FIELD: invention refers to mode and system for definition of height of surface of liquid column over sensor and may be used at collecting sea seismic data.
SUBSTANCE: one or several sensors are placed inside liquid column. At that one or each sensor is sensitive to waves of pressure on frequencies below approximately of 1 Hz. They collect with aid of indicated sensor or sensors data about pressure in frequency range 0,03-1 Hz. They process collected data for receiving information about height of surface of liquid column over one or over every sensor.
EFFECT: increases accuracy of measurements.
26 cl, 8 dwg
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