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PROBES
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H1TDS - TDS H-PROBES

TDS H-Field Probes: H1TDSx/MRI, H1TDSz/MRI

TDS magnetic field probes are miniaturized active optical magnetic field probes for use in non-magnetic media (μr = 1). For standalone applications (far- and near-field), each TDS time-domain field probe is delivered with an 8 m rugged fiber-optic cable attached directly to the probe. All SPEAG TDS probes have been optimized for field measurements in the frequency range from 10 MHz to 6 GHz and are individually calibrated and characterized in SPEAG’s ISO17025-certified calibration laboratory.
Types of Probes

H1TDSx/MRI*
Single-axis probe, sensitive to H-fields radial to the probe axis

H1TDSz/MRI*
Single-axis probe, sensitive to H-fields parallel to the probe axis

Frequency Range 10 MHz – 6 GHz
Dynamic Range

120 dB (1 Hz resolution bandwidth)
1 μA/m – 1 A/m (2 GHz)

E/H Supression >20 dB plane-wave equivalent (2 GHz)
Sensor Head Loop Size 2 × 2 mm2
Probe Tip Size 4 × 4 mm2
Optical Probe ID Integrated in the rear H-field probe body
Fiber-Optic Interconnect

8 m fiber-optic patch cord fitted to the probe
MU8-connector integrated in the shutter key

Fiber-Connector Mating Cycles 500 – 1000 (fiber patch cord can be serviced by SPEAG, increasing total mating cycles to >25,000)
Data Acquisition Systems

SPEAG 1RU1TDS Standalone
SPEAG 3RU1TDS Standalone

SPEAG 1RU1TDS PXI
SPEAG 3RU1TDS PXI

SPEAG OH4VNA RU

LASER Safety Classification IEC60825-1 2007 Class 1
US FDA CDRH registration
  *All SPEAG TDS magnetic probes are available in a special configuration with greatly reduced magnetic material content in the sensor head for MRI applications where minimal impairment during parallel imaging is desired.