことにより精度の細い調査が可能となり、海底
下１〜２ｍの底質変化を判別することができる。Incidentally, the processing of the received signal can be performed onboard the towboat using a known method. In this way, by mounting the geosoner on a research aircraft that glides over the ocean floor, there is no large attenuation of ultrasonic waves when they propagate underwater, as in conventional methods, and the output of the geosoner can be significantly reduced. In addition, by positioning the geosoner at a close distance from the seabed surface and using a small output power, it is possible to perform highly accurate surveys, and it is possible to determine changes in the bottom sediment 1 to 2 meters below the seafloor.
なお、上記硬さ測定装置４は鋤前面に土圧計測用の圧力
センサを埋込み、鋤に加わる土圧を測定することにより
硬さを判定するもので、圧力センサを上下に複数個設け
ることにより掘削深さに対応した硬さの判定が可能であ
る。また、上記サイドソーナのフイシュ８はウィンチ６
を巻戻すことにより海底面から一定高さで曳航されるも
ので、■
調査機１の速度が変化してもサイドソーナ８の高さが変
化しないように曳航ブイ５を先行させている。さらに、
上記磁気探査装置１０はフラックスゲート方式の磁気探
知器１０ａを複数個並べて非金属材料を主体とｔ７たｍ
１０ｂに搭載したものである。これら硬さ測定装置４、
サイドソーナ８および磁気探知器１０は上記ジオソーナ
１２と組合わせて海底地質、硬さ、地形および磁気探査
を同時に行うことができる。The hardness measuring device 4 has a pressure sensor for measuring soil pressure embedded in the front surface of the plow, and determines the hardness by measuring the soil pressure applied to the plow. It is possible to judge the hardness according to the excavation depth. Also, the fish 8 of the side sonar mentioned above is the winch 6.
The towing buoy 5 is placed in front so that the height of the side sonar 8 does not change even if the speed of the research aircraft 1 changes. moreover,
The above-mentioned magnetic exploration device 10 is constructed by arranging a plurality of magnetic detectors 10a of the fluxgate type and using non-metallic materials as the main material.
This is what was installed on the 10b. These hardness measuring devices 4,
The side sonar 8 and the magnetic detector 10 can be combined with the geosoner 12 to simultaneously conduct seabed geology, hardness, topography, and magnetic exploration.
以上のように、本発明によれば小出力でかつ精度のよい
海底調査装置が得られる。As described above, according to the present invention, it is possible to obtain a low-output, high-precision submarine survey device.
第１図は本発明の一実施例を示す概略側面図、第２図は
同平面図である。
１・・・調査機、 １２・・・ジオソーナ。
特許出願人 住友電気工業株式会社
同 住友重機械工業株式会社FIG. 1 is a schematic side view showing one embodiment of the present invention, and FIG. 2 is a plan view thereof. 1...Research machine, 12...Geosona. Patent applicant: Sumitomo Electric Industries, Ltd. Sumitomo Heavy Industries, Ltd.
Claims (1)
面に向は超音波を送信し、反射波を受信して海底地質を
調査する海底調査装置において、前記ジオソーナを曳船
により牽引されて海底面上を滑送する調査機に搭載した
ことを特徴とする海底調査装置。In an undersea survey device, a geosoner is towed by a tugboat, and the geosoner transmits ultrasonic waves toward the ocean floor and receives reflected waves to investigate the geology of the ocean floor. An underwater survey device characterized by being installed on a survey aircraft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051876A JPS58168983A (en) | 1982-03-30 | 1982-03-30 | Submarine investigating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051876A JPS58168983A (en) | 1982-03-30 | 1982-03-30 | Submarine investigating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58168983A true JPS58168983A (en) | 1983-10-05 |
Family
ID=12899077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57051876A Pending JPS58168983A (en) | 1982-03-30 | 1982-03-30 | Submarine investigating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168983A (en) |
-
1982
- 1982-03-30 JP JP57051876A patent/JPS58168983A/en active Pending
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