Tests radiofrequency electromagnetic field exposures from mobile communication devices operating in the 27 MHz region (additional frequencies upon request). The setup is based on two Crawford TEM cells that are blindly excited by a fully computer-controlled signal unit.
|Exposure setup (placed inside incubator)||30 × 40 × 60 cm (d × w × h)|
|Signal tower (beside incubator)||60 × 60 × 70 cm (d × w × h)|
|Cell type||cell monolayer|
|Cell preparation||6 Petri dishes (FALCON ø = 35 mm)|
|Loading volume of cell medium||60 cm³, 18.5 ml|
|Carrier frequency||27 MHz, others on request|
|Modulation schemes||sinusoidal amplitude modulation (1Hz – 200KHz)
|Intermittent exposure||arbitrary on/off cycles with 10 s temporal resolution|
|Peak SAR (200 W amplifier)||monolayer: 1.5 W/kg|
|Nonuniformity of the SAR distribution||monolayer: 20%|
|Temperature rise of exposed cells||monolayer: 0.16°C/(W/kg)|
|· full software control of the exposure with self-detection of malfunctions
· blinded exposure protocols
· transmitted power monitoring and feedback regulation by power sensors
· air temperature monitoring by Pt100 probes
· monitoring of fan driving currents
· data logging every 10 s
The complete bundle includes the TEM cells, signal tower, PC with controlling software, and a suitable CO2 incubator. Also included is installation of the setup at the target laboratory as well as personnel training sessions. Pricing and detailed specifications available on request.
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