The Improvement of Magnetic Field Sensitivey of Magnetoelectric Sensors in Series

The array is a new structure that can effectively improve the performance of the sensor. Many scholars have studied the role of charge accumulation in the array, but there is no basic performance study for one unit, that is, two sensors in series. In this paper, a sensor with the same size made of piezoelectric material PZT and magnetostrictive material is designed. It is connected in series to study the bias magnetic field, resonance frequency, resonance peak, sensitivity and linearity. Through the test of the series structure, we found that compared with a single sensor, when the input excitation does not become, the bias magnetic field of the series inductor does not change, the resonance frequency does not change, and the resonance peak is the sum of a single sensor. The sensitivity and sensitivity have also been significantly enhanced. It provides an idea for the study of multi-unit array sensor performance.