NEHRP Clearinghouse

Title
Phase-Shift Effect Magnetometer.
File
PB95126652.pdf
Author(s)
Dinsmore, R. C.
Source
National Science Foundation, Arlington, VA. Small Business Innovation Research Programs., July 25, 1991, 34 p.
Abstract
The primary objective of the research project was to determine the feasibility of using phase shift phenomenon as the transducing principal of a magnetometer. The findings show that, not only is a phase shift effect magnetometer possible, but high sensitivity, low cost, low power consumption, small size, and light weight are also readily achievable. State of the art OEM off-the-shelf components were used to breadboard a prototype to ascertain the feasibility. A sensitivity of about 0.01 nano Teslas was achieved. Specific research was identified to quantify the phase shift phenomenon for optimization. In addition to the applicability of magnetometry to biological, physiological, geological, and oceanographic research, other areas of applicability were identified, including MRI, detection and prediction of earthquakes and volcanic eruptions, and health effects due to induced magnetic fields from transmission lines and broadcast stations.
Keywords
Breadboard models; Magnetic measurement; Prototypes; Magnetometers; Phase shift effect magnetometers; Feasibility; Uses