Sökning: "piezoelectric PZT"
Visar resultat 1 - 5 av 6 uppsatser innehållade orden piezoelectric PZT.
1. Application of Lamb waves using piezoelectric technique for structure health monitoring
M1-uppsats, KTH/Hälsoinformatik och logistikSammanfattning : Structural health monitoring (SHM) is damage detection strategy for aerospace, civiland mechanical infrastructure. This project tries to show that Lamb waves, that are being generated and sensed with piezoelectric transducers, can be used for damage detection in a SHM system. LÄS MER
2. Enhancing Sensing in Nanoscale: Investigation of Smart Nanomechanical Cantilever Array
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : In this report, a novel smart nanocantilever with self-deflection sensor using embedded piezo-resistor and self-actuation using integrated piezo-electric actuator is proposed, designed and simulated to enable highly sensitive label free biosensor and ultra-short cantilever probe for AFM applications. The smart nanocantilever comprises of a triangular Si3N4 nanocantilever (10µm long, 400nm width and 100nm thickness) connected to a multi-layer support structure (Si3N4 (100nm)/PZT (100nm)) having n-type silicon piezo resistor (7µm long ,2µm width and 20nm thickness) embedded in the Si3N4 layer in both the support structure and nanocantilever. LÄS MER
3. Preparation and Characteristics of Bi0.5Na0.5TiO3 based Lead-Free thin films by Pulsed Laser Deposition
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Lead-based piezoelectric materials, such as PbZrxTi1-xO3 (PZT), have attracted considerable attention and have been widely used in actuators, sensors and transducers due to their excellent electric properties. However, considering the toxicity of lead and its oxides, environmentally friendly lead-free piezoelectric materials are attracting more attention as potential replacements for PZT. LÄS MER
4. An Investigation on PVDF Piezoelectric Elements and Linear Array Transducers
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk akustik; Lunds universitet/Institutionen för byggvetenskaperSammanfattning : Ultrasonic waves are widely used in different application e.g. for sonar scanning in water and fetal imaging. Furthermore it is used for doing measurements on different materials to determine the thickness of the material or the velocity of sound inside it. LÄS MER
5. Fabrication and Characterization of doped thin film PZT
Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)Sammanfattning : MEMS structures utilizing the piezoelectric effect are used to fabricate a wide variation of sensingand actuating devices. The most common piezoelectric material for MEMS is PZT which has beenintensively investigated. LÄS MER