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阐述了电磁波透射层析成像数据采集系统的研制，对软硬件的设计作了较详细的说明，还介绍了相应的技术细节。该系统是一个软件、硬件结合的单片机控制数据采集系统：硬件全部采用低功耗、高速器件，其中Ａ／Ｄ转换器采用１２位双积分型模数转换器；软件采用模块化设计和菜单驱动式结构。解决了数据存贮器掉电自动保护和观测系统常见故障自动实时诊断问题；具有多频扫描观测、手动和自动数据采集功能；通过对接收系统的标定，建立系统接收特性曲线，并用查表拟合方法修正仪器的频率特性偏移。实践证明，该系统性能稳定、工作可靠、自动化程度高、简便易学，能够很好地满足现有透射ＣＴ观测系统的需要。
The development of electromagnetic wave transmission tomography data acquisition system was expounded. The design of hardware and software was described in detail. Corresponding technical details were also introduced. The system is a software and hardware combination of SCM control data acquisition system: all the hardware using low-power, high-speed devices, including A / D converter with 12-bit dual-integrated analog-digital converter; software modular design and menu driven Style structure Solve the data storage power-down automatic protection and observation system common faults automatic real-time diagnostic problems; with multi-frequency scanning observation, manual and automatic data acquisition functions; through the calibration of the receiving system, the establishment of the system receive characteristic curve, Combine the method to correct the instrument’s frequency characteristic offset. Practice has proved that the system is stable, reliable, highly automated, easy to learn, and can well meet the needs of existing transmission CT observation system.