DATA ACQUISITION SYSTEM FOR ULTRAHIGH-RESOLUTION DEDICATED STEM

正在继续开发一个自动数据采集系统， 真空发生器HB 501超高分辨率专用扫描 透射电子显微镜（STEM）克服了 用于并行数据采集和处理的商用系统 算法 作为系统的一部分，数据采集和分析 台式光谱分析仪和X射线数据库（DTSA）程序， 为苹果电脑的Macintosh II类开发。 这个程序 已修改为在Power PC系列和68 K上以本机模式运行 苹果电脑。 数据采集是利用一个专门的 改进的商用NuBus兼容I/O处理器和定制设计的 采集和控制软件程序。 专利（美国专利号： 5，299，138），由NIH和NIST联合举行， 1994年3月的分析工具。 DTSA的费用不高 国家标准参考数据办公室（OSRD），国家统计研究所 标准和技术。 版权也已获得 OSRD。

An automated data acquisition system is under continuing development for the Vacuum Generators HB 501 ultrahigh-resolution dedicated scanning transmission electron microscope (STEM) to overcome the limitations of commercial systems for concurrent data acquisition and processing algorithms. As part of the system, a data acquisition and analysis program, Desk Top Spectrum Analyzer and X-Ray Database (DTSA), was developed for the Macintosh II class of Apple computers. This program has been modified to run in native mode on the Power PC series and on 68K Apple computers. Data acquisition is accomplished utilizing a specially modified, commercial, NuBus-compatible I/O processor and custom-designed acquisition and control software routines. A patent (U.S. Patent No. 5,299,138), held jointly by the NIH and the NIST, was issued for this analytical tool in March 1994. The DTSA is available for a modest fee from the Office of Standard Reference Data (OSRD), National Institute of Standards and Technology. A copyright has been also obtained by the OSRD.