Electrical Resistance Tomography System

TJUERT multi-plane system: Electrical Resistance Tomography (ERT) system in three tiers — 16/32/64 electrodes, 1/2/4 planes, 15/30/60 fps imaging.

The TJUERT series — designed and developed by the Tianjin University Electrical Imaging research group — is a multi-plane 3D Electrical Resistance Tomography system for industrial fluid measurement and biomedical impedance imaging. Built on a Xilinx FPGA/ZYNQ heterogeneous platform, it comes in three tiers — Standard, Professional, and Flagship (16/32/64 electrodes, 1/2/4 planes, 15/30/60 fps imaging) — covering teaching, industrial process monitoring, and advanced research; 1000 Mbps wired / wireless Ethernet supports remote data transmission.

TJUERT resistance tomography (ERT) system data acquisition unit: 4 planes × 16 electrodes (64 channels) with on-board FPGA and gigabit Ethernet.
TJUERT resistance tomography (ERT) system acquisition host, front — 4-plane 64-channel electrode interface matrix (Plane I–IV × Electrode 1–16).

Front panel: 64-channel electrode connector matrix across four planes (Plane I–IV × Electrode 1–16).

TJUERT multi-plane 3D ERT system on a fluidized-bed test rig — vertical electrode array, acquisition mainframe, and imaging software.

Fluidized-bed test site: vertical electrode array, acquisition mainframe, and imaging software.

Demo

Overview

3D imaging · high-speed multi-channel acquisition

Built on a ZYNQ heterogeneous processor (FPGA + ARM) with 14-bit 10 Msps A/D and 14-bit 125 Msps D/A; the excitation signal switches between sinusoidal and square waves at standard frequencies of 2.5 / 10 / 40 / 160 kHz (depending on product tier; special frequencies available on request). No warm-up required — operational immediately after power-on. 1000 Mbps wired/wireless Ethernet for data transmission; raw data can be exported as .bin / .csv for post-processing and algorithm research in MATLAB or Python.

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  • Multi-plane 3D imaging

    Up to 4 planes on the Flagship tier acquired synchronously to reconstruct the 3D impedance distribution.

  • Industrial and medical applications

    Industrial gas-liquid / liquid-solid two-phase flow and slurries, plus biomedical impedance and pulmonary ventilation measurement.

  • High-speed acquisition

    Up to 60 fps imaging on the Flagship tier — captures transients in fast dynamic processes.

  • Highly open system

    Raw boundary-measurement data can be exported; excitation strategies can be selected or customized; the sensitivity matrix can be replaced and new algorithms can be added.

ERT product line overview — Standard / Professional / Flagship

Item Standard Professional Flagship
Price Welcome to contact us for a formal quotation; universities and research institutes may apply for additional discounts
Planes supported 1 plane 1/2 planes 1/2/4 planes
Electrodes supported 16 16/32 16/32/64
Excitation frequencies 2.5 kHz 10/40 kHz 2.5/10/40/160 kHz
Frame rate 15 fps 30 fps 60 fps
Excitation pattern Adjacent Adjacent / opposite Adjacent / opposite / custom
Sync trigger None Optional Standard
SNR range 45~65 dB (1)
Communication interface Gigabit Ethernet
Ingress protection IP54
Software licensing • Perpetual single-machine • Add-on modules • Perpetual single-machine • Add-on modules • Perpetual single-machine • All modules included
Image reconstruction algorithms • Single-step algorithms • Optional algorithm packages • Single-step algorithms • Iterative algorithms • Optional algorithm packages • Single-step algorithms • Iterative algorithms • Neural-network algorithms
Software openness • Data export • Data export • Excitation-pattern selection • Data export • Custom excitation patterns • Sensitivity-matrix replacement • New-algorithm plug-in
Bundled sensor • Standard sensor (2) (single plane) • Custom sensors optional • Standard sensor (2) (dual plane) • Custom sensors optional • Standard sensor (2) (four plane) • Custom sensor included
Warranty & service 1-year warranty with free calibration
Optional features • Embedded WEB server (3) replacing a traditional computer, with smart-terminal imaging and display • High-precision calibration module with self-service fast calibration • Special sensor design for high-temperature / high-pressure applications • Custom instrument development for special resistance / capacitance / impedance measurement hardware and software
Customer feedback program Application testimonial | Co-authored publications | Referral rewards | Repeat-purchase benefits | Research project collaboration

Notes: (1) SNR range: SNR measured with the standard sensor in a laboratory environment. (2) Standard sensor: a saline-tank sensor manufactured with 3D-printing technology. (3) Embedded WEB server: built on an embedded Linux system; over standard network protocols, smart terminals can access imaging and parameter display directly in a browser without installing an APP.

Gallery

TJUERT resistance tomography (ERT) system acquisition host, front — 4-plane 64-channel electrode interface matrix (Plane I–IV × Electrode 1–16).
Front panel: 64-channel electrode connector matrix across four planes (Plane I–IV × Electrode 1–16).
TJUERT multi-plane 3D ERT system on a fluidized-bed test rig — vertical electrode array, acquisition mainframe, and imaging software.
Fluidized-bed test site: vertical electrode array, acquisition mainframe, and imaging software.

Companion Software

Imaging / reconstruction software that pairs with this instrument

eTomography Pro multi-modal tomography software — real-time single-plane EIT reconstruction with the algorithm-selection panel.

eTomography Pro — Multi-modal Tomography Imaging Software

Unified ECT/ERT/EMT/EIT/WMS modalities with one-click algorithm comparison and 2D/2.5D/3D visualisation.

Application Cases

How this product performs in real industry scenarios

Oil & Gas

Flow-Regime Identification in Oil-Water Multiphase Flow

Identify flow regimes inside oil-gas-water pipelines and measure water cut and interface position online, providing a basis for long-distance pipeline processing and metering.

Read case
Chemical & Pharma

Visualising the Mixing Process Inside a Chemical Reactor

Assess mixing, residence-time distribution and mass-transfer efficiency inside chemical / biological reactors; observe catalyst distribution and the uniformity of multiphase reactions.

Read case
Metallurgy & Materials

Slurry Density & Concentration Tracking

Monitor solid-liquid concentration changes and density distribution inside a slurry pipeline in real time; avoid blockages and improve the stability of mineral processing and metallurgy.

Read case
Custom Instruments

Multiphase Flow & Heat/Mass-Transfer Research Platform

A research platform for multiphase flow, heat/mass transfer and process intensification, built for university and corporate R&D departments; supports parameter customisation and algorithm-level access.

Read case
Food & FMCG

Material-Distribution Monitoring in Food Mixing Tanks

Observe mixing uniformity and emulsification dynamics inside a stirred tank in real time; provide data for quality control in food / consumer-goods production.

Read case
Medical Imaging Custom Instruments

EIT Reconstruction-Algorithm Validation & Comparison

An experimental platform for university EIT algorithm research, impedance-model building and clinical data acquisition, supporting raw-data export and multi-algorithm comparison.

Read case
Chemical & Pharma Metallurgy & Materials

Resistance Tomography (ERT) for Liquid-Solid Two-Phase Flow Detection

Using the conductivity contrast between the solid and liquid phases, image the phase distribution and concentration changes of liquid-solid two-phase flow in pipes / vessels in real time — demonstrating online detection for slurry transport, crystallisation and particle suspension.

Read case