JPS641994A - Measuring method for wave height - Google Patents
Measuring method for wave heightInfo
- Publication number
- JPS641994A JPS641994A JP15654887A JP15654887A JPS641994A JP S641994 A JPS641994 A JP S641994A JP 15654887 A JP15654887 A JP 15654887A JP 15654887 A JP15654887 A JP 15654887A JP S641994 A JPS641994 A JP S641994A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- wave
- wave height
- time
- height
- 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
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To measure a wave height with high reliability, by measuring the wave height with time by means of an ultrasonic wave which is transmitted in three directions by an ultrasonic echo sounder transducer held at a prescribed position under the surface of water. CONSTITUTION:An ultrasonic sonar 3 is provided with three sets of ultrasonic echo sounder transducers which transmit ultrasonic waves for measuring a wave height in three directions different from one another, respectively. A wave W advances along an advance line 9 perpendicular to the edge line 8 thereof and passes points C, A and B in this order. The height of the passing wave is detected with time by ultrasonic beams 7, 5 and 6 and a waveform is sensed therefrom. In order to avoid the mutual interference of the three ultrasonic beams 5, 6 and 7, a time difference is provided among the time points of transmission of the beams. By this method, the wave height is measured with high reliability.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156548A JPH011994A (en) | 1987-06-25 | Wave direction measurement method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-156548A JPH011994A (en) | 1987-06-25 | Wave direction measurement method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS641994A true JPS641994A (en) | 1989-01-06 |
JPH011994A JPH011994A (en) | 1989-01-06 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8011098B2 (en) * | 2008-08-19 | 2011-09-06 | Vorhies Roger W | Wind turbine erector |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8011098B2 (en) * | 2008-08-19 | 2011-09-06 | Vorhies Roger W | Wind turbine erector |
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