TOP > 外国特許検索 > DC MAGNETIC FIELD MAGNETIC PROFILE MEASURING DEVICE AND MAGNETIC PROFILE MEASURING METHOD
This DC magnetic field magnetic profile measuring device obtains magnetic field distribution images on the surface of an observation sample using magnetic field amplitude and phase data obtained by scanning a scanning region. This magnetic profile measuring device (1) is provided with a cantilever (11), an exciter (12) which excites the cantilever at the resonant frequency or a frequency close thereto, an AC magnetic field generator (13) which frequency-modulates the excitation frequency of the cantilever, a vibration sensor (14) which detects vibration by means of a probe, a demodulation processing device (15) which demodulates the magnetic signal corresponding to the AC magnetic force generated between the probe and the observation sample and detects the amplitude and phase of the magnetic field, a scanning mechanism (16) which scans the scanning region with the probe, a data storage device (17) which stores as initial data the amplitude and phase of the magnetic field at each coordinate of the scanning region, a modified data generator (18) which, from the initial data, generates data with a modified phase, and an image display device (19) which displays a magnetic field distribution image based on the changed data.
