在多脉冲强流直线感应加速器(LIA)的测控和诊断系统中，电子束的在线测试数据处理是重要的组成部分。多脉冲强流电子束在线测试数据处理系统是集测试仪器、计算机和工作站等组成的工业以太网，以及实现测试网络配置、测试仪器的通信及控制、数据采集、束流强度和束质心位置计算、显示以及存储等功能为一体的专用软件。多脉冲强流电子束采用基于电阻环束流位置检测器(BPM)的束流测试线路，根据束线上每个BPM测试得到的四个象限点的原始电压信号波形，以及测试线路的结构参数，计算束线上每个PBM位置的束流强度以及束质心位置随时间变化的波形，根据随时间变化的波形数据计算每个BPM位置多个脉冲束流的强度以及束质心位置的统计数据。数据的存储采用SQL和文件系统相结合的方式。这套多脉冲强流电子束在线数据处理系统在多脉冲强流LIA的调试实验中稳定可靠运行，为实验提供有效可靠的数据。

The beam online data processing system is an important part of control and diagnoses system on the multi-pulse and high current LIA. The hardware includes many measurement instruments and computers which construct the industrial ethernet network. Many software models are accomplished on LabVIEW which include the measurement network configuration, data collection, computing intensity and position of beam, calibration parameter input display and storage, etc.The method of the resistance ring is applied for beam measurement to the multi-pulse LIA, and the waves of beam intensity and position are achieved according to the oscillograph voltage wave and calibration parameters, and statistical beam parameters are computed based on waves. Two ways for data storage are applied cooperatively. The system runs steadily and reliably on multi-pulse and high current LIA by this time and which gives valid and reliable information for experiment.