CALIBRATION OF PRESSURE GRADIENT RECORDS Russian patent published in 2012 - IPC G01V1/00 

FIELD: physics.

SUBSTANCE: method of calculating pressure signal gradient involves placing a cable with at least one device for measuring pressure signal gradient, wherein each device for measuring pressure signal gradient has a first receiver, a second receiver and a third receiver arranged in a cluster in a triangular configuration; a plurality of pressure signals is recorded at the first receiver, the second receiver and third receiver; and the pressure signal gradient between pressure signals recorded at the fist receiver, pressure signals recorded at the second receiver and pressure signals recorded at the third receiver is calculated.

EFFECT: improved method of calculating pressure signal gradient by reducing noise after the signal when estimating pressure gradient and by increasing signal strength as the distance between the receivers falls.

29 cl, 5 dwg