Advanced Magnetometer System

reportActive / Technical Report | Accesssion Number: AD1173680 | Open PDF

Abstract:

Scalar magnetometers and Time-Domain Electromagnetic (TDEM) systems are proven and effective technologies used extensively in the field to detect, discriminate and classify unexploded ordnance (UXO). These two methods complement each other with magnetometers being excellent at detecting large and deep ferrous targets but having limited discrimination capability while the opposite is true for TDEM systems. A combined magnetometer-electromagnetic system is ideal for UXO remediation. However, without complicated interleaving method, it is not possible to simultaneously run both sensors in the close vicinity to each other due to the interruption of the magnetometer operation by the electromagnetic (EM) pulses. Our objective is to enable integration of miniature laser-pumped cesium magnetometers with TDEM systems by improving the magnetometer sensor to function in presence of an EM transmitter.

Author(s):
Zhang, Rui ; Mhaskar, Rahul
Author Organization(s):
GEOMETRICS INC SAN JOSE CA
Funding Organization(s):
STRATEGIC ENVIRONMENTAL RESEARCH AND DEV, ALEXANDRIA , VA
Document Type:
Technical Report/Final Report
Publication Date:
2020 Nov 12
Pagination:
83

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution Code:
A - Approved For Public Release
Distribution Statement: Public Release

RECORD

Collection: TRECMS
Identifying Numbers
Report Number(s):
MR-2646
Contract Number(s):
16-C-0010
Project Number(s):
MR-2646
Subject Terms
Communities of Interest:
Sensors
Descriptor(s):
detection, uxo detection, detectors, magnetic detection, magnetic fields, magnetometers, digital signal processing, measurement, repetition rate, acousto-optic modulators, distributed bragg reflectors, magnetic properties, unexploded ammunition, waveplates, field programmable gate arrays, global positioning systems, magnetic materials
Keyword(s):
Scalar Atomic Magnetometer, Time-Domain Electromagnetic System, Polar Angle, Angle Measurement, Digital Signal Processing, UXO Discrimination, Low Frequency Magnetic Field Excitation
Subject Categories:
Navigation, Detection and Countermeasures; Ordnance
Creation Date:
2022 Jul 08
Update Date:
2022 Aug 17