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High-Sensitivity Atomic Magnetometer

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High-sensitivity atomic magnetometers are detectors of the low magnetic field by measuring Larmor progression of optically pumped alkali-metal atomic vapor. The advantage of them in comparison with superconducting quantum interference devices (SQUID) is its high sensitivity at room temperature. Collectively, Alkali-metal atomic magnetometers have the features of high-sensitivity, low cost and miniaturizability.

High-sensitivity atomic magnetometer not only for biomagnetic detection but also for geomagnetic matching navigation, military magnetic alien anti-submarine, mineral resources exploration, and spatial magnetic field detection (Photo shows an OPM magnetometer developed by Fieldline, USA).

QuSpin Zero-Field Magnetometer

Field Sensitivity: <15 fT/√Hz in 3-100 Hz band (typical 7-10 fT/√Hz)
Dynamic Range: ±5 nT
Measurement Axes: Z-axis only / Y-axis only / Dual Z & Y axes (simultaneous)
Standoff: 6.5 mm (center of the vapor cell to outside of housing)
Calibration: Internal reference (automated)
Signal Outputs: Analog, USB Digital

Twinleaf OMG Optical Magnetic Gradiometer

Gradiometer Baseline: 2.3 cm (other baselines available)
Sensor Standoff From Front Surface: 5.6 mm
Optically Pumped Alkali Metal (Rubidium)
Sensitivity: <0.2 pT/Hz1/2
Sample Rate: 1 kHz
Dynamic Range: ±5 nT
Field Range: 1–100 µT
Slew Rate: >1000 nT/ms

High-Performance Magnetic Shielding Products

Self-Developed

The self-developed magnetic shield is made up of multilayer high magnetic permeability alloy material. It consists of active shielding coils which can effectively shield from the earth’s and the environment’s interfering magnetic fields, providing a stable zero-field environment.
Shielding Factor: 10⁶
Magnetic Noise: 16 fT/Hz1/2
Residual Direct Current Magnetic Field in the Axial Y < 5 nT
We offer custom sizes ranging from small animals to human adults, as well as demagnetization and magnetic field simulation services.