The device for measuring the vector module of magnetic field

The development of block-diagram portable receiving device with microcontroller processing radio signal parameters received is proposed in the paper. coupled to a three-coordinate magnetic antenna, which allows reception field three spatial components order measure amplitude each component field. geometric sum modules intensity vectors gives final vector module strength, helps localize object, that is, determine distance it by method. amplifiers controlled gain factors allow increase and maintain near maximum dynamic range ADC provide most accurate measurement low-voltage amplitudes. An algorithm for calculating square root integer values presented, necessary calculate strength using measuring devices based on microcontrollers low computational power. Finding number done sequentially sorting numbers squaring them until resulting matches original under value. This method implemented cyclic shift bit corresponding binary representation number. effect common ferrite core orthogonal orthogonally located finite inductors analyzed.