Comparison of Compensation Mechanism Between an NMR Gyroscope and an SERF Gyroscope -- Equivalence of NMR and SERF gyroscopes

TL;DR

This paper demonstrates a common model for NMR and SERF atomic gyroscope types, comparing their output signals to guide optimization and inspire hybrid schemes, despite unresolved issues like bandwidth and drift.

Contribution

It establishes an equivalence model between NMR and SERF gyroscopes and compares their signals to aid in design choices and future innovations.

Findings

NMR and SERF gyroscopes share a common model.

Direct comparison of their output signals is provided.

The work offers guidance for optimizing atomic gyroscope schemes.

Abstract

There are two kinds of atomic vapor cell gyroscopes, one is nuclear-magnetic-resonance (NMR) gyroscope and the other is spin-exchange-relaxation-free (SERF) gyroscope. We demonstrate that there is a common model for these two kinds of gyroscope. The output signals of NMR and SERF gyroscopes are compared directly, which provides an important guidance for the scheme choosing and optimization of atomic gyroscope. Although this expose of the equivalence cannot solve the current problems of atomic gyroscopes, such as the narrow response bandwidth of SERF gyroscope and the drift due to the different Fermi-contact interaction coefficient in NMR gyroscope, it provides a simple understanding of atomic gyroscopes and may inspire new schemes combining advantages of both NMR and SERF gyroscopes.