Extended Cases of Laboratory Generated Gravitomagnetic Field Measurement Devices

Abstract

A method is described for creating a measurable unbalanced gravitational acceleration using a gravitomagnetic field surrounding a superconducting toroid. A gravitomagnetic toroid for unbalanced force production has been experimentally realized as quite impractical. However recent advances in nanorod superconducting wire technology has enabled a new class of SMES devices operating at current densities and magnetic field strengths sufficient to develop measurable gravitomagnetic fields, while still maintaining mechanical integrity. It is proposed that an experimental SMES toroid configuration uses an absolute quantum gravimeter to measure acceleration fields along the axis of symmetry of a toroidal coil, thus providing experimental confirmation of the additive nature of the gravitomagnetic fields, as well as the production of a linear component of the overall acceleration field. In the present paper relativistic enhancement of this effect is also explored, as well as alternating current (AC) operations of the superconducting toroid to create gravitational waves. Lorentz force concerns are also addressed in Appendix.

High Index SMES Device for Gravitomagnetic Field Generation

“…where η is gravitomagnetic permeability, o r η η η = as described in reference [2], N is number of turns in the toroid coil winding, T  represents the mass flow, r is the cross sectional radius of the toroid, and R is the overall radius of the toroid.…”

“…We further add additional assumptions regarding to what extent conductors are wrapped around the toroid shaped device to determine constraints on the number of conductive loops that can be accommodated using the technology described in [2]. As shown in Figure 5 via cross section we assume here a conductor winding depth of 0.1 cm.…”

“…For the nanowire assumed in Ref. [2], J = 250 MA/m 2 . Cross sectional area A c = 7.854 × 10 −9 m 2 as given in Equation (10).…”

“…When Forward [1] first proposed a gravitomagnetic toroid for unbalanced gravitational force production in 1962 that any experimental realization was quite impractical. However, recent advances in high temperature superconducting (HTSC) nanorod wire (nanowire) technology, described recently by Stephenson et al [2] and Rieken et al [3], have enabled a new class of superconducting magnetic energy storage (SMES) devices operating at current densities sufficient to develop measurable gravitomagnetic fields.…”