AID MEASURING VARIABLE MAGNETIC FIELD OF FLOATING CRAFT Russian patent published in 1999 - IPC

FIELD: electric measurement technology. SUBSTANCE: aid includes transmitter lowered on to floor of water area and made of three mutually orthogonal sensitive elements. Each of them is connected to proper normalizing amplifiers, converters of root-mean-square values, information displays connected in series. Aid also has orientation device two outputs of which are connected to controlling inputs of corresponding normalizing amplifiers, digital indicator of octant number, three formers, two OR-ELSE gates, two inverters and four AND circuits. Formers are coupled to proper normalizing amplifiers and OR-ELSE gates which are linked via inverters and directly to AND circuits connected to digital indicator of octants. EFFECT: determination of direction of measured magnetic induction relative to system of coordinates of controlled floating craft. 1 dwg, 1 tbl