Rectangular shunt with measurement compensation system

摘要

In order to reduce errors between the measured current by a rectangular shunt and the shunt output signal voltage, such errors being due primarily to skin effect and the proximity of the shunt to the current circuit to be measured, the present invention proposes a shunt having a measuring system which compensates for these error causing effects. The shunt utilizes a measurement circuit following a path which reduces the difference between the potential produced across the shunt and the form of a current which passes therethrough. The path of the measuring circuits starts from the center of the resistive material of the shunt and progresses towards the outer surface of the resistive material in accordance with a function which is non-monotonic and which can even follow a curved path. More particularly, the shunt has a rectangular geometry to permit the maximum heat dissipation which is produced by the shunt in its continuous operating mode under ambient conditions.