Magnetoelectric sensor is a new type of highly sensitive sensor based on the magnetoelectric effect of heterojunction composite materials. Magnetoelectric effect is a new composite effect based on piezoelectric effect of piezoelectric materials and piezomagnetic effect of piezomagnetic materials through the mechanical transmission of the interface of the two materials. After years of theoretical research and experimental optimization, the detection limit of magnetoelectric sensor has reached the pT level.

Low power consumption

Different from the working mode of magnetometers requiring high power excitation such as fluxgate and optical pump, magnetoelectric coupling effect directly converts the external magnetic field into electrical output in a passive way through the conversion between the "magnetic-force-electric" physical field, realizing the conversion of pure passive magnetic field to electric field with zero power consumption, and the rear end is equipped with ultra-low power charge amplification circuit, which can realize the magnetically sensitive probe with near zero power consumption.

Low cost

Thanks to the principle advantage of magnetoelectric coupling effect, the magnetoelectric sensor from the composition of functional materials, circuit design to electronic packaging several key links are relatively simple, without ultra-low temperature working environment, compared with the magnetic bar, optical pump, superconducting quantum interferometer, etc., the production and operating costs are lower, suitable for large-scale networking detection applications.