DEVICE TO RESEARCH MAGNETIC PROPERTIES OF MAGNETICS Russian patent published in 2014 - IPC G01R33/12 

FIELD: electricity.

SUBSTANCE: device for research of magnetic properties of magnetics additionally includes: a HF coil L₃ with coupling loops L_c1 and L_c2, besides, L₃ is included into a DRS between the coil L₁ and coil L₂ of a subsequent circuit, and also the second low frequency filter LFF 2, an amplifier-limiter with additional amplifiers ω at its inlet and its outlet, a pre-amplifier of a signal 2ω, the second shaper of a reference signal 2ω (RSS2), and a diode shaper of a reference signal is inductively connected with the coil L₃ of DRS via the coupling coil L_c1, besides, the outlet of the second shaper RSS2 via a switch, HFF 2 and L_c2 is also connected to the coupling L₃, and the inlet RSS2 is connected to the outlet of the amplifier-limiter, to the inlet of which a signal ω is sent from the coupling coil L_c2 of the coil L₃ via the LFF-2, and the phase of the signal is connected to the phase of the harmonic field at the sample, and a pre-amplifier 2ω is connected between the HFF-1 and the receiver 2ω, in which the LF part is replaced with a stable DC amplifier. All contacts between elements within a DRS are soldered.

EFFECT: higher sensitivity of research of magnetic nanoparticles and complex magnetics that test phase transitions or phase separation resulting in coexistence of several magnetic phases.

6 dwg