Electrical current sensor

A first magnetic flux sensor (22) is disposed in a magnetic field (14, 16) emanating from an electrical conductor. A second magnetic flux sensor (24) is also disposed in the magnetic field (14, 16) emanating from the electrical conductor. The second magnetic flux sensor (24) is spaced further from the conductor than the first magnetic flux sensor (22). The ratio output of the two magnetic flux sensors (22, 24) will remain constant as long as the two magnetic flux sensors are not exposed to extraneous magnetic fields. When the two magnetic flux sensors (22, 24) are exposed to extraneous magnetic fields, the ratio between the outputs from the two magnetic flux sensors will change. This enables controls (38) connected with the two magnetic flux sensors (22, 24) to determine whether a change in the strength of the magnetic field sensed by the two magnetic flux sensors is due to a change in electrical current being conducted through the conductor or due to exposure of the sensors to extraneous magnetic fields. The difference of the output of the two magnetic flux sensors (22, 24) will be proportional to the current in the electrical conductor and independent of the extraneous magnetic flux produced by an external source.