STATIC METHOD OF DETERMINING GRAVITATIONAL ACCELERATION AT SEA Russian patent published in 2012 - IPC G01V9/00 

FIELD: physics.

SUBSTANCE: static method of determining gravitational acceleration at sea involves measuring a parameter which characterises movement of the movable element of the elastic system of a gravimetre relative the initial position on a gravimetric reference and at determined points, determining drift correction of the gravimetre, determining the increment of the measured parameter through calibration at the reference gravimetric point corresponding to the known increment of gravitational acceleration and calculating the unknown value of gravitational acceleration from the obtained data. The method is characterised by that in order to determine drift correction of the gravimetre, the length of the sensitive element of the elastic system of the gravimetre is further measured when the movable element is at maximum deviation from the initial position and at the initial position, and the increment of the length of the sensitive element of the elastic system of the gravimetre is determined through calibration at the reference gravimetric point which corresponds to the known increment of gravitational acceleration.

EFFECT: simple process of determining gravitational acceleration at sea and high accuracy and efficiency thereof.

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