Sciospec's EIT Electrical Impedance Tomography

the perfect match

Sciospec Solutions for Electrical Impedance Tomography

Electrical Impedance Tomography (EIT) is an imaging technique that visualizes conductivity or impedance distributions both in 2D and in 3D. Sciospec is partnering with world leading scientists in the field to deliver solutions that enable using EIT both in research and in practical applications.

Apart from our standard instruments for easy entry into the world of EIT we also offer fully customized EIT products as well as application-specific OEM solutions. Build on Sciospec´s flexible technology plattform, scalabilty is at the heart of all our instruments: Channel counts of up to 256 are available in standard configurations and we even have reference system designs with a lot more than that.

Over the years we have realized applications ranging from the classical medical (lung ventilation monitoring and electrode positioning problems) over industrial applications (pipe system monitoring and contamination tracking) to state of the art chip based EIT for biosensing applications.

Let's begin with Sciospec's EIT lab instruments

In some applications a dedicated EIT system is just not the best case. Sometimes it might be interesting to have an EIS system that comes with EIT functionality.

Sciospec's EIT systems (EIT16/32/64/128+) are specifically designed for measurements for electrical impedance tomography. True parallel measurements and tightly synchronized switching allows for fast frame rates. No matter what channel count you decide to go with, you'll benefit from:

dual role electrode connections serving both as voltage measurement and current injection ports
tightly synchronized data acquisition block for truly simultaneous sampling of all channels
injection switch matrix for selection of any combination of 2 channels for positive and negative injection ports
switch matrix either based on ultra-low leakage reed relays or high speed semicondutor switches
Sciospec SineFit algorithm for fast and precise signal extraction
broad frequency range (e.g. 100 Hz ... 1 MHz)
spectral measurements with frequency sweeps with up to 128 frequencies
current excitation from 100 nA ... 10 mA peak amplitude
frame rates up to 100 fps
software with ready to go imaging algorithms
fully customizable - just ask us

For easy entry a software provides EIT image reconstruction functionalities for time- and frequency-difference imaging. Alternatively you can just use the MATLAB code and import your data to EIDORS or write your own image reconstruction and import that to our software.

EIDORS

EIDORS (Electrical Impedance Tomography and Diffuse Optical Tomography Reconstruction Software) is a free software for EIT image reconstruction and processing. The EIT data generated using a Sciospec EIT system, like the EIT16, and corresponding Sciospec software can be imported, processed and visualized in the Matlab based free software EIDORS. Sciospec provides appropriate Matlab code examples and guidance to help you getting started with this constellation. Check out the AppNote introducing the EIDORS use with the Sciospec EIT16.

Scale Up

Why stick with 16 channels when 256 are possible? As all Sciospec instruments the EIT system is scalable. While 16 channels are the quasi-standard in imaging and algorithm research, we still believe more is better. Pick an instrument with 32, 64, 128 or even more channels to gerenate more EIT data, or to enter new application fields. For example we are combining EPR, EIS and EIT in a massive-mutlichannel system in the research project PhenoCor.

Application Specific & OEM

With our modular EIT platform we are prepared for implementing customer-specific requirements. Often we can largely stick with the well-established Sciospec EIT platform and only add/modify functional components or groups. The Sciospec EIT plattform is well-established in numerous research groups around the globe. In OEM applications our customers appreciate both our technological excellence and our flexible cooperation models.

add powerful options as you need them

frontpanel connectors: BNC, SMA, MCX, DSUB, MDR, custom
IOport digital interface connector for external sensors and other hardware
wireless interfaces
medical grade modifications
- power supply
- enclosure modification
- isolated USB-Port
- AC coupling frontend
- isolated IOport
temperature controller module
customized current and voltage ranges
Battery operation
and many more

Choose from countless EIT accessories

Phantom Tanks

We offer different phantom tanks

standard EIT16 phantom tank: 1 ring with 16 electrodes
standard EIT32 phantom tank: 1 ring with 32 electrodes
EIT phantom tank 16x2: 2 rings with 16 electrodes each
EIT phantom tank 32x2: 2 rings with 32 electrodes each

But also can we built customer-specific designs

individual electrode count
individual electrode arrangements (e.g. multiple levels or grids)
individual tank layout, diameter & height

Phantoms tanks can be selected as an accessory for our EIT devices

Cable Sets

connector types
- banana plug
- crododil clip
- custom
cable lenghts
- 0,5 m
- 1 m
- 1,5 m
- custom lenghts

Cable sets can be selected as an accessory for our EIT devices

EIT SlideChip Adapter

extension module for the Sciospec EIT16 system
multiplexer to connect sensors in slide-in format
48 channels: 3 banks with 16 channels each (only three measurement runs for all 48 channels)
sensor carriers available at Sciospec

The EIT SlideChip adapter and the SlideChip carriers can be selected as an accessory for our EIT16 device

With multichannel scalability as one of our core competences - EIT is a perfect match for our technology platform. Not only do we provide our expertise in instrumentation design, but we also have expert data scientists with long time experience in imaging algorithms for EIT embedded in our development team.

Relevant publications

browse through some scientific publications and discover where Sciospec technology helps scientists and engineers advancing research and pushing boundaries.