Fan-shaped scanning magneto-acoustic-electric imaging device and method based on ultrasonic excitation

The invention relates to a fan-shaped scanning magneto-acoustic electric imaging device and method based on ultrasonic excitation, and the device comprises an imaging device and an image reconstruction module, the imaging device carries out the excitation of a to-be-detected biological tissue, and directly transmits a collected magnetoacoustic electric signal to the image reconstruction module; the electrical conductivity image of the to-be-measured object is obtained after processing by the image reconstruction module. The imaging device comprises a sound field excitation module, a magnetic field excitation module and a signal detection module; and the image reconstruction module is used for reconstructing conductivity distribution according to the magnetic-acoustic-electric voltage signal of the biological tissue to be detected, which is acquired by the signal acquisition circuit and is subjected to secondary amplification and filtering. According to the method and the device, on the basis of a method that