Work

Leveraging the revised International System of Units: torque from the fundamental constants

Year: 2025

Type: article

Abstract: Calibration of tools designed to apply known torques, such as torque wrenches and torque screwdrivers, requires a chain of traceable standards to the definition of the kilogram and meter derived from the revised International System of Units (SI) via physical mass and length artifact standards. We present a detailed description and experimental verification of a device which utilizes the Kibble principle to directly realize torques up to 1 N m. The second generation Electronic NIST Torque Realizer (ENTR_v2) can calibrate industrial torque tools to 0.1% accuracy or better ultimately traceable to the fixed value of the Planck constant within the revised SI through electrical traceability chains, severing ties to the traditional physical transfer standard artifacts of length and mass.

Source: Metrologia

DOI: 10.1088/1681-7575/ae029a

Authors: Zane Comden, Stephan Schlamminger, Frank Seifert, Kumar Arumugam, Chandra B Shahi, David B Newell, Leon S Chao

Institutions: National Institute of Standards and Technology, University of Maryland, College Park, Johns Hopkins University

Language: English

Topic: Scientific Measurement and Uncertainty Evaluation

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: hybrid

Estimated APC paid: $3,325

OpenAlex ID: W4413962916

FWCI:

Cites: 7

Cited by:

Related to: 10