CAJ | 학술논문

介绍了一种基于核电子学实验教学用的模数变换电路的研制。在设计中,以单极型、16位、采样率为500kHz,微功耗采样模数转换器ADS8322为核心,将采样保持电路输出的模拟信号转换为数字信号,通过发光二极管显示变换出的结果,在核物理实验教学过程中便于学生观察模数转换结果。在PCB板设计时在板正面绘制出了电路原理图,理解电路原理及构成。该电路也可以配合逻辑控制模块以及PC软件组成多道分析系统测量射线能谱。
개소료일충기우핵전자학실험교학용적모수변환전로적연제。재설계중,이단겁형、16위、채양솔위500kHz,미공모채양모수전환기ADS8322위핵심,장채양보지전로수출적모의신호전환위수자신호,통과발광이겁관현시변환출적결과,재핵물리실험교학과정중편우학생관찰모수전환결과。재PCB판설계시재판정면회제출료전로원리도,리해전로원리급구성。해전로야가이배합라집공제모괴이급PC연건조성다도분석계통측량사선능보。
A kind of analog to digital conversion circuitry which was developed for Nuclear and Particle Exper-iment of Underrated Student in university was introduced. In the design, unipolar,16 bits,500kSPS, Micro Power Sampling ADS8322 was used for the core. The output that was from the sample and hold circuit was dis-played by the light-emitting diode through the analog into digital. It would help students to observe the process of teaching analog-digital conversion results. In the front of PCB,a circuit diagram was been drawn to facilitate students to understand circuit schematics and composition in nuclear physics experiments. The circuit also can consist of multi-channel analysis system with PC software logic control module to store ray spectroscopy.