JPS641994A - Measuring method for wave height - Google Patents

Measuring method for wave height

Info

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
Application number
JP15654887A
Other languages
Japanese (ja)
Other versions
JPH011994A (en
Inventor
Yukiji Morita
Hiroshi Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marine Instr Co Ltd
Original Assignee
Marine Instr Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marine Instr Co Ltd filed Critical Marine Instr Co Ltd
Priority to JP62-156548A priority Critical patent/JPH011994A/en
Priority claimed from JP62-156548A external-priority patent/JPH011994A/en
Publication of JPS641994A publication Critical patent/JPS641994A/en
Publication of JPH011994A publication Critical patent/JPH011994A/en
Pending legal-status Critical Current

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.
JP62-156548A 1987-06-25 Wave direction measurement method Pending JPH011994A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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