便携式多道能谱分析系统的研制

The development of a portable MCA

介绍了一种基于数字寻峰技术的多道能谱测量系统。利用可编程逻辑器件设计灵活方便的特点,借助VHDL硬件描述语言,设计了数字寻峰电路,利用单片机进行采集和管理数据,并通过USB口上传数据到主计算机。与传统的多道能谱测量系统相比,本系统具有结构简单,功耗小,操作方便,体积小等特点。

The paper describes the Multichannel Analyzer （MCA） based on digital peak searching technology. The peak-searching function is implemented in the complex programmable logic devices （CPLD） and is designed using the hardware description language which is quite flexible and convenient. After completion of peak searching, the MCU takes the responsibility of data acquisition, and management. The data are transported to the host computer by the USB port. Compared with the traditional MCA, our design has advantages such as small size, low power consumption, easy to operate and so on.