USA flag logo/image

An Official Website of the United States Government

Self-Calibrating Vector Magnetometer

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Polatomic, Inc.
1810 N. Glenville Dr. Suite 116 Richardson, TX -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2002
Title: Self-Calibrating Vector Magnetometer
Agency: NASA
Contract: NAS3-02182
Award Amount: $599,929.00


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.

Principal Investigator:

Robert Slocum
Principal Investigator

Business Contact:

Robert Slocum
Business Official
Small Business Information at Submission:

Polatomic, Inc
1810 Glenville Dr. #116 Richardson, TX 75081

EIN/Tax ID: 751839721
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No