Evidence map›Paper›PMID 31093486›Full record

ArticleActa IMEKO (2012)2017

Progress on vacuum-to-air mass calibration system using magnetic suspension to disseminate the Planck-constant realized kilogram.

Eric C Benck, Corey Stambaugh, Edward C Mulhern, Patrick J Abbott, Zeina J Kubarych

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Acta IMEKO (2012), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Nanometer Positional Control using Magnetic Suspension for Vacuum-to-Air Mass Metrology.Journal of dynamic systems, measurement, and control · 2018
    Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Eric C BenckMass and Force Group, National Institute of Standards and Technology, 100 Bureau Dr., MS 8221, Gaithersburg, MD 20899, United States.
Corey StambaughMass and Force Group, National Institute of Standards and Technology, 100 Bureau Dr., MS 8221, Gaithersburg, MD 20899, United States.
Edward C MulhernMass and Force Group, National Institute of Standards and Technology, 100 Bureau Dr., MS 8221, Gaithersburg, MD 20899, United States.
Patrick J AbbottMass and Force Group, National Institute of Standards and Technology, 100 Bureau Dr., MS 8221, Gaithersburg, MD 20899, United States.
Zeina J KubarychMass and Force Group, National Institute of Standards and Technology, 100 Bureau Dr., MS 8221, Gaithersburg, MD 20899, United States.

Funding

Intramural NIST DOC 9999-NIST
6 · The paper itself

Abstract

The kilogram is the unit of mass in the International System of units (SI) and has been defined as the mass of the International Prototype Kilogram (IPK) since 1889. In the future, a new definition of the kilogram will be realized by fixing the value of the Planck constant. The new definition of the unit of mass will occur in a vacuum environment by necessity, so the National Institute of Standards and Technology (NIST) is developing a mass calibration system in which a kilogram artefact in air can be directly compared with a kilogram realized in a vacuum environment. This apparatus uses magnetic suspension to couple the kilogram in air to a high accuracy mass balance in vacuum.

Indexed as

magnetic suspensionmass metrologyPlanck constantrevised SISI unitswatt balance

Identifiers

PMID31093486
PMCPMC6512996

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.