Student Roman Vaněk wrote his thesis on the topic of Electrical Impedance Tomography. He fulfilled all aspects of the assignment. After studying the necessary theoretical foundations, he independently designed a concept for a modular system, performed the necessary simulations, and designed and implemented the modules. He designed some modules on his own (active electrodes, control), updated others by correcting errors made by previous designers, and assisted other students in the development of some modules as part of a team collaboration. Overall, I rate student Vaněk’s approach very positively; he approaches his work professionally. I appreciate his research potential and publication activity (EEICT student competition, International Conference on Measurement, International Conference on Applied Electronics). Points proposed by supervisor: 100

The master thesis by Roman Vaněk focuses on the development of an experimental system for research into electrical impedance tomography. The goal of all related work is to design, develop, validate, and begin using a universal measurement system that will enable further research in this field. Since this is a complex system for research purposes, its development must undergo several iterations, or rather upgrades of its individual components. Roman Vaněk has so far authored several key components of the system himself. The goal of the thesis is to make further modifications and improvements, particularly to the system’s hardware solution.
In the introduction, the author provides a brief yet clear description of the EIT technology, using the specified requirements to determine the necessary basic parameters of the measurement hardware. As described in the subsequent section on the thesis’s contribution, he improved several existing system modules. He verified the newly proposed solutions through simulations and subsequently through experimental verification. He also designed, implemented, and verified additional necessary modules that were unsatisfactory in their previous state. The description of this section is detailed and of high quality. It is evident that he has excelled in mastering the challenges of developing mixed-mode signal hardware. In the conclusion, the entire work is evaluated, and further steps in the development of the entire system are proposed, which go beyond the scope of the thesis.
Mr. Vankě has fulfilled the requirements of the assignment. Here, I would recommend that separate documentation for future users be prepared for the individual modules in the future. It would be easier to work with than searching for parameters and functional description in the text of the thesis.
From a formal standpoint, the thesis is excellently written. Unfortunately, there are a number of typographical errors, but their severity does not significantly affect the overall quality of the presentation.
Despite the aforementioned critical remarks, I rate the thesis as excellent and recommend it for defense. Topics for thesis defence:

1. The thesis mentions that the developed system modules should be interconnected to verify overall functionality or at least partial functionality. To provide a better overall picture, it would be helpful to include photographic documentation of the existing modules, ideally showing them interconnected. Is it possible to include this in the presentation of the thesis results?
2. The description of the system’s hardware solution indicates that power is to be supplied via USB-C interface, so I assume from an external switched-mode AC/DC power supply. Won’t this cause interference in the measurement circuits?

Points proposed by reviewer: 95