Design of a Newton’s constant G measurement system using a torque generation machine based on the principle of Kibble balance

Abstract

The measurement of Newton's constant G has a relatively long history. However, G is the fundamental physical constant with the largest uncertainty of any fundamental physical constant up to now. To resolve the discrepancies in the value of G, a measuring system based on a new principle is needed. In this paper, we describe the development of a new machine for generating nano-torque by electromagnetic force based on the principle of the Kibble balance method, and a new method for measuring G using this machine.

Keywords

• Newton's constant
• Fundamental physical constant
• Kibble balance
• Torque
• Electromagnetic force