DEPTH-MEASURING METHOD AND DEVICE

PROBLEM TO BE SOLVED: To provide a depth-measuring method and device for continuously and accurately performing survey in a limited range by rotating a multi-beam depth-measuring sonar and at the same time measuring the rotary angle and position using two real-time kinematic GPSs. SOLUTION: While th...

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Bibliographische Detailangaben
Hauptverfasser:	MASUDA MINORU, MIZUKAWA TATSUYA, IMAMURA KAZUNORI
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a depth-measuring method and device for continuously and accurately performing survey in a limited range by rotating a multi-beam depth-measuring sonar and at the same time measuring the rotary angle and position using two real-time kinematic GPSs. SOLUTION: While the rotary angle and position of a shaft 2 are measured by the two real-time kinematic GPSs mounting two antennas 3 on the two upper parts of the rotatable shaft 2 that is provided at one location of a float such as a moored barge 1, the depth of a body of water in the limited range is continuously measured by a multi-beam depth-measuring device 4 that is mounted to the lower part of the underwater on the shaft 2, and the value of the depth to be measured is corrected by an oscillation correction device 5 that is mounted to the shaft.