CAJ | 학술논문

在此以X射线透射衰减规律为基础，设计出基于DSP的X射线能谱数据采集系统。重点介绍用于能谱数据采集的硬件电路和软件设计，其中，硬件电路主要由前置放大、滤波、主放大、峰值保持电路组成，软件主要由TMS320F2812对经过预处理后的脉冲信号进行多道脉冲幅度分析操作，并最终绘制出X射线能谱图。本系统具有电路设计简单，采样精度高，抗干扰能力强等特点。
재차이X사선투사쇠감규률위기출，설계출기우DSP적X사선능보수거채집계통。중점개소용우능보수거채집적경건전로화연건설계，기중，경건전로주요유전치방대、려파、주방대、봉치보지전로조성，연건주요유TMS320F2812대경과예처리후적맥충신호진행다도맥충폭도분석조작，병최종회제출X사선능보도。본계통구유전로설계간단，채양정도고，항간우능력강등특점。
Based on the law of X-ray transmission attenuation,the X-ray energy spectrum data acquisition system based on DSP was designed. The hardware circuit and software design applied to energy spectrum data acquisition is introduced in this pa-per. The hardware circuit is mainly composed of pre-amplification,filtering,main amplification and peak holding circuit. The software is chiefly to analyze the preprocessed multi-channel impulse amplitude by means of TMS320F2812,and then draw the X-ray energy spectrum diagram. The system has the advantages of simple circuit design,high sampling precision,strong anti-jam-ming capability and so on.