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Tom Liebing, M. Sc.

Hamburg University of Technology

Institute for Mechatronics (M-4)

Building O (Eissendorfer Str. 38)
Room 016

Phone: +49 (0) 40 428-78-4207
tom.liebing(at)tuhh.de

Research

Electrical Impedance Tomography SFB 1615 - A02
Measurement Electronics  
Signal Processing  

I am fascinated by the development of precise electrical measurement electronics and the wide range of challenges it involves – from selecting appropriate sensor principles and designing the analog front-end circuitry to implementing digital signal processing and integrating everything into complex systems.

As an associate of the Collaborative Research Center CRC 1615 Smart Reactors, I develop modular measurement systems capable of performing fast impedance measurements across many parallel channels. The goal is to derive meaningful process parameters from these measurements in real time – for example, to monitor or control electrochemical reactors.

This work combines measurement precision with system-level integration and opens up exciting interfaces to data processing, modeling, and process automation.

At iMEK, I have conceived and developed the following systems as part of my research activities:

  • Wearable EIT system: extremely compact, worn on the arm, enabling hand gesture recognition via Bluetooth.

  • USB-based EIT system: very small form factor, microcontroller-controlled, designed for flexible applications.

  • Modular multi-channel system: parallel measurement, flexibly expandable, high frame rate, ideal for complex experiments.

Teaching

In the winter semester 2024/25, I redesigned the course “Fundamentals of Electrical Engineering” for Mechanical Engineering students as the responsible research associate.
Instead of a traditional written exam, a theory–practice-oriented assessment format was introduced: students now complete weekly assignments in the form of simulations.

To enable this, I developed a concept for task creation and implemented a semi-automated evaluation workflow using Python and PySpice. In addition, I adapted the lecture exercises to the new examination format and, together with my colleague Mattis Mollinski, introduced a hands-on practical exercise. These changes received very positive feedback from many students.

Furthermore, I contribute to the design of experimental setups for the course Measurement Technology for Mechanical Engineering students and supervise groups in the English-taught course “Applied Design Methodology in Mechatronics.” For the summer term 2024, the task was to detect objects in soil using impedance measurements. To support this, I designed a circuit board that enables four-point measurements, is easy to program, and can be seamlessly integrated into student prototypes.

Teaching PCB
Teaching PCB – Vierpunktmessungen für Impedanzexperimente, speziell für Studierendenprojekte entwickelt.

Publications

Feel free to visit my ORCiD web page:
orcid.org/0000-0003-3162-4783