Nuclear Magnetic Resonance Gyro: Ultimate Parameters

Estimation of the Nuclear Magnetic Gyroscope Sensitivity to Inertial Influences

“…Thus, information on the Xe nuclei precession can be obtained from the information on Cs magnetization; the latter is detected by a change in the polarization of the detection beam. An additional advantage of this method is the aforementioned effect of strengthening the effective magnetic field created by nuclear spins [2].…”

Development of Alkali Vapor Cell for Miniature Nuclear Magnetic Gyroscope

“…Angle random walk (ARW) is a noise contribution to the rotation angle value obtainable by integrating the angular velocity. W ARW is the angle random walk coefficient, usually expressed in º/√s or º/√h, which shows standard deviation of noise observed in rotation angle estimation [10][11][12]. It can be written as:…”

Experimental Study of Nuclear Gyro Bias Compensation Using the Quality Factor Estimation

“…Currently, navigation systems for highly dynamic objects are in demand and, accordingly, interest in the development of small-sized and vibration-resistant rotation sensors and angular velocity sensor has increased. One of the promising directions in the development of a navigation system for highly dynamic objects is a nuclear gyro sensor [1,2,3,4], which is associated with a fundamental insensitivity to vibrations, as well as small weight and size characteristics.…”

“…Then, parts of the circuit, the schematic representation of which is shown in Figure 1. The following elements are taken [3,5]: a cell containing xenon isotopes 129 and 131 whose precession frequency and measures a nuclear gyroscope, cesium vapors transferring magnetization to xenon isotopes through spin exchange , a pump laser for optical pumping of cesium vapor; a detection laser for measuring the change in polarization of light as it passes through the cell; a photodetector that converts changes in the polarization of light into an electrical signal; a synchronous detector that separates the total signal of the precession of xenon isotopes; a pair of bandpass filters separating the xenon precession signal 131 and 129 from the total xenon isotope precession signal; magnetic coils that create alternating magnetic fields to maintain the precession of xenon isotopes and automatic gain control (AGC) to maintain the signal level at a given level.…”