瞬变电磁探测发射机的设计

he paper introduces the principle of transient electromagnetic method ,designing the transmitter based on DSP. Launch system requirements the emission currentin in amperes, in order to obtain the early transient signal, the requirement of cut-off time is more critical, generally it is controlled in microseconds level. At the same time, on the premise of meeting its power, to ensure the safety and reliability of the system ,the overshoot absorbing circuit and over-current protection circuit are joined in the design,and the high-speed data acquisition module is designed to record and display the emission current and cut-off time.