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Products & Services

measurement, mesure, champ electrique, electric field, mesure du DAS, SAR measurement, milieux biologique, au sein de fantômes, exposition du publics, ondes électromagnétiques, DREP, biological media, public exposure to electromagnetic fields, inside phantoms, SAR assessment for hyperthermia, electromagnetic field

Specific-absorption-rate or SAR measurement

Since ultra compact and interference-free electric-field probes allow vector measurement inside biological media, KAPTEOS solution meets specific absorption rate measurement needs for public exposure to electromagnetic fields, especially inside phantoms.

KAPTEOS has conducted many studies and manufactured numerous systems on behalf of its clients: measure of hazards of electromagnetic fields for humans in the defense sector, specific absorption rate measurement (SAR) for hyperthermia equipment in the healthcare sector, SAR measurement in the telecommunication and research sectors.

Case studies

Frequency-domain pulse measurement

by L. DUVILLARET/G. GABORIT

(AN24-FDPM-09)

Measuring gated-CW pulses in the frequency domain is not straightforward especially when considering weak signals. Using a spectrum analyzer as demodulator, the envelope of the pulses can be carried out. However, the recommended setup requires a signal generator with a trigger output which is usually not a native feature. To overcome that issue, a low frequency generator is added. With a robust model of the spectrum analyzer behavior, accurate measurements of peak signal amplitude only 1 dB above noise floor is achievable.

Electric field probe calibration

by L. DUVILLARET

(AN21-EFPC-04)

Electric (E) field probes need to be calibrated in order to get absolute E-field strength values. Contrary to other sensors (temperature, pressure...), the sensitivity of E-field probes depend on the medium in which the probe is placed. An E-field probe calibrated in air gives a wrong result when used inside water or inside any other liquid...

Use of eoCal™ HF6

by L. DUVILLARET

(AN21-eoCal-01)

Electric (E) field probes need to be calibrated in order to get absolute E-field strength values. Their calibration in air is straightforward for frequencies up to 6 GHz thanks to adiabatic TEM cell...

They use KAPTEOS technology for their R&D

List of publications

"Computational and experimental characterization of EMF exposure at 3.5 GHz using electro-optical probes"

IEEE International Symposium on Measurements & Networking

Land Forces Academy, Sibiu (RO)

ANCOM, Prejmer (RO)

2022

"Applicateurs destinés aux études d’effets biologiques des ondes électromagnétiques sub-nanosecondes"

Mathieu CROIZER Ph.D. Thesis

XLIM, Limoges (FR)

2015

"Electrooptic Probe Adapted for Bioelectromagnetic Experimental Investigations"

IEEE Transactions on Instrumentation and Measurement

XLIM, Limoges (FR)
IMEP-LAHC, Le Bourget-du-Lac (FR)
Boston University, Boston (US)

2012

"Simultaneous High Intensity Ultrashort Pulsed Electric Field and Temperature Measurements Using a Unique Electro-Optic Probe"

IEEE Microwave and Wireless Components Letters

XLIM, Limoges (FR)
IMEP-LAHC, Le Bourget-du-Lac (FR)
Boston University, Boston (US)

2012

"Specific Absorption Rate Assessment Using Simultaneous Electric Field and Temperature Measurements"

Antennas and Wireless Propagation Letters

XLIM, Limoges (FR)
IMEP-LAHC, Le Bourget-du-Lac (FR)
Boston University, Boston (US)

2012

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