DATA ACQUISITION SYSTEM FOR ULTRAHIGH-RESOLUTION DEDICATED STEM

一个自动数据采集系统正在继续开发中。 用于真空发电机的HB-501超高分辨率专用 扫描电子显微镜(STEM)克服了 商业系统对并发数据采集的限制和 处理算法。作为新系统的一部分，数据采集 和分析程序，称为桌面光谱分析仪和X射线 数据库(DTSA)是为Macintosh II(及更高版本)开发的 苹果电脑的类别。数据采集通过一个 经过特殊修改的商用、与NuBus兼容的I/O处理器和 定制设计的采集和控制软件例程。一项专利 (美国专利号5,299,138)，由NIH和NIST联合持有， 1994年3月为这一分析工具发布。DTSA是可用的 来自国家研究院标准参考数据办公室(OSRD) 标准与技术学院，只需支付适中的费用。著作权也有 已被OSRD获得。

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 new system, a data acquisition and analysis program, called Desk Top Spectrum Analyzer and X-Ray Database (DTSA), has been developed for the Macintosh II (and higher) class of Apple computers. Data acquisition is accomplished with 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 from the Office of Standard Reference Data (OSRD), National Institute of Standards and Technology, for a modest fee. A copyright has also been obtained by the OSRD.