该转换器具有出色的直流规格，非常适合在同时需要直流数据的情况下对交流信号进行高速数据采集。
With excellent dc specifications, the converter is ideal for high speed data acquisition of ac signals where dc data is also required.
本发明直接对交流电流进行采集和判断，缩短了信号采集时间和电流过流时的保护时间。
The method and the device acquire and judge the alternating current directly, shorten the signal acquisition time and the protective time during overcurrent.
由于采用交流采样技术，实现了信号的实时采集，克服了直流采样误差大和稳定性差的缺点。
The real-time signal acquisition with AC-sampling technology overcomes the short comings of bad stability and big error in DC-sampling.
在此基础上提出了一种新的交流信号同步采集方法，适合于对采样率和采集精度要求较高的场合。
On the base of them, a new synchronous sample method for acquiring signal is presented. With the new method, the high rate and accuracy can be reached.
硬件设计方面，根据柴油发电机组数据采集和处理的实际特点，用CPLD和DSP控制对六路同时采样的高速A／D转换器ADS7864来完成六路交流电信号的数据采集；
With regard to the hardware design, we use the CPLD and DSPs to control the ADS7864, which can sample the six signals of voltage and current at the same time;
硬件设计方面，根据柴油发电机组数据采集和处理的实际特点，用CPLD和DSP控制对六路同时采样的高速A／D转换器ADS7864来完成六路交流电信号的数据采集；
With regard to the hardware design, we use the CPLD and DSPs to control the ADS7864, which can sample the six signals of voltage and current at the same time;
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