JPH0140924B2 - - Google Patents
Info
- Publication number
- JPH0140924B2 JPH0140924B2 JP56135633A JP13563381A JPH0140924B2 JP H0140924 B2 JPH0140924 B2 JP H0140924B2 JP 56135633 A JP56135633 A JP 56135633A JP 13563381 A JP13563381 A JP 13563381A JP H0140924 B2 JPH0140924 B2 JP H0140924B2
- Authority
- JP
- Japan
- Prior art keywords
- wave
- buoy
- water surface
- pressure gauge
- cable
- 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
- 238000005259 measurement Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 241000219793 Trifolium Species 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/002—Measuring the movement of open water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Description
【発明の詳細な説明】
本発明は波浪の波高と波向の両方を計測する波
浪計測装置に関し、特に、従来のものに比べて構
造が簡単でより小型化することができ、しかも安
定した精度が得られる波浪計測装置に関する。[Detailed Description of the Invention] The present invention relates to a wave measuring device that measures both wave height and wave direction, and in particular, has a simpler structure and can be made more compact than conventional devices, and has stable accuracy. This invention relates to a wave measurement device that can obtain the following.
波浪の波高と波向は、それぞれ波浪による水面
変位と水面傾斜を計測すれば得られるものであ
る。従来の波浪計において、水面変位を測定する
方法は加速度計によるものと、吊り下げ式圧力計
によるものがある。 Wave height and wave direction can be obtained by measuring the water surface displacement and water surface slope caused by waves, respectively. In conventional wave meters, water surface displacement can be measured using accelerometers or hanging pressure gauges.
前者は、加速度計をジンバル又はバーテイカル
ジヤイロに取り付けてブイの鉛直方向の加速度を
計り、その加速度信号を2回積分することによつ
て、水面変位を求めるものである。 The former method measures the vertical acceleration of a buoy by attaching an accelerometer to a gimbal or vertical gyroscope, and then integrates the acceleration signal twice to determine water surface displacement.
また、後者はブイから圧力計を吊り下げ、その
圧力計がブイと同じように上下することによつて
圧力変化を測定し、その変化から水面変位を求め
るものである。前述した説明から示されるように
水面変位を求める場合、吊り下げ式圧力計による
方法は加速度計の方法に比べて、圧力計を波浪の
影響が比較的に少ない深さまで吊りさげなければ
ならない欠点があるが、より簡単な装置であるこ
と、波圧による雑音がほとんどないことそして比
較的簡単な解析で処理できることの長所がある。 The latter method involves suspending a pressure gauge from a buoy, measuring pressure changes by moving the pressure gauge up and down in the same way as the buoy, and determining water surface displacement from the changes. As shown from the above explanation, when determining water surface displacement, the method using a hanging pressure gauge has the disadvantage, compared to the method using an accelerometer, that the pressure gauge must be suspended to a depth where it is relatively less affected by waves. However, it has the advantages of being a simpler device, having almost no noise due to wave pressure, and being able to be processed with relatively simple analysis.
一方、水面傾斜を測定する方法はバーテイカ
ル・ジヤイロによるものと重力利用型の傾斜計に
よるものがある。 On the other hand, there are two ways to measure water surface slope: a vertical gyroscope and a gravity-based inclinometer.
前者は測定精度において優れているが比較的大
きな電力が必要でかつ高価なものとなる欠点を有
しており、後者は振り子型のような比較的簡単な
装置のものが多く用いられているが、波浪の水平
方向の運動や波圧による雑音を受けやすく、まだ
十分な安定した精度のものになつていない。 The former has excellent measurement accuracy, but has the drawback of requiring relatively large amounts of power and being expensive, while the latter is often used with relatively simple devices such as pendulum type devices. , it is susceptible to noise caused by the horizontal movement of waves and wave pressure, and has not yet achieved sufficient stability and accuracy.
上述したことから現在よく用いられている波高
と波向の両方を精度よく測定できる波浪計は、加
速度計とバーテイカル・ジヤイロを組み合せた方
式のものと言え、その代表的なものとしてピツチ
ロール型ブイとクローバー型ブイがある。 From the above, it can be said that the currently commonly used wave meters that can accurately measure both wave height and wave direction are those that combine an accelerometer and a vertical gyroscope, and the typical example is the pitcherol type buoy. There is a clover shaped buoy.
しかしながら、この方式はすでに示したように
水面変位を求めるには加速度信号を2回積分しな
ければならないこと、そのために低周波の雑音を
受けやすいこと、ジヤイロを使うために構造が複
雑となり高価なものとなることなどの欠点をも
つ。 However, as already mentioned, this method requires integrating the acceleration signal twice to determine the water surface displacement, is susceptible to low-frequency noise, and uses a gyroscope, making the structure complicated and expensive. It has disadvantages such as becoming a thing.
本発明はこれらの欠点をできるだけ除く波浪計
測装置を提供することを目的とするものである。 It is an object of the present invention to provide a wave measuring device that eliminates these drawbacks as much as possible.
この目的を達成するために、本発明の波浪計測
装置は波高測定用として吊り下げ式圧力計を採用
し、この圧力計を吊り下げたケーブルの他端を2
軸ジンバルを介して、波面をよく追従するブイに
取り付けることによつて、波浪の水面変位と水面
傾斜を同時に測定するものである。 In order to achieve this objective, the wave measuring device of the present invention employs a hanging pressure gauge for wave height measurement, and connects the other end of the cable that suspends this pressure gauge to two
By attaching it to a buoy that closely follows the wave surface via an axial gimbal, the water surface displacement and water surface slope of waves can be measured simultaneously.
次に本発明の実施例を図面を参照して具体的に
説明する。 Next, embodiments of the present invention will be specifically described with reference to the drawings.
図中、2は円盤形のブイで、下部中央に設けた
凹部9内に2軸ジンバル3を取り付け、この2軸
ジンバル3の中心からケーブル6を吊り下げ、そ
の先端に錘7と圧力計8とを取り付ける。 In the figure, 2 is a disc-shaped buoy, and a 2-axis gimbal 3 is installed in a recess 9 provided at the center of the bottom, a cable 6 is suspended from the center of the 2-axis gimbal 3, and a weight 7 and a pressure gauge 8 are attached to the tip of the buoy. and attach it.
そして、2軸ジンバル3の各軸にはポテンシヨ
メータよりなる傾斜検出計を設ける。5は蛇腹状
の防水膜で、ブイ2の凹部9とケーブル6との間
に配設されてジンバル部に対する海水の侵入を防
止する。4はブイ2の上面に設けたコンパスであ
る。 Each axis of the two-axis gimbal 3 is provided with a tilt detector consisting of a potentiometer. A bellows-shaped waterproof membrane 5 is disposed between the recess 9 of the buoy 2 and the cable 6 to prevent seawater from entering the gimbal section. 4 is a compass provided on the top surface of the buoy 2.
次に、作用について説明すると、波面の変化に
よつてブイ2が上下し、ジンバル3、ケーブル6
を介して圧力計8も上下する。したがつて、圧力
計8による圧力測定で水面変位が計測できる。 Next, to explain the action, the buoy 2 moves up and down due to changes in the wave front, and the gimbal 3 and cable 6
The pressure gauge 8 also moves up and down. Therefore, water surface displacement can be measured by pressure measurement using the pressure gauge 8.
また、ケーブル6は鉛直になつており、ブイ2
はその水平面が波面1と平行になつているので、
ケーブル6の軸線すなわち鉛直線と波面1すなわ
ちブイ2の水平面との角度は2軸ジンバル3の各
軸に設けたポテンシヨメータよりなる傾斜検出計
によつてこれを測定できる。 In addition, the cable 6 is vertical, and the buoy 2
Since its horizontal plane is parallel to wavefront 1,
The angle between the axis of the cable 6, that is, the vertical line, and the wave surface 1, that is, the horizontal plane of the buoy 2, can be measured by a tilt detector consisting of a potentiometer provided on each axis of the two-axis gimbal 3.
以上に述べたように、本発明は吊り下げ式圧力
計のケーブルが波浪による水面変位があつた時で
も安定した鉛直性を有していることを利用して、
水面傾斜を測定するものであり、圧力計を吊るし
たケーブルを2軸ジンバルを介して波面をよく追
従するブイに取り付けて、波浪の波高と波向の両
方を同時に測定することにより、水面変位に関し
て2回積分する必要はなくなり、波圧による雑音
の影響も小さく、水面傾斜に関してはよく用いら
れている2軸ジンバル機構を使用するだけである
ので構造は簡単となり安価である。 As described above, the present invention takes advantage of the fact that the cable of a hanging pressure gauge has stable verticality even when the water surface is displaced by waves.
It measures the water surface inclination, and by attaching a cable with a pressure gauge suspended to a buoy that closely follows the wave surface via a two-axis gimbal and simultaneously measuring both the wave height and wave direction, it is possible to determine the water surface displacement. There is no need to integrate twice, the influence of noise due to wave pressure is small, and the structure is simple and inexpensive because a commonly used two-axis gimbal mechanism is used for water surface inclination.
なお、本発明による水面傾斜の測定においても
波浪の水平方向の運動や波圧による雑音の影響を
受けるが、実験室の水槽実験によれば、次のよう
な工夫によつてこれらの雑音の影響を軽減させる
ことができる。 Note that the measurement of water surface slope according to the present invention is also affected by noise caused by the horizontal motion of waves and wave pressure, but according to laboratory tank experiments, the effects of these noises can be reduced by the following measures. can be reduced.
第1に圧力計のところに錘をつけてより安定し
た鉛直性をつけることにより、高周波の横揺と縦
揺が少くなり、かつ従来の同じような形をした円
盤型のピツチロール型ブイよりも安定したブイと
なる。 First, by attaching a weight to the pressure gauge to provide more stable verticality, high-frequency rolling and pitching buoys are reduced, and it is more effective than conventional disc-shaped pitcherol type buoys. It becomes a stable buoy.
第2に漂流状態にした船又は海底に錨で留めた
ブイに波浪計のブイを係留して観測を行うことに
より、波浪計はほとんどの場合波浪の進行方向に
流れ、係留用のロープは緩まず常に張ることにな
り、その結果波浪による波浪計のブイの水平の動
きが抑制される。 Second, by mooring the wave meter's buoy to a drifting ship or a buoy anchored to the seabed, the wave meter's buoy will almost always flow in the direction of the waves, and the mooring rope will be loose. First, it is always tensioned, and as a result, the horizontal movement of the wave gauge buoy due to waves is suppressed.
図面は本発明の一実施例を説明する概略正面図
である。
1…波浪の波面、2…円盤型ブイ本体、3…2
軸ジンバル、4…コンパス、5…蛇腹状の防水
膜、6…圧力計吊り下げケーブル、7…錘、8…
圧力計、9…凹部。
The drawing is a schematic front view illustrating an embodiment of the present invention. 1...Wave surface of waves, 2...Disc-shaped buoy body, 3...2
Axial gimbal, 4... Compass, 5... Bellows-shaped waterproof membrane, 6... Pressure gauge hanging cable, 7... Weight, 8...
Pressure gauge, 9... recess.
Claims (1)
け該ケーブルの先端に圧力計を吊るすと共にブイ
上にコンパスを取り付け、2軸ジンバルの各軸と
ケーブルとの間に傾斜検出計を取り付けたことを
特徴とする波浪計測装置。1 A cable is attached to the buoy via a two-axis gimbal, and a pressure gauge is hung from the tip of the cable, a compass is attached to the buoy, and an inclination detector is attached between each axis of the two-axis gimbal and the cable. wave measurement device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13563381A JPS5837508A (en) | 1981-08-31 | 1981-08-31 | Wave measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13563381A JPS5837508A (en) | 1981-08-31 | 1981-08-31 | Wave measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5837508A JPS5837508A (en) | 1983-03-04 |
JPH0140924B2 true JPH0140924B2 (en) | 1989-09-01 |
Family
ID=15156363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13563381A Granted JPS5837508A (en) | 1981-08-31 | 1981-08-31 | Wave measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5837508A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106092062A (en) * | 2016-06-01 | 2016-11-09 | 国家海洋局第海洋研究所 | The straits water flux observation procedure measured based on faradic current |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6117615U (en) * | 1984-07-06 | 1986-02-01 | 運輸省第一港湾建設局長 | wave observation device |
JPS61254814A (en) * | 1985-05-08 | 1986-11-12 | Shipbuild Res Assoc Japan | Wave detector |
JPH0545927Y2 (en) * | 1987-06-04 | 1993-11-30 | ||
CN107554709A (en) * | 2017-09-22 | 2018-01-09 | 镇江和瑞环境技术有限公司 | A kind of unmanned surveying vessel with warning function |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3534599A (en) * | 1968-04-12 | 1970-10-20 | Us Navy | Expendable ocean-wave meter |
JPS6140350A (en) * | 1984-07-31 | 1986-02-26 | Osaka Soda Co Ltd | Chlorinated polyolefin composition |
-
1981
- 1981-08-31 JP JP13563381A patent/JPS5837508A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3534599A (en) * | 1968-04-12 | 1970-10-20 | Us Navy | Expendable ocean-wave meter |
JPS6140350A (en) * | 1984-07-31 | 1986-02-26 | Osaka Soda Co Ltd | Chlorinated polyolefin composition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106092062A (en) * | 2016-06-01 | 2016-11-09 | 国家海洋局第海洋研究所 | The straits water flux observation procedure measured based on faradic current |
Also Published As
Publication number | Publication date |
---|---|
JPS5837508A (en) | 1983-03-04 |
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