Multichannel Magnetic Field Measurement System

Multichannel magnetic field measurement systems record simultaneous magnetic field data from multiple sensors at different spatial positions — mapping field distribution across complex geometries, detecting localized anomalies that single-sensor instruments miss, and providing the spatial resolution needed for magnetic signature characterization, EMC testing, geophysical survey, and biomedical imaging applications.

Fluxgate sensor arrays form the most widely deployed multichannel magnetic measurement architecture for laboratory and industrial applications. Three-axis fluxgate sensors at each measurement position deliver X, Y, and Z field components simultaneously at noise floors reaching 6 pT/√Hz on precision sensors such as the Bartington Mag-03 series. Multichannel data acquisition units synchronize all sensor channels to a common clock — providing time-aligned field data across the full array at sampling rates from 1Hz for static mapping to 10kHz for dynamic field event capture. Furthermore, 3D field mapping systems mount sensor arrays on motorized scanning frames — stepping through defined spatial grid positions automatically and recording field values at each point to build full volumetric field maps without manual repositioning between measurements.

Overhauser and cesium vapor multichannel systems deploy sensor arrays across survey areas for simultaneous total field measurement at multiple positions — used in high-throughput UXO clearance operations where parallel sensor coverage increases area survey rates proportionally to the number of deployed sensors. The Geometrics G-864 accepts four cesium magnetometer sensors simultaneously at 10Hz sample rates — covering four survey lines in a single pass. Additionally, biomagnetic measurement systems including multi-channel SQUID arrays place dozens of superconducting quantum interference device sensors around a subject — mapping neural and cardiac magnetic fields at femtoTesla sensitivity levels for magnetoencephalography (MEG) and magnetocardiography (MCG) clinical and research applications.

System calibration uses Helmholtz coil assemblies generating precisely known three-axis fields — verifying sensor sensitivity, cross-axis coupling, and channel-to-channel offset differences before field deployment or measurement campaigns. Data output formats include ASCII, binary, and HDF5 files compatible with MATLAB, Python, and specialist magnetic data processing platforms.

These systems serve Pakistan Army EOD multichannel UXO clearance survey programs in KPK and FATA, NESCOM defense electronics magnetic signature measurement programs, Survey of Pakistan multichannel aeromagnetic survey instrument development, university physics and biomedical research departments in Lahore and Karachi, and Pakistan Navy vessel magnetic signature characterization and degaussing verification programs.

Tactical Supply Pakistan supplies multichannel magnetic field measurement systems for UXO survey, EMC testing, magnetic signature characterization, and biomedical research procurement across Pakistan.