APPARATUS FOR DETECTING NONLINEAR MAGNETIC PATICLE BASED ON SIGNAL EXCITATION COIL AND METHOD USING THE SAME

摘要

A non-linear magnetic particle detection apparatus and method based on a single excitation coil is disclosed. The nonlinear magnetic particle detecting apparatus according to the present invention includes: a signal generator for generating an input mixed signal by mixing a high-frequency sinusoidal signal and a low-frequency sinusoidal signal generated based on a fundamental frequency; A signal applying unit for applying an input mixing signal to one excitation solenoid coil included in the measuring head; And an output signal emitted by the sample based on the magnetic field is detected using at least one detection solenoid coil included in the measurement head and the frequency domain of the output signal is analyzed to determine whether or not non-linear magnetic particles exist in the sample And a detection unit for detecting the signal.