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Title: Enhanced Edot X System

Abstract

The capability of EdotX would be improved by increasing the instrument's dynamic range to expand the range of signals measurable by the device. The heart of the EdotX system is a two channel analog to digital (A/D) conversion card with two analog to digital converters tightly coupled to a field programmable gate array (FPGA). Signals are continually digitized by the A/D and processed by the FPGA. When the FPGA detects a trigger condition, the data are transferred using direct memory access to the host computer memory, which in turn saves the data to disk. The original design utilizes a single A/D channel for data acquisition. The task was to increase the dynamic range of the system by enabling the second A/D channel, allowing the simultaneous acquisition of the original A/D channel and the additional second A/D channel. The input signal would be fed to the original channel and to the second channel with the second channel input being attenuated. When a signal hits the maximum range of the first channel, the data from the second channel, which is attenuated, are then used. Because both A/D's acquire data simultaneously, they may be used as a single expanded dynamic range channel.

Authors:
;
Publication Date:
Research Org.:
UNLV Research Foundation, 8311 W. Sunset Road, Suite 200, Las Vegas, NV 89113
Sponsoring Org.:
USDOE National Nuclear Security Administration (NA)
OSTI Identifier:
957048
Report Number(s):
DOE/NA/27513-F
TRN: US201018%%333
DOE Contract Number:
FG52-06NA27513
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; ANALOG-TO-DIGITAL CONVERTERS; COMPUTERS; DATA ACQUISITION; DESIGN; EdotX; EDOTX; data acquisition equipment; two channel analog to digital conversion car; field programmable gate array

Citation Formats

Smith, Scott, and Harry Bostick. Enhanced Edot X System. United States: N. p., 2009. Web. doi:10.2172/957048.
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Smith, Scott, & Harry Bostick. Enhanced Edot X System. United States. doi:10.2172/957048.
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Smith, Scott, and Harry Bostick. Mon . "Enhanced Edot X System". United States. doi:10.2172/957048. https://www.osti.gov/servlets/purl/957048.
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@article{osti_957048,
title = {Enhanced Edot X System},
author = {Smith, Scott and Harry Bostick},
abstractNote = {The capability of EdotX would be improved by increasing the instrument's dynamic range to expand the range of signals measurable by the device. The heart of the EdotX system is a two channel analog to digital (A/D) conversion card with two analog to digital converters tightly coupled to a field programmable gate array (FPGA). Signals are continually digitized by the A/D and processed by the FPGA. When the FPGA detects a trigger condition, the data are transferred using direct memory access to the host computer memory, which in turn saves the data to disk. The original design utilizes a single A/D channel for data acquisition. The task was to increase the dynamic range of the system by enabling the second A/D channel, allowing the simultaneous acquisition of the original A/D channel and the additional second A/D channel. The input signal would be fed to the original channel and to the second channel with the second channel input being attenuated. When a signal hits the maximum range of the first channel, the data from the second channel, which is attenuated, are then used. Because both A/D's acquire data simultaneously, they may be used as a single expanded dynamic range channel.},
doi = {10.2172/957048},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2009},
month = {Mon Jun 15 00:00:00 EDT 2009}
}
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Technical Report:
View Technical Report (2.48 MB)
DOI:  10.2172/957048
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