EFS-Series

The Frankonia EFS-LASER Electric Field Probe especially has been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3. However, it is also excellent to measure the radiation pollution of the environment, for example at workplaces or flats.

The EFS-LASER is an isotropic miniature E-field sensor to ensure, that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field-strength), because of its direct fibre-optic output, which does allow direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC 61000-4-3 control software or via a windows-software included in the delivery.

The EFS-Laser cover the frequency-range from 10 KHz – 6 GHz. The utilized linearization technology provides a dynamic range up to 100 dB. The EFS-Laser is a smart, fast, extremely accurate electric field probe, which provides linearization, temperature compensation, control and communication functions. Noise reduction and temperature compensation allow accurate measurments down to 0.1 V/m. The probe is laser-powered to allow continuous, galvanically isolated operation without recharging or battery replacement The power supply unit comes in a small handy box.

Features

Laser powered – no more empty batteries

Extreme small size

High resolution, high speed, low noise

Frequency range: 10 kHz to 6 GHz

Field strength measurements from 0.1 V/m up to 10 kV/m

Wide dynamic range

Continuous real-time data streaming

Temperature compensation

Computer-Interface
PC Interface USB 2.0
Application Software included
Burst Trigger Output Level 3.3 V CMOS
Burst Trigger Output Connector BNC
Laser – Wavelength 850 nm
Laser – Output Power 750 mW
Laser – Shutdown Time 1 ms
Fiber Optic Connector FC / ST
Fiber Optic Cable Length 15 m
Max. Fiber Optic Cable Length 100 m (sold on request)
Input Voltage (power supply included) 5V ± 5%
Input Current < 2A
Ambient Temperature 10 °C … 40 °C
Dimensions (W x D x H) 483 x 43.5 (1HE) x 120mm
Field Sensor
Frequency range 10 kHz … 6GHz
Analog Rise Time
10 kHz … 100 MHz low Bandwidth
10 kHz … 100 MHz high Bandwidth
100 MHz … 6 GHz
4 μs
40 ns
25 ns
Minimum Pulse Width
Burst Mode
Streaming Mode
500 ns
2 μs
Resolution < 0.01 dB
Sampling Rate
Burst Mode
Streaming Mode
2 MSample/s
> 500 kSample/s
Field Strength
10 kHz … 100 MHz
100 MHz … 6 GHz
< 1 V/m … > 10 kV/m
< 0.1 V/m … > 700 V/m
Damage Level
10 kHz … 100 MHz
100 MHz … 6 GHz
40 kV/m
10 kV/m
Dynamic Range
10 kHz … 100 MHz
100 MHz … 6 GHz
Isotropy, 900 MHZ
80 dB … 100 dB
70 dB … 80 dB
< 1dB
Amplitude Accuracy
10 kHz … 10 MHz (1.5 V/m to 30 V/m)
> 10 MHz … 1 GHz (1 V/m to 80 V/m)
> 1 GHz … 8 GHz (3 V/m to 100 V/m)
1.3 dB
1.5 dB
1.0 dB
Linearity Error < 0.1 dB
Temperature Stability 0.1 dB
Ambient Temperature 10 °C … 40°C
Dimensions (W x D x H) 67 x 67 x 124 mm

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