ABSTRACT
Studies have shown that the sensitivity of the probe with the specific fluxgate excitation waveform and a current source or voltage source drive and change, and therefore, as well as incentives for dierent excitation parameters cause sensitivity study has been one of the major changes in research direction fluxgate, among them, Spain’s Lucas P, et al. (Perez 2006), the domestic Zhang Fu-based sinusoidal current incentives calculate the sensitivity of the probe (Zhang 1995), the United States Gordan DI, et al for the sensitivity of the triangular wave current and voltage sources incentives were calculated (Gordon 1965), sensitivity American Burge JR Research Triangle wave excitation ring probe (Burger 1972), generally speaking, theoretical research output fluxgate before focused on incentives sine and triangular wave, square wave excitation basically no way involved. The square wave excitation mode due to its easy to achieve, especially existing fluxgate sensor integrated fluxgate sensor-driven approach is widely used, and thus to study its impact excitation parameters of sensitivity has certain practical significance(Liu 2010).
