Method for determining a change in a rotational orientation in the space of an NMR gyroscope, and NMR gyroscope

US12061085B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Tino Fuchs · Rötteln, DE
• Janine Riedrich-Moeller · Warmbronn, DE
• Andreas Brenneis · Renningen, DE
• Robert Roelver · Calw, DE
• Michael Curcic · Stuttgart, DE
• Peter Degenfeld-Schonburg · Renningen, DE

Key dates

• Filing date: Oct 21, 2020
• Grant date: Aug 13, 2024
• Expiry date: Apr 1, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/26
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for determining a rotational orientation change using an NMR gyroscope includes making use of a measure of determining, in a vapor cell, which is filled at least with a gaseous first element and a gaseous second element having non-vanishing nuclear spin, a nuclear spin component of the second element in the second direction and a nuclear spin component of the second element in a third direction. The second direction and the third direction are perpendicular to a first direction, which corresponds to the direction of the static magnetic field and to the polarization direction of the nuclear spin of the second element. Moreover, the second direction corresponds to the direction of an applied alternating magnetic field, the frequency of which corresponds to the Larmor frequency of the Larmor precession of the nuclear spin of the second element about the static magnetic field.