Measurement & replication

Milligram mass metrology using an electrostatic force balance

2016 · Published laboratory metrology experiment

Measured evidence

What this work contributes

Uses a concentric cylindrical capacitor to link electrical and length measurements to reference force. Weighing experiments illustrate how a small-force measurement can have a traceability chain instead of relying on nominal sensor resolution.

Where the evidence stops

The reported mass measurements were limited by artifact stability and changes in adsorbed surface layers during vacuum-to-air transfer. A new apparatus requires its own calibration and uncertainty budget.

Keep the conditions with the result

Measured / modeled quantity
Mass realized through an electrostatic reference force
Reported scale
1 mg and 20 mg artifacts; numerical uncertainty not extracted.
Conditions
Electromechanical balance using a vacuum-gap capacitor; artifact transfer between vacuum and air.
Evidence context
Comparison with kilogram-subdivision methods reported; independent replication not assessed here.
Design use
Plan calibration transfer and surface-condition controls before choosing a force sensor.
Review access
Institutional abstract and bibliographic metadata inspected; full text not reviewed.

Original source

Gordon A. Shaw, Julian Stirling, John A. Kramar, Alexander D. Moses, Patrick J. Abbott, Richard L. Steiner, Andrew D. Koffman, Jon R. Pratt, Zeina J. Kubarych. Milligram mass metrology using an electrostatic force balance. Metrologia 53, A86 (2016).

DOI: 10.1088/0026-1394/53/5/A86

How we use it

This record belongs to Measurement & replication. Its evidence label describes the cited work, not the maturity of a Metric Flight device. Follow the original methods, corrections and conditions before transferring a result to a different geometry or scale.

Editorial note reviewed 19 October 2026. AI assisted research discovery and synthesis. Citation metadata and claims were checked against primary publication or institutional records; full-text access varies. Read the source for the complete method.