Metrologia

Papers
(The median citation count of Metrologia is 1. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-07-01 to 2025-07-01.)
ArticleCitations
Calibration of gauge blocks by optical interferometry comparison - final report74
SIM Thermocouple Type S Supplementary Comparison30
Report on EURAMET supplementary comparison on measurement of a 1 mm stage micrometer28
Adoption of ICRU report 90 recommendations in the Canadian Co-60 air-kerma primary standard21
Report of the CCRI(II) supplementary international comparison of measurement of activity per unit mass of Cs-134 and Cs-137 in wheat flour (CCRI(II)-S13)20
Measurement of melting and freezing temperature of iron using radiation thermometry19
Corrigendum: Detection and identification of faults in clock ensembles with the generalized likelihood ratio test (2022 Metrologia 59 045010)18
SIM supplementary comparison on calibration of conventional mass of a 20 kg weight17
Key comparison CCQM-K179 - polar analyte in solid organic material: mass fraction of oxytetracycline hydrochloride salt17
Absolute frequency measurement of a Lu+ (3D1) optical frequency standard via link to international atomic time16
Final report of the supplementary comparison between NIMT and LNE on pressure standards in the range 50 MPa to 500 MPa of hydraulic gauge pressure16
Update of the BIPM comparison BIPM.RI(II)-K1.Ga-67 of activity measurements of the radionuclide 67Ga to include the 2023 result of the CMI (Czechia)15
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with EMPA, June 202314
Acoustic measurement of the triple point of neon T Ne and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry14
Final report on the EURAMET key comparison EURAMET AUV.V-K514
Final Report on key comparison EURAMET.M.P K4.2020 in the range from 1 Pa to 15 kPa of absolute and gauge pressure14
Relating SI units to the ‘defining constants’14
CIPM key comparison of viscosity CCM.V-K413
Final report of CCQM-K96.2023: assay of potassium dichromate13
Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the BFKH, Hungary, and the BIPM in low-energy x-rays13
Comparison between four integer ambiguity resolved PPP GNSS time transfer software solutions13
Final report of APMP.AUV.V-S1: supplementary comparison on calibration of laser tachometers using mechanical generators12
Update of the BIPM comparison BIPM.RI(II)-K1.Sn-113 of activity measurements of the radionuclide 113Sn to include the 2017 result of the LNE-LNHB (France)12
Report on comparison EURAMET.M.M-S10 (comparison of sub-multiples of the kilogram)12
Bilateral comparison of 1 Ω and 10 kΩ standards (ongoing BIPM key comparison BIPM.EM-K13) between the NPLI (India) and the BIPM12
APMP key comparison of AC-DC current transfer standards: final report12
Bilateral Comparison of 1.018 V and 10 V Standards between the SMD (Belgium) and the BIPM, October to December 2021 (part of the ongoing BIPM key comparison BIPM.EM-K11)11
Characterization of the LED filament lamp for luminous intensity calibration11
Key comparison BIPM.RI(I)-K7 of the air-kerma standards of the BFKH, Hungary, and the BIPM in mammography x-rays11
CCQM-K68.2019, nitrous oxide (N2O) in air, ambient level, final report11
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the GUM, Poland and the BIPM in 137Cs gamma radiation11
Comparison of low air speed facilities11
Detection and identification of faults in clock ensembles with the generalized likelihood ratio test11
Discussion on the calculation of the uncertainties of [UTC-UTC(k)]11
NTSC SrII optical lattice clock with uncertainty of 2 10
Determining the calibration factor of Rn-220 by low-pressure scintillation cell10
High precision roundness measurement by error separation techniques (EURAMET.L-S30)10
The irony of the magnet system for Kibble balances—a review10
EURAMET.M.FF-S13 final report10
Corrigendum: Uncertainty of the measurement of the frequency dependence of four-terminal pair capacitance with a four-channel vector network analyzer (2025 Metrologia 62 025011)10
Report on the APMP key comparison of hydrometer calibrations APMP.M.D-K410
Comparison in dynamic primary calibration of digital-output accelerometer between CEM and PTB10
Series connection of quantum Hall resistance array and programmable Josephson voltage standard for current generation at one microampere9
ITS-90 reproducibility, xenon fixed point substitution and new interpolating equations between 13.8033 K and 273.16 K9
Economic optimization of acceptance interval in conformity assessment: 1. Process with no systematic effect9
Comparison of blackbody for clinical infrared ear thermometers9
CCM.G-K2.2023: CIPM key comparison of absolute gravimeters8
Autocollimators: plane angle measurand ambiguities and the impact of surface form8
Final report on the supplementary comparison EURAMET.AUV.V-S28
Machine learning based priors for Bayesian inversion in MR imaging8
Key comparison CCQM-K148.b - polar analyte in solid organic material: mass fraction of oxytetracycline8
The unusual status of the hectare in the SI7
Final report on key comparison APMP.M.P-K7.2 in hydraulic gauge pressure from 10 MPa to 100 MPa7
Achievement of 0.005% combined transfer uncertainties in the NIST detector calibration facility7
High polarity analyte(s) in aqueous media: Determination of L-PFOA and L-PFOS in ground water7
Traceable characterisation of fibre-coupled single-photon detectors7
The forgotten (?) potentiometric method in thermometry7
A proposal for three categories of units within the SI7
Phase shifting angle interferometer6
Measurement model of circadian action factor of phosphor-converted white LEDs based on photometric, electrical, and thermal properties6
A new interpolation equation in the ITS-90 subrange from the triple point of water to the freezing point of indium6
Bilateral comparison of 10 pF and 100 pF standards (ongoing BIPM key comparisons BIPM.EM-K14.a and 14.b) between the NMIM (Malaysia) and the BIPM6
Gas viscosities from a semiconductor-manufacturing mass-flow controller6
Evaluation of the transportable atom gravimeter HUST-QG6
Ambient humidity, the overlooked influencer of radioactivity measurements6
Report on APMP key comparison: calibration of line scale (APMP.L-K7)6
Dual-mode room temperature self-calibrating photodiodes approaching cryogenic radiometer uncertainty6
Final report for CCQM-P212: coherence of carbon isotope delta reference materials6
Room temperature dual-mode internal quantum deficiency measurement with propagated uncertainty to 0.03% (k = 2)6
Accurate characterisation of optical diffuse transmission—primary facility and extension to translucent samples6
Final report on the CCM key comparison of kilogram realizations CCM.M-K8.20215
Bilateral comparison in torque transducer calibration between CENAM, Mexico and CEM, Spain, SIM.M.T-S15
AFRIMETS.AUV.A-S2 final report, calibration of a multi-function acoustic calibrator5
Final report, On-going Key Comparison BIPM.QM-K1, Ozone at ambient level, comparison with NIM Oct.20235
Activity measurements of the radionuclides 99mTc, 18F and 64Cu for the POLATOM, Poland, in the ongoing comparisons BIPM.RI(II)-K4 series and KCRV update in the corres5
Pilot study CCQM-P172 – spectroscopic methods for HNO3 value assignment5
Key comparison COOMET.QM-K120 "Carbon dioxide in air at urban level (480–800) μmol/mol"5
Primary thermometry at 4 K, 14 K, and 25 K applying dielectric-constant gas thermometry5
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with NIST, July 20225
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the NMIJ, Japan, and the BIPM in 60Co gamma radiation5
Facility for calibrating anemometers as a function of air velocity vector and turbulence5
Continuous IPPP links for UTC5
Erratum: Metrological characterization of a commercial single-photon source with high photon flux emission (2024 Metrologia 61 054001)5
Continuous GPS PPP-AR frequency transfer links5
Linkage for Metrosert to CCT-K9 via the EURAMET-T.K9.1 bilateral comparison5
Multi-taper-based automatic correction of non-anechoic antenna measurements5
Key comparison CCEM.RF-K27.W of RF power from 50 GHz to 75 GHz in rectangular waveguide5
Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge5
International comparison CCQM-K165: dimethyl sulfide in nitrogen at 5 nmol mol-15
Measurement science meets the reproducibility challenge5
Precision control of resistive power in Kibble balance coils: an advanced method for minimizing temperature-related magnetic errors5
Accurate density measurement of a small solid sample using a combination of hydrostatic weighing and pressure-of-flotation methods5
Update of the BIPM comparison BIPM.RI(II)-K1.Co-57 of activity measurements of the radionuclide 57Co to include the 2023 result of the BEV (Austria)5
Power of a test for assessing interlaboratory consensus of nominal and ordinal characteristics of a substance, material, or object5
Gonioreflectometer for measuring 3D spectral BRDF of horizontally aligned samples with traceability to SI4
Calibration of GNSS stations for UTC4
The new mise en pratique for the metre—a review of approaches for the practical realization of traceable length metrology from 10−11 m to 1013 m4
CCQM-P206, nitrous oxide (N2O) in air, ambient level, pilot study run in parallel with CCQM-K68.20194
Bilateral comparison of irradiance scales between PMOD/WRC and PTB for longwave downward radiation measurements4
Key comparison BIPM.RI(I)-K5 of the air-kerma standards of the BEV, Austria and the BIPM in 137Cs gamma radiation4
Automatic alignment technique for the suspended coil in the joule balance4
Corrigendum: Refractive index gas thermometry between 13.8 K and 161.4 K (2021 Metrologia 58 025008)4
First evaluation of the primary frequency standard NTSC-CsF24
Comparison of PLTS-2000 and the Magnetic Field Fluctuation Thermometer at LNE-Cnam4
Bilateral comparison of 1.018 V and 10 V standards between CSIR-NPL (India) and the BIPM, April to June 2022 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)4
International comparison CCQM-K3.2019 automotive exhaust gases4
A Bayesian statistical method for large-scale MEMS-based sensors calibration: a case study on 100 digital accelerometers4
Key comparison study on peptide purity - glycated hexapeptide of HbA1c4
Final report on the APMP regional comparison of type R thermocouples calibration at Cu, Co-C and Pd fixed points, APMP.T-S164
APMP key comparison of luminous intensity (APMP.PR-K3.a): final report4
Key comparison study - organic solvent calibration solution - gravimetric preparation and value assignment of deoxynivalenol (DON) in acetonitrile (ACN)4
Precision measurement of an electron pump at 2 GHz; the frontier of small DC current metrology4
Final report on EURAMET key comparison EURAMET.M.D-K2.2 (1523)4
A proposal to change the leap-second adjustments to coordinated universal time4
Assay of sodium carbonate4
Primary standard for traceability in low liquid hydrocarbon fuel flow rates4
Key comparison BIPM.RI(I)-K8 of high dose-rate 192Ir brachytherapy standards for reference air kerma rate of the NIM and the BIPM4
Supplementary comparison for the traceability of AC high voltage reference measuring systems up to 200 kV (EURAMET.EM-S33)4
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the NRC, Canada and the BIPM in accelerator photon beams4
Advancements in the NRC-FCs2 primary frequency standard3
CIPM key comparison CCPR-K1.a.2017 for spectral irradiance 250 nm to 2500 nm. Final report3
Final report of CCQM-K96.2023.1: assay of potassium dichromate3
AFRIMETS supplementary comparison on pin gauges3
Comparison of primary standards for liquid flow - flow range (0.1 to 10) µL/min3
Developing calibration and measurement capabilities for atmospheric CH4 stable isotope ratios at NMIs/DIs: metrology for global comparability3
Analysis of reproducibility by using inclusive and exclusive statistics in the framework of a bilateral comparison3
Activity measurements of the radionuclides 18F, 64Cu and 99mTc for the ANSTO, Australia, in the ongoing comparisons BIPM.RI(II)-K4 series and KCRV update in the corre3
Report on the AFRIMETS.M. F-S1 supplementary force comparison for 10 kN and 100 kN3
Measurement of average mass attenuation coefficient of air for 137Cs gamma-ray irradiation beam3
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the KRISS, Republic of Korea and the BIPM in 60Co gamma radiation3
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with INRIM, February 20223
A two-capillary viscometer for temperatures up to 473 K and pressures up to 100 MPa—operation and verification at low pressure3
Report on the key comparison, CCM.F-K23 in force at 200 N and 500 N3
Bilateral key comparison EURAMET.EM-K11.1 "AC-DC Voltage Transfer Difference at Low Voltages"3
Bilateral supplementary comparison of high voltage transformer measuring systems3
Comparison of methods to determine the fluence of monoenergetic neutrons in the energy range from 30 keV to 14.8 MeV3
GPS PPP-AR frequency transfer and its application for comparing atomic fountain primary frequency standards between NRC and PTB3
Method to traceably determine the refractive index by measuring the angle of minimum deviation3
Comparison of standards for the calibration of stopwatches3
Calibration of an ionisation chamber for parent–progeny decay3
Phase-stepping interferometry for parallelism measurement of step gauge faces3
An assessment of the ageing of the absolute spectral responsivity of trap detectors at krypton ion laser emission wavelengths3
Comment on ‘On the dimension of angles and their units’3
Observation of systematic deviations between Faraday cup aerosol electrometers for varying particle sizes and flow rates—results of the AEROMET FCAE workshop3
Comparison report between NIM and CMS of the ITS-90 realization at the triple point of argon3
Practical realisation of the kelvin by Johnson noise thermometry3
A constant pressure flowmeter for extreme-high vacuum3
Final report of CCQM-P204, comparison on CO2 isotope ratios in pure CO23
New impedance bridge at LNE for the two terminal-pair AC resistor calibration up to 20 kHz3
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with CMS/ITRI, March 20243
Final report "Key comparison CCM.FF-K1.2015 - water flow: 30 m3/h ... 200 m3/h"3
Long-term stability of molecular doped epigraphene quantum Hall standards: single elements and large arrays (R K/236 ≈ 109 Ω)3
Final report of CCQM-K157 for the measurement of the amount of substance of HfO2 expressed as the thickness of nm films3
Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the GUM, Poland, and the BIPM in low-energy x-rays3
Torque euramet supplementary comparison EURAMET.M.T-S4 (Euramet Project 1304) from 0.1 N·m to 5 N·m and from 5 N·m to 50 N·m3
Remote time and frequency calibration with holdover traceability from a new treatment of non-white noise in rubidium clocks3
Key comparisons of air kerma and absorbed dose to water standards in 60Co radiation beam (EURAMET.RI(I)-K1.3 and EURAMET.RI(I)-K4.3)3
Reply to Comment on ‘On the dimension of angles and their units’2
A bilateral comparison of NIST and PTB laser power standards for scale realization confidence by gravitational wave observatories2
Phase transition behavior of pure Fe cells for thermocouple calibration2
Measurement of bidirectional transmittance distribution function in the visible and near-infrared spectral range2
Subsequent bilateral key comparison study - organic solvent calibration solution - gravimetric preparation and value assignment of aflatoxin B1 (AfB1) in acetonitrile (ACN)2
Supplementary comparison CCRI(I)-S3 of standards for absorbed dose to water in 60Co gamma radiation at radiation processing dose levels2
Repeatability of a primary thermometer and calibration of resistance thermometers between 5 K and 25 K2
International comparison CCQM-P229 pilot study to measure line intensities of selected 12C16O transitions2
Primary calibration for airborne infrasound utilizing the vertical gradient of the ambient pressure2
Noise-induced servo errors in optical clocks utilizing Rabi interrogation2
EURAMET supplementary comparison EURAMET.L-S26.1, measurement of groove depth standards in the range 5 μm up to 0.9 mm2
SIM.T-K9.3: Standard platinum resistance thermometer ITS-90 realizations from the Hg triple point to the Zn freezing point2
On modelling of artefact instability in interlaboratory comparisons2
Bilateral comparison of 1.018 V and 10 V standards between DEFNAT (Tunisia) and the BIPM, April to June 2022 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)2
CCQM-K176 breast cancer biomarker HER2 copy number variation (CNV) measurement2
Bilateral comparison of 1.018 V and 10 V standards between INRIM (Italy) and the BIPM, November to December 2023 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)2
Iodine frequency-stabilized HeNe laser amplified by injection locking of a semiconductor laser diode2
Update of the BIPM comparison BIPM.RI(II)-K1.Tl-201 of activity measurements of the radionuclide 201Tl to include the 2011 result of the NIST (United States)2
Characterization of laser-pumped Cs-4He atomic magnetometer2
Calibration of angle standards2
APMP.QM-S19: Toxic elements in seafood2
Comparison of partial discharge (PD) calibrators from 0.1 pC to 10 nC2
CCQM-K158 elements and inorganic arsenic in rice flour2
Final report on GULFMET supplementary comparison of high current transformer measuring systems (GULFMET.EM-S7)2
COOMET key comparison COOMET.PR-K1.a.2018 for spectral irradiance 250 nm to 2500 nmm, final report2
The isotopic composition of the new enriched silicon crystal Si28-31Pr11: maintaining the realization and dissemination of the mole and the kilogram via the XRCD method2
Comparison BIPM.RI(I)-K6 of the standards for absorbed dose to water of the ARPANSA, Australia, and the BIPM in accelerator photon beams2
Report of subsequent key comparison CCQM - K73.2018.2 amount content of H+ in hydrochloric acid (0.1 mol/kg-1)2
Evaluation of the relativistic redshift in frequency standards at KRISS2
Final report on key comparison APMP.AUV.A-K52
ITS-90 SPRT calibration from the Ar TP to the Zn FP2
Thermodynamic effects in a gas modulated Invar-based dual Fabry–Pérot cavity refractometer2
Calibration of the microphone sensitivity below 0.5 Hz using the liquid-column-type sound pressure generator2
High polarity analyte(s) in aqueous media: determination of L-PFOA and L-PFOS in ground water2
Traceable spectral interferometry for length measurement2
APMP supplementary international comparison of activity measurement of Cs-134 and Cs-137 in brown rice2
AFRIMETS supplementary comparison on calibration of dial gauge2
Speed of sound measurements and derived third and fourth acoustic virial coefficients of supercritical neon2
A test of measurement results with increased sensitivity to inconsistency2
Characterization of the collisional frequency shift in an atomic fountain clock using absorption imaging2
Elements in lipstick material2
Final report on CCQM-K167: carbon isotope delta measurements of vanillin2
A robust time scale for space applications using the student’s t-distribution2
A three-cornered hat analysis of instabilities in two-way and GPS carrier phase time transfer systems2
Speedy in-situ magnetic field compensation algorithm for multiple-channel single-beam SERF atomic magnetometers2
Supplementary comparison of the measurement of the alpha and beta particle surface emission rates from large area sources (CCRI(II)-S10 LASCE)2
Absolute frequency measurement of the 87Sr optical lattice clock at NTSC using international atomic time2
PAWG pilot study on quantification of total haemoglobin in blood2
Supplementary comparisons of national standards of ratio error and phase displacement of AC voltage of power frequency COOMET 411/RU-a/07 (COOMET.EM-S6)2
EURAMET.T-K9 regional key comparison ITS-90 SPRT calibration from the Ar TP to the Zn FP2
Final report, on-going key comparison BIPM.QM-K1, ozone at ambient level, comparison with NIMT, September 20222
Extension to the range of prefixes for binary multiples2
Update of the BIPM comparison BIPM.RI(II)-K1.Ba-133 of activity measurements of the radionuclide 133Ba to include the 2016 result of the NRC (Canada), the 2018 result of the TENMAK-NÜKEN (T2
Statistics for quantifying aging in time transfer system delays1
Final report on EURAMET key comparison EURAMET.M.D-K2.1 (1522)1
Absolute frequency measurement of a Yb optical clock at the limit of the Cs fountain1
Traceability for nuclear medicine: the status of primary radioactivity standards1
On the rationale for recent updates to the SI Brochure concerning angles and quantities with the unit one1
Final report on the key comparison CCAUV.A-K61
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NMIJ, Japan and the BIPM in 60Co gamma radiation1
Small mass value realization equivalent to accuracy class E1 using the Planck-Balance at PTB1
Final report of APMP.AUV.V-S2: supplementary comparison on calibration of laser tachometers using mechanical generators or optical simulators1
EURAMET Key Comparison EURAMET.M.D-K4.2020: Hydrometer calibration comparison from 600 kg/m3 to 2000 kg/m31
Corrigendum: Corrections to a proposal for three categories of units within the SI (2024 Metrologia 61 033001)1
Thickness and refractive index measurements of a thin-film using an artificial neural network algorithm1
APMP.M.H-S5 final report of the supplementary comparison of Brinell hardness1
CCAUV.W-K2 final report - key comparison CCAUV.W-K2: calibration of hydrophones in the frequency range from 250 Hz to 500 kHz1
Economic optimization of acceptance interval in conformity assessment: 2. Process with unknown systematic effect1
Angles in the SI: a detailed proposal for solving the problem1
Role of measurement uncertainty in the comparison of average areal rainfall methods1
CCQM-K161 "Anions in Seawater"1
Traceable methods for calibrating condensation particle counters at concentrations down to 1 cm−31
Evaluations of the decay data of 52Mn, 52mMn, 124I and 131Cs from the Decay Data Evaluation Project (DDEP)—20211
International comparison CCQM-K150: particle number concentration (100 to 20 000 cm-3) and particle charge concentration (0.15 to 3 fC cm-3)1
Key comparison study on peptide purity - hexapeptide of HbA01
Final report for SIM.QM-S12: supplementary comparison for trace elements in natural water1
Comment on ‘A proposal to change the leap-second adjustments to UTC’1
Supplementary comparison of national standard instruments in the field of magnetic flux density and magnetic flux measurements by sensing coils1
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with NMC-A*STAR, July 20221
Final report, ongoing key comparison BIPM.QM-K1, ozone at ambient level, comparison with VSL, April 20241
Femtosecond-comb based 10 MHz-to-optical frequency link with uncertainty at the 10−18 level1
On the dimension of angles and their units1
Instrumentation and uncertainty evaluation for absolute characterization of thin films and nanostructured surfaces in advanced optical metrology1
Development and implementation of an automated four-terminal-pair Josephson impedance bridge1
Bilateral comparison of 1.018 V and 10 V standards between the NSAI (Ireland) and the BIPM, May to June 2024 (part of the ongoing BIPM key comparison BIPM.EM-K11.a and b)1
CCQM-K160: platinum group elements in automotive catalyst1
Key comparison BIPM.RI(I)-K1 of the air-kerma standards of the NIST, USA and the BIPM in 60Co gamma radiation1
APMP key comparison report of air kerma for 137Cs (APMP.RI(I)-K5)1
Final report for CCQM-K133: Low-polarity analytes in plastics-phthalate esters in polyvinyl chloride (PVC)1
COOMET regional comparison of the national standards of air kerma for x-radiation qualities used for radiation protection and diagnostic radiology (COOMET.RI(I)-S3)1
Comparison of four-terminal-pair 1 pF, 10 pF, 100 pF and 1000 pF capacitance standards at frequencies of 10 kHz, 100 kHz, 1 MHz and 10 MHz (APMP.EM-S15)1
Bilateral key comparisons of dew point temperature standards of national metrological institutes1
Key comparison BIPM.RI(I)-K4 of the absorbed dose to water standards of the NRC, Canada and the BIPM in 60Co gamma radiation1
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