A New Spin on Kibble: A Self Calibrating Torque Realization Device at NIST

Published

June 3, 2022

Author(s)

Zane Comden, Stephan Schlamminger, Charles Waduwarage Perera, Frank Seifert, David B. Newell, Jay H. Hendricks, Barbara L. Goldstein, Leon Chao

Abstract

After the 2019 redefinition of the International System of Units (SI), torque no longer needs to be traceable to a calibrated weight suspended from a known lever arm. Specifically, a modification of the Kibble principle used for realizing the kilogram allows for direct realization of torque via electrical measurements traceable to the revised SI. A recent NIST/US Air Force collaborative effort to design, construct and characterize a self-calibrating electromechanical instrument mainly consisting of a tabletop-sized permanent magnet-electromagnet system aimed at generating 1 mN m to 1 N m with 0.1% accuracy for directly calibrating torque tools is underway. This instrument, the Electronic NIST Torque Realizer, is intended to replace the current torque standards of mass and length, and put primary torque realization standards in the hands of calibration facilities.

Proceedings Title

euspen's 22nd International Conference & Exhibition

Conference Dates

May 30-June 3, 2022

Conference Location

Geneva, CH

Pub Type

Conferences

Download Paper

Local Download

Keywords

metrology, torque, Kibble

Citation

Comden, Z. , Schlamminger, S. , Waduwarage Perera, C. , Seifert, F. , Newell, D. , Hendricks, J. , Goldstein, B. and Chao, L. (2022), A New Spin on Kibble: A Self Calibrating Torque Realization Device at NIST, euspen's 22nd International Conference & Exhibition, Geneva, CH, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934222 (Accessed April 24, 2024)