Modeling and characterization of sigma-delta analog-to-digital converters

This paper deals with a comprehensive approach to metrological research on sigma-delta analog-to-digital converters based on a framework of international cooperation. Problems related to modeling and experimental testing of high-performance sigma-delta modulators are highlighted. Results of simulation and experimental tests carried out on a prototype of fifth-order sigma-delta modulator are discussed by emphasizing the effectiveness of the international research cooperation in efficiently reaching significant results

Modeling and characterization of sigma-delta analog-to-digital converters

The paper deals with a comprehensive approach to metrological research on sigma-delta analog-to-digital converters based on a framework of international cooperation. Problems related to modeling and metrological characterization of high performance sigma-delta converters are highlighted. Results of simulation as well as experimental tests carried out on a fifth order modulator sigma-delta prototype are discussed by emphasizing the effectiveness of the international cooperation in efficiently reaching significant results

Personal computers for data acquisition and measurement. Standards and interfaces, state of the art, trends, applications

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Qualitaetssicherung fuer Analog-Digital-Umsetzer Vortraege

Contributions to the 127th Seminar of the Physikalische Technische Bundesanstalt (PTB), November 1995, on quality assurance for A/D converters include the following papers: A/D conversion methods, experiences with A/D converters, measuring place for parameter determination on high-resolving A/D converters, characterization of rapid sample- and -hold links, methods for identification of weakly nonlinear systems in the frequency region, enlargement of the domain of dynamics of A/D converters, rapid pipeline A/D converters, A/D converters for weak sensor signals, delta-sigma converter, modelling/simulation of a 4-bit-flash A/D converter. (WEN)Papers of the 127. PTB SeminarSIGLEAvailable from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Schnittstellenproblematik in der Zulassung modularer Messsysteme zur Eichung

SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

PC instrumentation for data acquisition and measurement

Copy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Schnittstellenstandard in der Tankstellenelektronik

This report documents the 3rd EPSI meeting where nearly 70 leading persons and companies from the technical petrol station area came together in Berlin. After a status report, EPSI is presented as a modern concept for open communication in petrol stations. The decision tables for the selection of EPSI devices collected in this paper can be highlighted to become very useful. The next contribution presents new trends in the fieldbus technology, the competent discussion of problems of the fieldbus standardization beeing a main topic. The report includes a discussion concerning the question, who can profit from open interfaces. A developer's report points out the tremendous troubles caused by inadequate or missing standardization. Two more papers deal with relevant topics of conformity tests and pattern approvals. An essential part of the 3rd meeting can only be presented poorly, namely the accompanying exhibition with demonstrations of problem-free interoperability of distinct petrol station devices with EPSI interfaces from different manufacturers. The report's appendix gives major details and a few more informations. (orig.)Dieser Forschungsbericht dokumentiert die 3. EPSI-Fachtagung, die mit fast 70 Teilnehmern fuehrende Personen und Firmen aus dem technischen Tankstellenbereich in Berlin zusammenbrachte. Nach einem Statusbericht wird EPSI als modernes Konzept fuer die offene Kommunikation in Tankstellen vorgestellt. Als sehr nuetzlich koennen sich die in diesem Beitrag zusammengefassten Entscheidungstabellen fuer die EPSI-Geraeteauswahl herausstellen. Neue Trends in der Feldbustechnologie werden anschliessend besprochen, wobei vor allem auch die Probleme bei der Feldbusnormung kompetent diskutiert sind. Es wird auf die Frage eingegangen, wem offene Schnittstellen nutzen, ein Entwicklerbericht zeigt die enormen Schwierigkeiten auf, die durch mangelhafte oder fehlende Standardisierung auftreten koennen. In zwei weiteren Beitraegen sind alle relevanten Fragen der Konformitaetspruefung sowie der Bauartzulassung zur Eichung behandelt. Ein wesentlicher Teil der 3. Fachtagung kann hier nur sehr eingeschraenkt wiedergegeben werden, naemlich die begleitende Ausstellung mit der Demonstration der problemlosen Zusammenarbeit unterschiedlicher Tankstellengeraete mit EPSI-Schnittstelle von verschiedenen Herstellern. Der Anhang in diesem Bericht nennt wesentliche Details und gibt einige weitere Informationen. (orig.)Available from TIB Hannover: RN 4117(463-5) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Schnittstellenstandard in der Tankstellenelektronik. T. 4: Fachtagung Schnittstellenstandardisierung an Tankstellen mit dem Schwerpunkt EPSI

This report demonstrates the contents and results of discussions drawn up during a professional meeting on 'Interface Standardization for Petrol Stations with the main topic EPSI (European Petrol Station Interface)'' which was held in Berlin on 17 and 18 January 1995. This EPSI meeting marks the end of the chief phase of a research project to define an up to date forecourt interface. The project was coordinated by the DGMK, financed by mineral oil companies, and supported by manufacturers. The project was carried out in the laboratory group 'Computer-integrated measuring systems' of the Physikalisch-Technische Bundesanstalt (PTB) in Berlin-Friedrichshagen. The meeting was held to show results, present implementations (e.g. the very new EPSI chip), and discuss the future steps for this new type of communication concept. There was a participation of more than 90 developers, manufacturers, users, and economic experts from the European petrol station scene. Points of gravity of the meeting were the support of developers, the standardization of EPSI, aspects of quality assurance, and pattern approval. All related and other presentations together with additional information (slide copies, tables) are printed in this report. (orig.)SIGLEAvailable from TIB Hannover: RN 4117(463-4) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman