Physikalisch-Technische Bundesanstalt

G. Wübbeler, F. Schmähling, J. Beyer, J. Engert and C. Elster (2012). Analysis of magnetic field fluctuation thermometry using Bayesian inference. Meas. Sci. Technol. 23, 125004 (9pp). DOI:1018088/0957-0233/23/12/125004.

W. Bich, M. G. Cox, R. Dybkaer, C. Elster, W. T. Estler, B. Hibbert, H. Imai, W. Kool, C. Michotte, L. Nielsen, L. Pendrill, S. Sidney, A. M. H. van der Veen and W. Wöger (2012). Revision of the ''Guide to the Expression of Uncertainty in Measurement. Metrologia 49, 702-705.

G. Ehret M. Schulz, M. Stavridis and C. Elster (2012). Deflectrometric systems for absolute flatness measurements at PTB. Meas. Sci. Technol. 23, 094007 (8pp).

H. Füser, S. Eichstädt, K. Baaske, C. Elster, K. Kuhlmann, R. Judaschlke, K. Pierz and M. Bieler (2012). Optoelectronic time-domain characterization of a 100 GHz sampling oscilloscope. Meas. Sci. Technol. 23, 025201 (10pp).

I. Lira, A. Chunovkina, C. Elster and W. Wöger (2012). Analysis of key comparisons incorporating knowledge about bias. IEEE T. Instrum. Meas., 61, 2079-2084.

B. Toman, J. Fischer and C. Elster (2012). Alternative analyses of measurements of the Planck constant. Metrologia 49, 567-571.

M.-A. Henn, H. Gross, F. Scholze, M. Wurm, C. Elster and M. Bär (2012). A maximum likelihood approach to the inverse problem of scatterometry. Opt. Express 20, 12771-12786. [download pdf (1006 kB)]

A. Liebert, H. Wabnitz and C. Elster (2012). Determination of absorption changes from moments of distributions of times of flight of photons: optimization of measurement conditions for a two-layered tissue model. J. Biomed. Opt. 17, 057005. [download pdf (679 kB)]

C. Elster and I. Lira (2012). On the choice of a noninformative prior for Bayesian inference of discretized normal observations. Comput. Stat. 27, 219-235.

S. Eichstädt, A. Link, P. Harris and C. Elster (2012). Efficient implementation of a Monte Carlo method for uncertainty evaluation in dynamic measurements. Metrologia 49, 401-410.

K. Klauenberg and C. Elster (2012). The multivariate normal mean - sensitivity of its objective Bayesian estimates. Metrologia 49, 395-400.

S. Eichstädt (2012). Analysis of Dynamic Measurements - Evaluation of dynamic measurement uncertainty. PhD Thesis. [ download pdf (1MB) ] 

S. Nevas, G. Wübbeler, A. Sperling, C. Elster and A. Teuber (2012). Simultaneous correction of bandpass and stray-light effects in array spectroradiometer data. Metrologia 49, 43-47.

Th. Bruns, A. Link and A. Täubner (2012). The influence of different vibration exciter systems on high frequency primary calibration of single-ended accelerometers: II. Metrologia 49, 27-31.

O. Bodnar, G. Wübbeler and C. Elster (2012). Comparison of different choices for a prior under partial information in a bayesian analysis, in "Advanced Mathematical & Computational Tools in Metrology and Testing IX" , Series on Advances in Mathematics for Applied Sciences vol. 84, eds. F. Pavese, M. Bär, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono. World Scientific New Jersey.

S. Eichstädt and C. Elster (2012). Uncertainty evaluation for continuous-time measurements, in "Advanced Mathematical & Computational Tools in Metrology and Testing IX" , Series on Advances in Mathematics for Applied Sciences vol. 84, eds. F. Pavese, M. Bär, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono. World Scientific New Jersey.

T. Esward, C. Matthews, S. Downes, A. Knott, S. Eichstädt and C. Elster (2012). Uncertainty evaluation for traceable dynamic measurement of mechanical quantities: A case study in dynamic pressure calibration, in "Advanced Mathematical & Computational Tools in Metrology and Testing IX" , Series on Advances in Mathematics for Applied Sciences vol. 84, eds. F. Pavese, M. Bär, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono. World Scientific New Jersey.

K. Klauenberg, K. Jousten and C. Elster (2012). Bayesian variance separation under heteroscedasticity: Application to an unstable measurand, in "Advanced Mathematical & Computational Tools in Metrology and Testing IX" , Series on Advances in Mathematics for Applied Sciences vol. 84, eds. F. Pavese, M. Bär, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono. World Scientific New Jersey.

G. Wübbeler, P. M. Harris, M. G. Cox and C. Elster (2012). Assessment of the GUM S1 Adaptive Monte Carlo Scheme, in "Advanced Mathematical & Computational Tools in Metrology and Testing IX" , Series on Advances in Mathematics for Applied Sciences vol. 84, eds. F. Pavese, M. Bär, J.-R. Filtz, A. B. Forbes, L. Pendrill, K. Shirono. World Scientific New Jersey.

G. Wübbeler, G. J. P. Viquez, K. Jousten, O. Werhahn and C. Elster (2011). Comparison and assessment of procedures for calculating the R(12) line strength of the ν₁ + 2ν₂+ν₃  band CO₂. J. Chem. Phys. 135, 204304.

O. Bodnar, G. Wübbeler and C. Elster (2011). On the application of Supplement 1 to the GUM to non-linear problems. Metrologia 48, 333-342.

K. Klauenberg, B. Ebert, J. Voigt, M. Walzel, J. E. Noble, A. E. Knight and C. Elster (2011). Bayesian analysis of an international ELISA comparability study. Clin. Chem. Lab. Med. 49, 9, 1459-1468. [ download pdf (1183kB) ]

K. Klauenberg, P. G. Blackwell, C. E. Buck, R. Mulvaney, R. Röthlisberger and E. W. Wolff (2011). Bayesian Glaciological Modelling to quantify uncertainties in ice core chronologies. Quaternary Sci Rev.  doi: 10.1016/j.quascirev.2011.03.008. 

C. Elster and B. Toman (2011). Bayesian uncertainty analysis for a regression model versus application of GUM Supplement 1 to the least-squares estimate. Metrologia 48, 233-240.

A. Wiegmann, M. Stavridis, M. Walzel, F. Siewert, T. Zeschke, M. Schulz and C. Elster (2011). Accuracy evaluation for sub-aperture interferometry measurements of a synchrotron mirror using virtual experiments. Precis. Eng. 35, 2, 183-190.

A. Wiegmann, M. Schulz and C. Elster (2011). Absolute Profilmessung optischer Oberflächen mit Mehrfachsensorsystemen. Tech. Mess. 78, 4, S.184-189.

H. Koch, R.-D. Bousseljot, O. Kosch, C. Jahnke, I. Paetsch, E. Fleck and B. Schnackenburg (2011). A reference dataset for verifying numerical electrophysiological heart models. Biomed. Eng. Online, 10:11. [ download pdf (3400KB) ]

I. Romero, E. Fleck and Ch. Kriatselis (2011). Frequency analysis of atrial fibrillation surface and intracardiac electrograms during pulmonary vein isolation. Europace, Technicsal Issues, doi:10.1093/europace/eur104.

S. Eichstädt, C. Elster, T. J. Esward and J. P. Hessling (2010). Deconvolution filters for the analysis of dynamic measurement processes: a tutorial. Metrologia 47, 522-533.

S. Eichstädt, A. Link and C. Elster (2010). Dynamic Uncertainty for Compensated Second-Order Systems. Sensors 2010, 10, 7621-7631. [ download pdf (450 KB) ]

A. Wiegmann, M. Schulz and C. Elster (2010). Improving the lateral resolution of a multi-sensor profile measurement method by non-equidistant sensor spacing. Opt. Express  18, 15807-15819 (2010). [ download pdf (3183 KB) ]

F. Kohl, G. Wübbeler, D. Kolossa, M. Bär, R. Orglmeister and C. Elster (2010). Shifted factor analysis for the separation of evoked dependent  MEG signals. Phys. Med. Biol. 55, 4219-4230.

G. Wübbeler, P. M. Harris, M. G. Cox and C. Elster (2010). A two-stage procedure for determining the number of trials in the application of a Monte Carlo method for uncertainty evaluation. Metrologia 47, 317-324.

S. Leistner, T. H. Sander,  G. Wübbeler, A. Link, C. Elster, G. Curio, L. Trahms and B.-M. Mackert (2010). Magnetoencephalography discriminates modality-specific infraslow signals less than 0.1 Hz. NeuroReport 21, 196-200.

T. H. Sander, T. R. Knösche, A. Schlögl, F. Kohl, C. H. Wolters, J. Haueisen and L. Trahms (2010). Recent advances in modeling and analysis of bioelectric and biomagnetic sources. Biomed. Tech. 55,  65-76.

M. Schulz, G. Ehret, M. Stavridis and C. Elster (2010). Concept, design and capability analysis of the new Deflectometric Flatness Reference at PTB. Nucl. Instr. and Methods in Phys. Res. A616, 134-139.

S. Eichstädt, A. Link, T. Bruns and C.Elster (2010). On-line dynamic error compensation of accelerometers by uncertainty-optimal filtering. Measurement 43,  708-713 .

C. Elster and B. Toman (2010).  Analysis of key comparisons: estimating laboratories' biases by a fixed effects model using Bayesian model averaging. Metrologia 47, 113-119.

C. Elster, A. G. Chunovkina and W. Wöger (2010).  Linking of a RMO key comparison to a related CIPM key comparison using the degrees of equivalence of the linking laboratories. Metrologia 47, 96-102.

A. G. Chunovkina, C. Elster, I. Lira and W. Wöger (2009).  Evaluating systematic differences between laboratories in interlaboratory comparisons. Meas. Tech. 52, 788-793.

A. Wiegmann (2009). Multiple Sensorsysteme zur Topographiebestimmung optischer Oberflächen. Dissertation. [ download pdf (9,50 MB) ]

G. Wübbeler, C. Elster, T. Reichel and R. Judaschke (2009). Determination of the Complex Residual Error Parameters of a Calibrated One-Port Vector Network Analyzer.   IEEE Trans. Instrum. Meas. 58, 9, 3238-3244.

A. Wiegmann, M. Schulz and C. Elster (2009). Suppression of aliasing in multi-sensor scanning absolute profile measurement. Opt. Express 17, 11098-11106. [ download pdf (985KB) ]

C. Elster and A. Link (2009). Analysis of dynamic measurements: compensation of dynamic error and evaluation of uncertainty , in "Advanced Mathematical & Computational Tools in Metrology VIII" , Series on Advances in Mathematics for Applied Sciences vol. 78, eds. F. Pavese, M. Bär, J.M. Limares, C. Perruchet, N.F. Zhang, 80-89, World Scientific New Jersey.

G. Wübbeler, A. Link, T. Bruns and C. Elster (2009). Impact of correlation in the measured frequency response on the results of a dynamic calibration , in "Advanced Mathematical & Computational Tools in Metrology VIII" , Series on Advances in Mathematics for Applied Sciences vol. 78, eds. F. Pavese, M. Bär, J.M. Limares, C. Perruchet, N.F. Zhang, 369-374, World Scientific New Jersey.

I. Lira, C. Elster, W. Wöger and M.G. Cox (2009). Derivation of an output PDF from Bayes’ theorem and the principle of maximum entropy , in "Advanced Mathematical & Computational Tools in Metrology VIII" , Series on Advances in Mathematics for Applied Sciences vol. 78, eds. F. Pavese, M. Bär, J.M. Limares, C. Perruchet, N.F. Zhang, 213-218, World Scientific New Jersey.

A. Link and C. Elster (2009). Uncertainty evaluation for IIR (infinite impulse response) filtering using a state-space approach. Meas. Sci. Technol. 20 , 055104 (5pp).

C. Elster and B. Toman (2009). Bayesian uncertainty analysis under prior ignorance of the measurand versus analysis using the Supplement 1 to the Guide: a comparison. Metrologia 46, 261-266.

R. Inaki, H. Koch, E. Fleck and C. Kriatselis (2008). Study of surface electrocardiogram spectrum before and after pulmonary vein ablation in patients with persistent atrial fibrillation . J. Electrocardiol. , 41, 553-556.

M. Schulz, A. Wiegmann,  A. Márquez and C. Elster (2008). Optical flatness metrology: 40 years of progress. Opt. Pura Apl. 41, 325-331. [ download pdf (2434KB) ]

A. Wiegmann, M. Schulz and C. Elster (2008). Absolute profile measurement of large moderately flat optical surfaces with high dynamic range. Opt. Express 16, 11975-1198. [ download pdf (627KB) ]

C. Elster and A. Link (2008). Uncertainty evaluation for dynamic measurements modelled by a linear time-invariant system. Metrologia 45, 464-473. 

G. Wübbeler, M. Krystek and C. Elster (2008). Evaluation of measurement uncertainty and its numerical calculation by a Monte Carlo method. Meas. Sci. Technol. 19, 084009 (4pp). 

S. Knappe-Grueneberg, A. Schnabel, G. Wübbeler and M. Burghoff (2008). Influence of demagnetization coil configuration on residual field in anextremely magnetically shielded room: Model and measurements. J. Appl. Phys. 103, 07E925.

A. G. Chunovkina, C. Elster,  I. Lira and W.Wöger (2008).  Analysis of key comparison data and laboratory biases. Metrologia 45, 211-216.

F. Seifert, G.Wübbeler, S.Junge, B.Ittermann and H. Rinneberg (2007). Patient Safety Concept for Multichannel Transmit Coils. J. Mag. Res. Imag. 26, 1315-1321.

C. Elster, A. Link and T. Bruns  (2007). Analysis of dynamic measurements and determination of time-dependent measurement uncertainty using a second-order model. Meas. Sci. Technol. 18, 3682-3687.

I. Lira, C. Elster and W.Wöger (2007). Probabilistic and least-squares inference of the parameters of a straight-line model. Metrologia 44, 379-384.

G. Wübbeler, A. Link, M. Burghoff, L. Trahms, C. Elster (2007). Latency analysis of single auditory evoked M100 responses by spatio-temporal filtering. Phys. Med. Biol. 52, 4383-4392.

C. Elster, W. Wöger and M. G. Cox (2007). Draft GUM Supplement 1 and Bayesian analysis. Metrologia 44, L31-L32.
 
G. Wübbeler, M. Stavridis, D. Kreiseler,  R.-D. Bousseljot and C. Elster (2007). Verification of humans using  the electrocardiogram. Pattern Recogn. Lett.   28, 1172-1175.

C. Elster (2007). Calculation of uncertainty in the presence of prior knowledge. Metrologia 44, 111-116.

A. Link, A. Täubner, W. Wabinski, T. Bruns and C. Elster (2007). Modelling accelerometers for transient signals using calibration measurements upon sinusoidal excitation. Measurement 40,  928-935.

A. Link, M. Burghoff, A. Salajegheh, D. Poeppel, L. Trahms and C. Elster (2007). Comparing a template approach and complex bandpass filtering for single-trial analysis of auditory evoked M100 . Biomed. Tech. 52, 106-110.

A. Link, M. Kobusch, T. Bruns and C. Elster (2006). Modellierung von Kraft- und Beschleunigungsaufnehmern für die Stoßkalibrierung . Tech. Mess. 73, 675-683.

H.-J. von Martens, C. Elster, A. Link, A. Täubner and T. Bruns (2006). EUROMET.AUV.V-K1, Final report on the key comparison. Metrologia 43, (Tech. Suppl.) 09002.

R. D. Geckeler, A. Fricke and C. Elster (2006). Calibration of angle encoders using transfer functions. Meas. Sci. Technol. 17, 2811-2818.

C. Elster, I. Weingärtner and M. Schulz (2006). Coupled  distance sensor systems for high-accuracy topography measurement: Accounting for scanning stage and systematic sensor errors. Precis. Eng. 30, 32-38.

A. Link, A. Täubner, W. Wabinski, T. Bruns and C. Elster (2006). Calibration of accelerometers: determination of amplitude and phase response upon shock excitation. Meas. Sci. Technol. 17, 1888-1894.

S. Leistner, G. Wübbeler, L. Trahms, G. Curio and  B.-M. Mackert (2006). Tonic neuronal activation during simple and complex finger movements analyzed by DC-magnetoencephalography. Neurosci. Lett. 394, 42-47.

M. Schulz and C. Elster (2006). Tracable multiple sensor system for measuring curved surface profiles with high accuracy and high lateral resolution. Opt. Eng. 45, 060503.

C. Elster, W. Wöger and M. Cox (2005). Analysis of key comparison data: Unstable travelling standards. Meas. Tech.   48, 883-893.

C. Elster, F. Schubert, A. Link, M. Walzel, F. Seifert and H. Rinneberg (2005). Quantitative magnetic resonance spectroscopy: Semiparametric modeling and determination of uncertainties.   Magn. Reson. Med. 53, 1288-1296.

R. A. Nicolaus, C. Elster (2005). Diameter determination of Avogadro spheres #1 and #2 .   IEEE Trans. Instrum. Meas. 54, 872-876.

A. Link, W. Wabinski, H.-J. von Martens (2005). Identifikation von Beschleunigungsaufnehmern mit hochintensiven Stößen. Tech. Mess. 72, 153-160.

M. Burghoff, A. Link, A. Salajegheh, C. Elster, D. Poeppel,  L. Trahms (2005). A template-  free approach for determing the latency of single events of auditory evoked M100. Phys. Med. Biol. 50, N43-N48.

R.-D. Bousseljot and D. Kreiseler (2005). Telemetric ECG evaluation using Einthoven-Leads. Comput. Cardiol.  32, 57-60.

J. Gerhardt, R. Geckeler, M. Schulz and C. Elster (2005). High-accuracy profile form measurement by scanning system consisting on an angle sensor and coupled distance sensors . Proc. SPIE 5856, 385-392.

H.-J. von Martens, W. Wabinski, A. Link, H.-J. Schlaak, A. Täubner and U. Göbel (2005). Fortschritte bei Schwingungs- und Stoßkalibrierung mittels Laserinterferometrie . Tech. Mess. 72, 141-152.

L. Schmitz and M. Burghoff (2005). Magnetocardiography in a fetus with Long-QUT syndrome. Circulation 112, e68-e69.

Publikationen 1999 - 2004