A5008118761- Advanced Electrical Measurement Techniques
- Scientific Measurement and Uncertainty Evaluation
- Radioactive Decay and Measurement Techniques
- Power Quality and Harmonics
- Non-Destructive Testing Techniques
- Sensor Technology and Measurement Systems
- Magnetic Field Sensors Techniques
- Electrical and Bioimpedance Tomography
- Analog and Mixed-Signal Circuit Design
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
- Power Transformer Diagnostics and Insulation
- Power Line Communications and Noise
- Earthquake Detection and Analysis
- Advancements in PLL and VCO Technologies
- Engineering Diagnostics and Reliability
- Experimental Learning in Engineering
- Radiation Effects in Electronics
- Superconducting Materials and Applications
- Advanced MEMS and NEMS Technologies
- Electrostatic Discharge in Electronics
- Nuclear Physics and Applications
- Quantum and electron transport phenomena
- Advanced Memory and Neural Computing
- Mechanical and Optical Resonators
Food Safety Authority of Ireland
2017-2022
National Standards Authority of Ireland
2010-2022
University of Limerick
2009-2010
Enterprise Ireland
2000-2009
Met Éireann
2003-2008
Fully digital impedance bridges are emerging as measuring instruments for primary electrical metrology and the realization of units scales. This article presents a comprehensive analysis electronic fully both generating (based on digital-to-analog converters) digitizing analog-to-digital bridges. The sources measurement error analyzed in detail expressed by explicit mathematical formulas ready to be applied specific bridge case interest. same can employed also basis optimize design operating...
A project funded by the European Commission which started in 1998 has been completed. The aim of this was to establish a measurement system that allows calibration standard capacitors terms R/sub K-90/. whole comprises quantum Hall samples, an automated modular bridge system, and devices calibrate characterize set-up. uncertainty for 10-pF capacitor is about one part 10/sup 7/.
The Bureau International des Poids et Measures (BIPM) carries out a number of comparisons dc voltage standards with National Metrology Institutes (NMIs). These take the form on-site Josephson or bilateral using traveling based on Zener diodes. This paper describes some new procedures used in both types comparison and presents results five recent BIPM key comparisons.
Main text Comparison for ultra-low DC current sources between LNE (France), BFKH (Hungary), NSAI NML (Ireland), IPQ (Portugal), RISE (Sweden), METAS (Switzerland) and TÜBİTAK UME (Turkey). To reach the main of this paper, click on Final Report . Note that is which appears in Appendix B BIPM key comparison database https://www.bipm.org/kcdb/ The final report has been peer-reviewed approved publication by CCEM, according to provisions CIPM Mutual Recognition Arrangement (CIPM MRA).
This work presents the results of a long-term study temporal behavior Zener diode-based electronic voltage standards, which are commonly used to maintain local representation SI volt. The drifts 10-V outputs commercially available standards described by secular drift models whose parameters have been estimated analysis historical data obtained, over ten-year period, from bilateral comparison exercises. It is shown how within-group comparisons can be investigate medium-term deviations...
Polycrystalline silicon fuses are one time programmable memory elements which allow the calibration of integrated circuits at wafer and package level. We present a zero-dimensional lumped parameter model programming made from combination tungsten silicide polycrystalline silicon. The components an electrical model, thermal flow model. generates quantitatively accurate results reproduces trends with applied voltage fuse size.
The core objective of EMPIR project 17RPT04 VersICaL is to improve the European measurement infrastructure for electrical impedance, with particular emphasis on capabilities developing NMIs and calibration centres. will seek exploit results existing research digital impedance bridges (DIBs) by designing, constructing validating simple, affordable versions suitable realise scale in range 1 nF 10 μF mH H relative uncertainties -5 -6 . first project, including bridge designs details a polyphase...
This article presents the concept and some aspects of physical implementation a virtual training laboratory (VTL) in field primary impedance metrology. The creation VTL provides novel method disseminating metrological knowledge expertise practical way at low cost. It will expose new users to live experience operating digital bridge thus helping encourage uptake this useful measurement technology. was developed as part EMPIR projects VersICal 17RPT04, A versatile electrical calibration based...
The feasibility of measuring the pressure and humidity dependences 10-V output electronic voltage standards, by analysis data from routine within-group comparisons an ensemble standard accompanying records environmental conditions, has been investigated. method was found to be useful for identifying individual standards with significant sensitivities either or humidity.
Magnetic measurements are vital to support European challenges in areas such as electric vehicles; health; power transformation and harvesting; clean, affordable secure energy; information sensor technology. However, only very few NMIs have the capabilities perform traceable of all most important magnetic quantities. Consequently, adoption novel technologies materials is hindered by lack local metrological expertise that research development activities academia industry could exploit. A...
Electronic voltage standards (EVSs), based on Zener-diode reference elements, are widely used as to maintain a local representation of the unit and transfer for comparisons between at different locations. In order make optimum use such standards, it is important that individual units be characterised effects external influence factors so appropriate corrections can applied. Ambient atmospheric pressure affects outputs some EVSs. An experimental set-up measure coefficient an EVS described...
This report presents the results of a comparison measurements on four electronic DC reference standards performed by national metrology institutes in EUROMET region and BIPM. The comparison, terms degrees equivalence, show that there is good agreement between measurement participants. also time-dependent fluctuations output voltages travelling provide one main sources uncertainty.
We present here a comprehensive analysis of the error sources in electronic fully-digital impedance bridges, for both sourcing and digitizing bridges. This work can be used as basis to optimize design operating parameters digital evaluation uncertainty.
Increasing demand for traceable, accurate measurements of power and quality (PQ) parameters has resulted in an intensive metrology research effort this area. This paper describes the objectives activities EMPIR project 15RPT04 TracePQM, jointly funded by European Union participating countries. The overall goal is to develop validate a modular, well documented grade system measurement PQ using digital sampling techniques. first results project, including description design, software...
Starting in 1998 a project funded by the European Commission has been carried out co-operation of seven partners. The aim this was to establish measurement system which allows calibration standard capacitors terms R/sub K-90/. whole comprises suitable quantum Hall samples, an automated bridge and auxiliary devices calibrate characterize set-up. uncertainty for 10-pF capacitor is about 1 part 10/sup 7/.
Increasing demands for traceable, accurate measurements of power and quality (PQ) parameters have resulted in an intensive metrology research effort this area. This paper describes the objectives so far achieved results EURAMET EMPIR Project TracePQM (15RPT04), jointly founded by European Union participating countries. The overall goal project is to develop open, modular, well documented grade system measurement PQ means digital sampling techniques available everyone increase capacity
Main text As part of the ongoing BIPM key comparison BIPM.EM-K11, a 10 V voltage reference standards and National Standards Authority Ireland - Metrology Laboratory (NSAI NML), Dublin, Ireland, was carried out in November December 2020. The objective for NSAI-NML participating this to demonstrate international equivalence its DC measurement results support their calibration capabilities (CMCs) published Key Comparison Database (KCDB). Two Zener diode-based travelling (Fluke 732B), BIPM_8...
As a part of the ongoing BIPM key comparison BIPM.EM-K11.b, 10?V voltage reference standards and National Standards Authority Ireland?National Metrology Laboratory (NSAI?NML), Dublin, Ireland, was carried out from March to April 2011. Two Zener diode-based travelling (Fluke 732B) were transported by freight NSAI?NML. At NSAI?NML, output EMF each standard measured direct with group characterized electronic standards. BIPM, calibrated before after measurements at Josephson Voltage Standard....
Magnetic measurements are vital to support European challenges in areas such as electric vehicles; health; power transformation and harvesting; clean, affordable secure energy; information sensor technology.However, only very few NMIs have the capabilities perform traceable of all most important magnetic quantities.Consequently, adoption novel technologies materials is hindered by lack local metrological expertise that research development activities academia industry could exploit.A project...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation William Lee, Oliver Power, Andrew Fowler, Sandra Healey, John Browne; Blowing Polysilicon Fuses. AIP Conf. Proc. 9 September 2009; 1168 (1): 1461–1464. https://doi.org/10.1063/1.3241370 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search...