| 摘要 |
PROBLEM TO BE SOLVED: To provide a device, system, and method, which allow for accurately determining magnetic field and other parameters related to main electrical power conductors.SOLUTION: A magnetic field sensing device comprises two or more magnetic field sensors 641, 642, a phase detector 651 electrically coupled to outputs of the magnetic field sensors 641, 642, and a phase indicator 619 electrically coupled to the phase detector 651. The phase indictor 651 includes a display that indicates when the magnetic field sensors 641, 642 are in predetermined positions in relation to the current carrying conductor, and is configured to determine when a phase angle of a first signal of the first magnetic field sensor 641 is 180 degrees out of phase with a phase angle of a second signal of the second magnetic field sensor 642. The two or more magnetic field sensors are linearly arrayed, and include multiplexers electrically coupled to the magnetic field sensors and a processor configured to control the multiplexers.SELECTED DRAWING: Figure 6 |
