Electrical Resistance Tomography System
TJUERT 多截面系统: ERT sensors with 16, 32, 48 or 64 electrodes.
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, the standard configuration uses 16 electrodes per plane with up to 4 planes for 3D imaging; in a 64-electrode setup it reaches 80 fps, and 1000 Mbps wired/wireless Ethernet supports remote data transmission.
Front panel: 64-channel electrode connector matrix across four planes (Plane I–IV × Electrode 1–16).
Data acquisition unit: 4 planes × 16 electrodes (64 channels) with on-board FPGA and gigabit Ethernet.
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 over 1 kHz - 1 MHz. No warm-up required — operational immediately after power-on. Interfaces include 1000 Mbps wired/wireless Ethernet, USB 2.0 and RS-232; 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
16 electrodes per plane standard; 1-8 planes acquired synchronously to reconstruct the 3D impedance distribution.
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Industrial and medical applications
Industrial gas-liquid / liquid-solid two-phase flow and slurries, plus biomedical impedance and pulmonary ventilation measurement.
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High-speed acquisition
80 fps in the 64-electrode configuration — captures transients in fast dynamic processes.
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Open at the algorithm layer
Raw boundary-measurement data can be exported to MATLAB / Python for custom reconstruction algorithms and publishable research.
Specifications
Hardware platform
Xilinx FPGA / ZYNQ heterogeneous processor; 14-bit 10 Msps ADC; 14-bit 125 Msps DAC.
Excitation signal
Switchable sinusoidal / square wave; 1 kHz - 1 MHz; 0.3 - 10 mApp amplitude.
Measurement channels
16 / 32 / 64 channels — corresponding to 1-4 plane 3D imaging configurations.
Imaging rate
Up to 80 fps in the 64-electrode configuration; real-time transmission over 1000 Mbps Ethernet.
Spatial resolution
No worse than 5% of the cross-section; conductivity resolution from 0.5%.
System accuracy
±1% under typical conditions; no warm-up required — measurement begins at power-on.
Communication interfaces
1000 Mbps Ethernet (wired / wireless), USB 2.0, RS-232.
Operating environment
0 - 65 ℃; AC 100 - 240 V / 50 - 60 Hz; IP22D protection rating.
Gallery
Companion Software
Imaging / reconstruction software that pairs with this instrument
