Self-Calibrating Vector Magnetometer

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NAS3-02182
Agency Tracking Number: 013138
Amount: $69,919.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1810 Glenville Dr. #116, Richardson, TX, 75081
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Slocum
 Principal Investigator
 (972) 690-0099
Business Contact
 Robert Slocum
Title: Business Official
Phone: (972) 690-0099
Research Institution
This SBIR Phase II proposal describes the design, fabrication and evaluation of a Self-Calibrating Vector Magnetometer (SVM) breadboard model. The SVM is an innovative high-accuracy instrument capable of making both scalar and vector component measurements of Earth and planetary magnetic fields. The SVM scalar mode employs Optically-Driven Spin Precession (OSP) magnetic resonance. An OSP single-cell locked digital oscillator magnetometer was demonstrated for the first time under the Phase I Project achieving 3 pT/root-Hz sensitivity. Laser pumping with optical fiber coupling permits miniaturization of the SVM sensor by reducing helium cell volume by a factor of 8 and placing the laser and IR detector in the Electronic Unit. High-accuracy SVM scalar measurements are used to calibrate the SVM vector measurements thereby eliminating both fluxgate vector magnetometers and the scalar magnetometers required to correct for fluxgate drifts and offsets. The feasibility of fabricating a breadboard model SVM in Phase II has been established under the Phase I Project. By providing scalar measurements with an accuracy better than 1.0 nT, scalar sensitivity of 3 pT/root-Hz, vector component sensitivity of 5 pT/root-Hz, and calibrated accuracy of 1 nT, the SVM offers a significant advance in space magnetometer state of the art.

* Information listed above is at the time of submission. *

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