Vector E-Field Probes

Kapteos Triaxial Vector E-Field Probes (10Hz to 100GHz)

Comprehensive non-invasive electric field measurement system.

No metal content E-Field probe system.

The picture below presents the up to date available products and accessories.
The minimum required system to perform an electric field measurement is to have the eoProbe sensor connected to the optoelectronic converter called eoSense.

The System Components are as follows:

eoSense: opto-electronic converter (from 1 to 3 channels)

eoProbe: optic probe (1 probe measures 1 axis of an electric field)

eoSwitch: optical switch to select a probe among several ones

eolink: optical extension lead

eoCal: electric field applicator to calibrate a probe

eoPod: holder to maintain up to 3 probes

triaxial: optic probe (1 probe measures 3 axis of an electric field)

eoVac: removable feedthroughs for low and high pressure

Kapteos new triaxial vector electric field probe

How to measure the three components of the E-field vector within a small enclosure?

For that purpose, Kapteos introduces a breakthrough with a triaxial vector electric field probe. Such probe allows to measure sequentially the three E-field components while staying in same position and direction. To switch from Ex to Ey component, and then from Ey to Ez component, the probe simply needs to be rotated 120°

View Animation

Main Features

Vector E-field: 3 axis + phases
Frequency bandwidth: 10Hz to 40GHz with sub-nanosecond temporal resolution
Now available up to 100GHz
Dynamic range: 50 mV/m to several MV/m
Max E-field: > 10MV/m without damage
Spatial resolution: < 1 mm
Multi media: air, liquids, gas, vacuum
Compactness: 5 * 35 mm sensing probe
Non-invasive: NO METAL => no impact on E-field
Selectivity: > 50 dB
Sensitivity: 50 mV/m/√Hz (94 dBµV/m)
Near field: down to 0 mm distance
Max B-field: withstand more than 4.7T
Operation temperature: 0 to 50°C (probe)
AF correction: automatic and real-time
Remote distance: up to 100 meters
Easy installation: set-up ready in < 5 min
Measure plasma plume and plasma jet

eoSense converter to operate the full system

This opto-electronic converter must be used with the eoProbe sensors, a dedicated Kapteos software or using dedicated instructions sent from your own software via the Ethernet port. It operates up to 3 eoProbe directly connected. It converts in real-time (100% analog conversion) the optical signal transmitted by the eoProbe into an electrical signal that can be analysed with an instrument like an oscilloscope, a spectrum analyser or any other signal processing instrument.
It includes an antenna factor (AF) real-time treatment for measuring absolute electric fields (modulus, phase).
Each eoSense is delivered with a Routine Test Report valid for 2 years.

5 opto-electronic converter versions to match your needs

Reference	Bandwidth	Internal Amplification
LF-30S	40 Hz to 30 MHz	30 dB (in standard)
MF-01U	1 kHz to 1 GHz	1 kHz to 1GHz 50 dB gain
HF-10	100 MHz to 10 GHz	100 MHz to 10GHz 55 dB gain
HF-20	100 MHz to 20 GHz	100 MHz to 20GHz 45 dB gain
HF-40	20 kHz to 40 GHz	100 MHz to 40GHz 48 dB gain

4th Gen. of Optoelectronic Converter eoSense

The 4th generation of Kapteos converters are easier than ever to use.

They present also great advantages with respect to previous generation:

Automatic probe recognition
Automatic AF setting at frequency of interest
Probe sensitivity axis orientation 2 times more accurate
Ruggedized optical connector (MIL-38999)
No more external computer
Extension down to 10 Hz for LF model (5 times lower)
Up to 3 RF sub-bands for SHF model
1→10 GHz shielding effectiveness improved by 30 dB
Separate calibration of probes and converters

Direct control of AWG and ASA as a software option

eoProbe to measure the electric field

It measures one component of the electric field vector based on the electro-optic technology. This Ultra-Wide Band sensor allows accurate measurements in almost any location and environment (air, liquids, gases, vacuum) under harsh conditions.
Each eoProbe is delivered with a Routine Test Report valid for 2 years.
This probe must be used with the eoSense converter.
6 patents covers the eoProbe: EP2035845, EP2035846, US7769250, US8264684, CA2655034, CA2655447.

12 EMF probe versions to match your needs

Reference	Environment	Sensitivity - Bandwidth	Type
ET5-air	Low permittivity (Air / oils)	250 mV/m - 30 Hz-10 GHz	Trans
ET1-air	Low permittivity (Air / oils)	500 mV/m - 30 Hz-50 GHz	Trans
EL5-air	Low permittivity (Air / oils)	50 mV/m - 30 Hz-10 GHz	Long
EL1-air	Low permittivity (Air / oils)	200 mV/m - 30 Hz-50 GHz	Long
ET5-vac	Low permittivity (vacuum)	250 mV/m - 30 Hz-10 GHz	Trans
ET1-vac	Low permittivity (vacuum)	500 mV/m - 30 Hz-50 GHz	Trans
EL5-vac	Low permittivity (vacuum)	50 mV/m - 30 Hz-10 GHz	Long
EL1-vac	Low permittivity (vacuum)	200 mV/m - 30 Hz-50 GHz	Long
ET5-bio	High permittivity (water based liquids)	50 mV/m - 30 kHz-10 GHz	Trans
ET1-bio	High permittivity (water based liquids)	200 mV/m - 30 kHz-50 GHz	Trans
EL5-bio	High permittivity (water based liquids)	50 mV/m - 30 kHz-10 GHz	Long
EL1-bio	High permittivity (water based liquids)	200 mV/m - 30 kHz-50 GHz	Long

Main Specifications

Characteristics	Values
Sensitivity and bandwidth	See above eoProbe versions table
Dynamic of measurement	≥ 130 dB.√Hz
Selectivity	≥ 50 dB
Spatial resolution	≤ 1 mm
Operating temperature	0°-50° C (32° - 122 ° F)
Operating pressure	0 - 2030 hPa (0 - 29.4 PSI)
Max E-field without damage	10 MV/m
Max B-field without damage	4.7 Tesla
Ingress protection rating	IP 67 (sensor only)
Chemical compatibility of gases	Air, nitrogen, plasmas, SF6
Chemical compatibility of liquids	Water, oils, alcohols, biological liquids
Probe cleaning	Clean lightly moistened with isotropilic alcohol
Fibre optic diameter	2.8 mm (see data sheet for vacuum)
Optic fibre minimum bend radius	40 mm (see data sheet for vacuum)

Accessories for the eoSense opto-electronic converters

Fibre optic extension

The fibre optic extension is inserted between the eoSense converter and an eoProbe sensor to increase the distance up to a maximum of 100 meters. A rugged version for outdoor usage is available in standard.

eoPod ver 2 for eoProbe sensors

This accessory allows via its articulated arm to maintain the probe on a specific location. It is fully dielectric hence can be used near E-field sources. 2 versions are available: one for air and vacuum probes and one for bio probes.

eoPod Holder

Install eoProbe

eoVac for feedthroughs for low & high pressure

The removable feedthroughs eoVac allow to use any air-line or bio-line probe eoProbe under medium vacuum or up to a pressure of 2 atmospheres.

eoCal for electric field probe calibration

For a very accurate measurement inside liquid medium or air, eoCal is an easy and fast calibration accessory of your electric field probes.

Electromagnetic Measurement Applications

Application Note:Compariston of different E-field measurement systems

Application Note:Antennas Pattern Characterization

Application Note:Measuring the Magnetic Fields required to produce Plasma

Application Note:Measuring the Magnetic Fields produced by an MRI Machine

Application Note:Measuring Low RMS signal from a MRI Machine

Application Note:Measurement of E-fields in Electro Magnetic Compatibility

Application Note: E-field Measurement System Basic Technology

Application Note:Specific Absorption Rate Assessment

Application Note:High voltage (insulation, partial discharges)