Trigger and data acquisition systems

2020 ◽  
pp. 795-814
Author(s):  
Hermann Kolanoski ◽  
Norbert Wermes
Keyword(s):  
Data Acquisition ◽  
Computer System ◽  
High Speed ◽  
Consumer Electronics ◽  
Transfer Rates ◽  
Data Acquisition Systems ◽  
Electronic Form ◽  
Storage Media ◽  
Analogue Signals ◽  
Data Acquisition And Processing

The quantities measured by detectors are generally analogue signals or rates which are, with few exemptions, available in electronic form and which one usually wants to further process with computers. This chapter describes the interfaces between the detector-near electronics (see chapter 17) and a computer or a computer system. In order to limit the transfer rates of the interfaces and the capacities of storage media to the necessary, the interesting events are usually selected by triggers. Data acquisition and triggering are therefore closely connected and have to be coordinated. The capabilities of data acquisition and processing have grown with high speed and will presumably further grow following the developments in computers, networks and consumer electronics. In the framework of this book only a limited inside into these developments can be given.

Study on a Data Acquisition System for Logging while Drilling

2012 ◽  
Vol 198-199 ◽  
pp. 1246-1249
Author(s):  
Sheng Hu Liu ◽  
Ya Min Xing
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Processing System ◽  
Digital Design ◽  
System Structure ◽  
Well Drilling ◽  
Drilling Technology ◽  
Phase Sensitive ◽  
Logging While Drilling ◽  
Data Acquisition And Processing

This electronic Logging while drilling (LWD) is a new sort of well drilling technology developed in recent years. As to the traditional cable borehole survey, the LWD method has many advantages because of its higher accuracy, higher geologic strata resolution capacity, much less time and cost. To meet the current logging technology needs, A data acquisition and processing system for logging while drilling is designed．It minutely introduces the collection system structure, acquisition Program, the digital design of LWD and discusses the design and the implementation of each functional module．The system which designed on the basis of the high precise DSP and FPGA implements signal pretreatment, high speed A/D control and digitalization of the phase sensitive demodulation etc, optimizes the acquisition and processing system and supplies a new way for the development of logging while drilling．Experimental results show that system performance has attained the design requirement.

PC104 Interface Recommended for High Speed Data Acquisition Systems

2013 ◽  
Vol 332 ◽  
pp. 119-123
Author(s):  
Dorina Purcaru ◽  
Anca Purcaru
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
Sampling Rate ◽  
Signal Acquisition ◽  
Synchronized Sampling ◽  
Data Acquisition Systems ◽  
High Speed Data Acquisition ◽  
High Speed Data ◽  
Energetic Systems

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.

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

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.

PC104 Interface Recommended for High Speed Data Acquisition Systems

2013 ◽  
Vol 325-326 ◽  
pp. 926-929 ◽  
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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