TDS RFoF1P4MED System

The RFoF1P4MED is a miniature active electro-optical wide-band sensor system for induced voltage measurements. It was jointly developed with our Z43 partner organization ZMT Zurich MedTech AG (ZMT) and allows medical implant immunity testing for compatibility with magnetic resonance imaging (MRI) environments in a precise and easy manner.

RFoF1P4MED is compatible with MRI systems up to 7T. With the ability to acquire the complex-valued voltage signals in the frequency range from 10 MHz – 1 GHz, RFoF1P4MED fulfills all probe requirements stated in ISO/IEC TS10974 Clause 15 for Tier 3 evaluations.

System	TDS RFoF1P4MED is composed of one RFoF1PMED voltage probe, an RFoF4MEDFOI fiber-optic interconnect, and a TDS Remote Unit. An RFoF4MEDCU calibration unit is used for on-site calibration and verification.
Applications	The TDS RFoF1P4MED system is optimized RF voltage measurements in EM-hostile and EM-sensitive environments: ISO/IEC TS10974 Clause 15 for Tier 3 evaluations Fully differential voltage measurements in EM-hostile environments
Basic Configuration	The basic configuration of a TDS RFoF1P4MED system is composed of: a TDS Standalone Remote Unit a TDS RFoF1P4MED voltage probe a TDS RFoF1P4MED FOI (fiber-optical interconnect) a TDS RFoF1P4MED CU (calibration unit) 3.5 mm RF coaxial cable (length 0.6 m) ClickCleaner (optical connector cleaner) USB cable USB power supply TDS Professional Handbook
TDS Remote Unit	TDS Remote Unit specifications: input: TDS MU8 optical interconnect output: 3.5mm RF connector frequency range: 100kHz (10Hz) to 6 GHz P1dB: > 0 dBm return loss: > 10 dB power and control: USB
TDS RFoF1P4MED	Specifications of the TDS RFoF1P4MED transducer: frequency range: 10 MHz (10 Hz) to 1 GHz dynamic range: 50 μV - 7 V (peak) sensor size: 2 × 2 × 4 mm² impedance: 300 kΩ
Software	TDS RFoF1P4MED comes with a remote control capability via SCPI commands over the USB link for measurement and test automation.
Calibration	Calibration is performed in SPEAG's ISO17025-certified calibration laboratory.
Verification	S21 measurement with RFoF1P4MED CU
Standard Compatibility	TDS RFoF1P4MED can be used for tests in compliance with: ISO/IEC TS10974 Clause 15 for Tier 3
Unique Features
Frequency range Active optical technology Time-Domain Miniature	10 MHz (10 Hz) - 1 GHz non-disturbed signal transmission with unparalleled dynamic range flat wideband RF signal transmission sensor size 2 × 2 × 4 mm²
Benefits
Wide-band sensors Miniature transducer Fully isolated using optical technology Fully differential MRI compatible	ability to cover a wide frequency range with one voltage probe no loading of the device under test no parasitic pickup, full signal integrity, 100% trusted results optical isolation provides unparalleled differential measurement performance no magnetic material in the probe allows easy use in clinical systems
Compatibility	DASY8 Module AIMD, ZMT MITS, ZMT piX
Product History	see Product Lifetime