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Title: Device for modular input high-speed multi-channel digitizing of electrical data

A multi-channel high-speed digitizer module converts a plurality of analog signals to digital signals (digitizing) and stores the signals in a memory device. The analog input channels are digitized simultaneously at high speed with a relatively large number of on-board memory data points per channel. The module provides an automated calibration based upon a single voltage reference source. Low signal noise at such a high density and sample rate is accomplished by ensuring the A/D converters are clocked at the same point in the noise cycle each time so that synchronous noise sampling occurs. This sampling process, in conjunction with an automated calibration, yields signal noise levels well below the noise level present on the analog reference voltages. 1 fig.
Inventors:
;
Issue Date:
OSTI Identifier:
106710
Assignee:
AlliedSignal Inc., Morristown, NJ (United States) SNL; SCA: 426000; PA: EDB-95:137234; SN: 95001461633
Patent Number(s):
US 5,453,744/A/
Application Number:
PAN: 8-156,048
Contract Number:
AC04-76DP00613; AC35-89ER40486
Resource Relation:
Other Information: PBD: 26 Sep 1995
Research Org:
Honeywell International Inc; Universities Research Association
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; DIGITIZERS; DESIGN; ANALOG-TO-DIGITAL CONVERTERS; ELECTRIC POTENTIAL; NOISE; SAMPLING