摘要 |
PURPOSE: A system is provided to easily detect defects of the produced ferrite core by measuring characteristics of the produced ferrite core and detecting the dispersion of the relevant ferrite core. CONSTITUTION: A system comprises an oscillation unit(10) for generating an AC power of a preset frequency band; a magnetic permeability detection unit(20) wound along the objective ferrite core, and which takes, as an input, the AC power oscillated from the oscillation unit, forms a magnetic field along the objective ferrite core, and detects the degree of changes of the magnetic field passing through the objective ferrite core; an amplifier(30) for taking, as an input, values from the magnetic permeability detection unit, and amplifying the received values; a band-pass filter(40) for removing noises from the signal amplified by the amplifier, and outputting the signal where noises are removed; a digital signal generating unit including a root mean square(50) and an ADC(60), wherein the digital signal generating unit receives, through the band-pass filter, the signal where noises are removed, converts the received signals into a digital signal, and outputs the digital signal; and a computer(70) for displaying, on a monitor, the data output from the digital signal generating unit, and storing the relevant data if needed.
|