Accession Number : AD0163965
Title : Crystal Magnetometer and Gradiometer.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Scarzello,John F.
Report Date : 06 FEB 1973
Pagination or Media Count : 7
Abstract : The patent describes a sensor for measuring component magnetic fields using a first magnetic field to be measured, and a perpendicular second magnetic field. The fields are modulated by first and second coils individually wound around first and second nonmagnetic cores. The nonmagnetic cores are hollow and intersect. A paramagnetic crystal is located at the intersection of the cores and is oriented to provide a maximum nuclear magnetic resonance signal. In one embodiment, a magnetometer is employed which includes a sweep generator, marginal oscillator, feedback loop and the sensor for determining the magnitude of the component magnetic field to be measured. An alternative embodiment uses a sweep generator, marginal oscillator, differentiating network and the sensor for determining the point gradient of the field to be measured.
Descriptors : (*MAGNETOMETERS, *PATENTS), MAGNETIC FIELDS, PARAMAGNETIC MATERIALS, PARAMAGNETIC RESONANCE
Subject Categories : Test Facilities, Equipment and Methods
Magnetic & Electric Fld Detection & Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE