High speed data exchange protocol for modern distributed data acquisition systems based on OPC XML-DA

The interface presented in this paper performs a synchronized sampling of all eight common-mode or differential analog inputs with a high sampling rate. This is a low cost interface, entirely controlled by the PC104 CPU. The paper is focused on design and operation aspects of the synchronized analog-to-digital conversion module. This interface is recommended for high speed data acquisition systems and finds its utility in energetic systems, for monitoring the power quality and for recording different specific transient events. Some programmable electronic modules which perform analog and digital signal acquisition in energetic systems already contain a PC104 interface with synchronized sampling of analog inputs; some experimental results are also presented in this paper.

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Advances in Engine Test Capabilities at the NASA Glenn Research Center’s Propulsion Systems Laboratory

Volume 2: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Environmental and Regulatory Affairs ◽

10.1115/gt2006-90181 ◽

2006 ◽

Author(s):

Peter M. Pachlhofer ◽

Joseph W. Panek ◽

Dennis J. Dicki ◽

Barry R. Piendl ◽

Paul J. Lizanich ◽

...

Keyword(s):

Data Acquisition ◽

Control Systems ◽

High Speed ◽

Video Capture ◽

Propulsion Systems ◽

Data Acquisition Systems ◽

Wide Range ◽

High Speed Data Acquisition ◽

High Speed Data ◽

Simulation Systems

The Propulsion Systems Laboratory at the National Aeronautics and Space Administration (NASA) Glenn Research Center is one of the premier U.S. facilities for research on advanced aeropropulsion systems. The facility can simulate a wide range of altitude and Mach number conditions while supplying the aeropropulsion system with all the support services necessary to operate at those conditions. Test data are recorded on a combination of steady-state and high-speed data-acquisition systems. Recently a number of upgrades were made to the facility to meet demanding new requirements for the latest aeropropulsion concepts and to improve operational efficiency. Improvements were made to data-acquisition systems, facility and engine-control systems, test-condition simulation systems, video capture and display capabilities, and personnel training procedures. This paper discusses the facility’s capabilities, recent upgrades, and planned future improvements.

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PC104 Interface Recommended for High Speed Data Acquisition Systems

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.325-326.926 ◽

2013 ◽

Vol 325-326 ◽

pp. 926-929 ◽

Cited By ~ 1

Author(s):

Dorina Purcaru ◽

Cornelia Gordan ◽

Romulus Reiz ◽

Anca Purcaru

Keyword(s):

Data Acquisition ◽

High Speed ◽

Low Cost ◽

Sampling Rate ◽

Digital Signal ◽

Signal Acquisition ◽

Synchronized Sampling ◽

Data Acquisition Systems ◽

High Speed Data Acquisition ◽

High Speed Data

The interface presented in this paper is recommended for high speed data acquisition systems; it performs a synchronized sampling of all common-mode or differential analog inputs with a high sampling rate. This is a low cost interface, entirely controlled by the PC104 CPU. Programmable electronic modules that contain such PC104 interfaces can be found running in the energetic system from Romania; these dedicated equipments perform the analog and digital signal acquisition for monitoring and recording different specific transient events. Some experimental results obtained using the disturbance monitoring device PC-08/104 are also presented in this paper.

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