Full waveform voltage and current recording device applied for MTEM transmitters

The invention discloses a full waveform voltage and current recording device applied for MTEM (multichannel transient electromagnetic method) transmitters. The device comprises a hardware part and a software part. The hardware part comprises a front end conditioning circuit, a data acquisition circuit, a high precision atomic clock circuit, a master control circuit which has FPGA as the core, a power supply circuit, and a PC upper computer. The software part comprises a HDL program of the FPGA, a USB chip firmware program, a MSP 430 tamed atomic clock program and a PC upper computer program. The device has advantages such as high precision and low noise. By use of the device, data can be recorded and transmitted to a receiver in real time, and long time data acquisition of the complete computer is stable and reliable. 本发明公开了一种应用于MTEM（多通道瞬变电磁法）发送机的全波形电压及电流记录装置，由硬件部分和软件部分组成。所述硬件部分由前端调理电路、数据采集电路、高精度原子钟电路、以FPGA为核心的主控电路、供电电路和PC上位机组成。所述软件部分包括FPGA内的HDL程序、USB芯片固件程序、MSP430驯服原子钟程序以及PC上位机程序。所述装置具有高精度、低噪音等主要优点，可以将数据实时记录并