Development Of A Test Bed For Ultrasonic Transducer Characterization (1 S/B)

Evaluation and tuning of ultrasonic transducer performances can be realized with the help of a test bench. This setup consists of a physical test bed with the transducer and associated components such as a vector network analyzer, amplifiers and electrical matching networks. A virtual environment models the behavior of these networks. Individual network blocks are built and cascaded as single black box model using Python scikit-rf Due to the intended modularity of the system in soft- and hardware, we can guarantee high flexibility of the setup. This means that the system can be adapted to operate for a wide variety of transducer types and setups. **Status:** Available Looking for 1 Semester/Bachelor students **Prerequisites:** - Analog Mixed Signal Design - Network Theory (helpful but not required) - Python (packages: numpy, scipy, scikit-rf) - PCB Design **Character:** - 20% Literature research - 40% Programming - 30% PCB design - 10% Testing

Evaluation and tuning of ultrasonic transducer performances can be realized with the help of a test bench. This setup consists of a physical test bed with the transducer and associated components such as a vector network analyzer, amplifiers and electrical matching networks. A virtual environment models the behavior of these networks. Individual network blocks are built and cascaded as single black box model using Python scikit-rf

Due to the intended modularity of the system in soft- and hardware, we can guarantee high flexibility of the setup. This means that the system can be adapted to operate for a wide variety of transducer types and setups.

**Status:** Available

Looking for 1 Semester/Bachelor students

**Prerequisites:**
- Analog Mixed Signal Design
- Network Theory (helpful but not required)
- Python (packages: numpy, scipy, scikit-rf)
- PCB Design

**Character:**
- 20% Literature research
- 40% Programming
- 30% PCB design
- 10% Testing

**Hardware** - Development of a customized PCB design for the connection of a vector network analyzer (VNA), bidirectional coupler(s), amplifier(s), matching network(s), and the device under test (transducer) - Characterization of the network blocks using a VNA (Frequency and Power Analyses) **Software** - Implementation of a modular design in software: Network blocks + building a cascaded network - Simulation and test

**Hardware**
- Development of a customized PCB design for the connection of a vector network analyzer (VNA), bidirectional coupler(s), amplifier(s), matching network(s), and the device under test (transducer)
- Characterization of the network blocks using a VNA (Frequency and Power Analyses)

**Software**
- Implementation of a modular design in software: Network blocks + building a cascaded network
- Simulation and test

Federico Villani (villanif@ethz.ch) Dr. Christoph Leitner (christoph.leitner@iis.ee.ethz.ch)

Federico Villani (villanif@ethz.ch)
Dr. Christoph Leitner (christoph.leitner@iis.ee.ethz.ch)