MAGNETIC CHARACTERISTIC MEASURING DEVICE Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: device affording impact of variable magnetic field on analyzed specimen and recording of hysteresis loop on X-Y display is provided in additional with stroboscope and first low-frequency filter series-connected between field sensor and X-input of X-Y display, correction circuit, and differential amplifier whose inputs are connected to output of signal amplifier, series-connected selective amplifier, synchronous detector, and second low-frequency filter, as well as low-frequency oscillator. One-short multivibrator and divider whose inputs are connected to outputs of low-frequency filters and output, to Y-input of X-Y display may be introduced to record differential magnetic susceptibility. EFFECT: provision for recording hysteresis loops and differential susceptibility. 3 cl, 4 dwg