Essays about: "Piezoelectric Element"

Showing result 6 - 10 of 11 essays containing the words Piezoelectric Element.

  1. 6. Tactile resonance method for measuring stiffness in soft tissue - evaluation of piezoelectric elements and impression depth using a silicone model

    University essay from Umeå universitet/Institutionen för fysik

    Author : Tobias Tovedal; [2017]
    Keywords : Tissue stiffness; Resonance sensor; Prostate cancer; Piezoelectric; Tactile sensor;

    Abstract : An instrument is being developed at the Department of Biomedical Engineering; Research and Development (MT-FoU), at the University Hospital of Umeå with the aim to detect prostate cancer ex vivo. Using a combination of tactile resonance technology and Raman spectroscopy the instrument is intended to be used in the operating room during radical prostatectomy to identify positive surgical margins. READ MORE

  3. 7. Improvements in reproducibility, throughput and capacity of microfluidic acoustic trapping systems

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Daniel Glifberg; [2016]
    Keywords : acoustic trapping; microfluidics; acoustofluidics; Technology and Engineering;

    Abstract : Acoustic trapping is a novel technology that allows for microfluidic sample preparation and pretreatment. The aim of this text is to give the reader a general insight in microfluidics with a focus on acoustic trapping. READ MORE

  4. 8. Simulation and study of passive shunt damping of a composite plate by embedded PZT transducers

    University essay from KTH/Lättkonstruktioner

    Author : Robert Jansson; [2016]
    Keywords : ;

    Abstract : This report investigates the possibility of simulating a fiber composite plate with embedded piezoelectric transducers connected to shunt circuits in order to control vibration. The simulation model is validated in steps of discipline, both analytic and experimentally. READ MORE

  5. 9. Open Loop Control of Piezoelectric Cantilever Speaker

    University essay from Linköpings universitet/Reglerteknik

    Author : John Wilhelms; Marcus Trulsson; [2015]
    Keywords : Piezoelectric speaker; Bimorph Cantilever Actuator; Physical beam modeling;

    Abstract : Actuating a cantilever piezoelectric element over a frequency spectrum, the movement will show resonances and hysteresis behavior not present in the input signal. Excursion modeling and open loop control of a cantilever piezoelectric bimorph actuator was studied in this thesis, with the aim to enhance the actuator's movement to more accurately render audible input. READ MORE

  6. 10. Modelling a piezoelectric-driven actuator for active flow control

    University essay from Linköpings universitet/Reglerteknik; Linköpings universitet/Tekniska högskolan

    Author : Emma Ring; [2014]
    Keywords : Piezoelectric actuator; Lumped Element Modelling; Equivalent circuits; Active Flow Control; Simulink;

    Abstract : Flow control is an area of research of particular interest within automotive and aerospace industries since methods used to affect the fluid flow around vehicles can reduce drag and therefore lower their fuel consumption. One of these methods, which has generated a lot of interest in later years, is called active flow control and uses different types of actuators to impact the surrounding flow. READ MORE