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    KAPTEOS SAR - SPECIFIC ABSORPTION RATE ASSESSMENT

    SPECIFIC ABSORPTION RATE (SAR) ASSESSMENT


    The Specific Absorption Rate (SAR) assessment measures the exposition of electric fields on people. These measurements are based on standards and must be performed inside a phantom (this is a new European directive). The Kapteos eoProbe can be used in any liquids and complies with this new directive.


    Example of specific projects:

     Measuring infantrymen exposure to electric fields from military communication antennas

     Application Note: Specific Absorption Rate Assessment

     

    Application Note: Specific Absorption Rate Assessment

    The exposition of people to electromagnetic fields is an historical concern. Electromagnetic fields are generated by a wide variety of systems and the emitted electrical fields have a broad frequency range (from kHz to GHz). The object of a Specific Absorption Rate Assessment is to perform measurements in accordance with standards requiring in-situ electric field in a biological medium.

     

    KAPTEOS_SAS_E-fields in bilogical environment Specific Absorption Rate SAR assessment with phantom

     

    An example would be the SAR of a mobile phone, with the measurements expressed in W/kg (lower is better).

     

    Existing technical E-field measurement solutions

    There are 2 different technologies available on the market today:

     To measure the elevation of temperature inside the phantom in various places

     To measure the electric field based on antenna probes inside the phantom in various places

     

    Proposed solution by Kapteos

    The Kapteos eoProbe and eoSense electro-optic solution offers the best possible measurement system due to:

     A non-perturbative measurement (no metal parts in the eoProbe)
     A very compact design (5 mm * 35 mm)
     A very small spatial resolution (< 1 mm)
     An ultra-wide band frequency
     An operating temperature from 0 to +50°C for the probe
     The vector measurement of the E- field with excellent rejection ratio of an axis of the field to another (> 50 dB). The measured information is very comprehensive and accurate.

     

    Targeted markets

    Any manufacturer producing systems that emit electrical fields due to the transport ion of data or energy:

     Research

     Medical

     Mobile phones

     Antennas

     Communication protocols (Wifi, Bluetooth, RFID…)

     Wireless energy charging systems

     Induction furnaces

     Transport of energy

     

    Customer advantages of using Kapteos solution

     One system that perfectly meets the standards for frequencies from 100kHz to 40GHz

     It allows the measurement of a field vector (amplitude, phase, spectrum, vector direction)

     

    Kapteos references

     Several publications with the XLIM research institute (France)

     Tübingen Clinic (Germany).

     Infantrymen exposure to electric fields from military communication antennas (France).