Data Acquisition - ETL White Papers
Hard Real Time Quick EXAFS Data Acquisition With All Open Source Software on a Commodity Personal Computer
Overview This paper describes here the data acquisition subsystem of the Quick EXAFS (QEXAFS) experiment at the National Synchrotron Light Source of Brookhaven National Laboratory. For ease of future growth and flexibility, almost all software components are open source with very active maintainers. Among them, Linux running on x86 desktop computer, RTAI for real-time response, COMEDI driver for the data acquisition hardware, Qt and PyQt for graphical user interface, PyQwt for plotting, and Python for scripting. The signal (A/D) and energy-reading (IK220 encoder) devices in the PCI computer are also EPICS enabled. The control system scans the monochromator energy through a networked EPICS motor. With the real-time kernel, the system is capable of deterministic data-sampling period of tens of micro-seconds with typical timing-jitter of several micro-seconds.
| Publisher | Brookhaven National Laboratory | File Format | |
|---|---|---|---|
| Date Published | October 2007 | ||
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 7 out of 13 users found this white paper useful
White Paper RSSCustomer Centricity, Master Data and the "360-Degree View"
DownloadWhen reviewing the popular literature on customer data integration and master data management, a frequently recurring business driver is the ability to establish a "360-degree view of the customer." This...
Gaining Perspective on Performance: Best Practices for an Effective 360-Degree Feedback Program
When planned in advance and run strategically, a 360-degree feedback program can offer serious business value. Feedback from multiple raters provides useful data on your employees, their performance, and their...
Predictive Analytics for the Claim Handling Process
Predictive Analytics for the Claim Handling Process: Understanding the Analytics Behind Predictive Claims This 12-page technical brief serves as a guide for understanding how Predictive Claims' predictive modeling capabilities can...
Premier Research Group Limited Supports Clinical Trials With Consolidated, Less Costly IT System
Premier Research Group Limited wanted to leverage technology to be more responsive to clients, ultimately helping clients improve their clinical trials and increasing client satisfaction and consolidate numerous geographically-dispersed clinical...
Incorporating Site-Level Knowledge to Extract Structured Data From Web Forums
Web forums have become an important data resource for many web applications, but extracting structured data from unstructured web forum pages is still a challenging task due to both complex...
