Accession Number : AD0275819

Title :   NUCLEAR MAGNETIC RESONANCE RATE GYRO PERFORMANCE

Corporate Author : MOTOROLA INC RIVERSIDE CALIF

Personal Author(s) : DODD,E.E.

Report Date : APR 1962

Pagination or Media Count : 1

Abstract : The effect of inertial rotation in nuclear mag netic resonance is described, and several schemes for rate gyro operation are given. A generalized expression is obtained for the directional drift of a rate or an integrating rate nuclear magnetic resonance (nmr) gyro due to resonance sensing error. An unavoidable source of such error is the inherent magnetic noise in a nuclear spin system, and the resulting gyro directional drift for a steady state Bloch spin system is expressed in terms of adjustable parameters (temperature, field strengths, relaxation times, etc.). For conventional laboratory parameter values, the rms one-hour drift due to spin system magnetic noise is about one degree. A cursory discussion of a rapid adiabatic passage gyro is included. (Author)

Descriptors :   *GYROSCOPES, *NUCLEAR MAGNETIC RESONANCE, DIPOLE MOMENTS, DRIFT, MAGNETIC FIELDS, MAGNETIC MOMENTS, NUCLEAR MAGNETIC MOMENTS, NUCLEAR SPINS, PARAMAGNETIC RESONANCE

Distribution Statement : APPROVED FOR PUBLIC RELEASE