Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"thermal actuators"”.
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Modeling and Control of Surface Micromachined Thermal Actuators
… the transient and steady-state response of thermal microactuators is desirable to provide guidance for design and operation. However, modeling the full response of thermal actuators is challenging due to the temperature-dependent material properties and nonlinear deformations that must be …
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The study of weak ferromagnetism by andreev reflection spin spectroscopy and development of bimorph electro-thermal actuators
… strain of Si3N4 structures. Such electro-thermal actuators could find applications in MEMS technology.</p>
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On-Chip Actuation of Compliant Bistable Micro-Mechanisms
… be switched in either direction using on-chip thermal actuation. The energy storage and bistable behavior of the mechanisms are achieved through the elastic deflection of compliant segments. The pseudo-rigid-body model was used for the compliant mechanism design, and for analysis of the …
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Microactuators and their application in micro-opto-electro-mechanical systems (MOEMS)
Microactuators are active elements for microelectromechanical systems (MEMS), and are used to provide force to move the MEMS device in the way required. Therefore, their force characteristics, displacement capabilities and velocity ranges are of importance, and require to be investigated. Scratch …
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A bidirectional MEMS thermal actuator as the building block for a programmable metamaterial
This thesis presents a novel bidirectional MEMS thermal actuator that is intended to be implemented as the building block for a microarchitectured material. The successful proof of concept demonstrates the potential for a new level of miniaturization for the technology that would improve existing …
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Fully Compliant Tensural Bistable Mechanisms (FTBM) with On-Chip Thermal Actuation
… with optimization. In a coupled design approach, thermal actuators were optimized to the force and displacement requirements of the bistable mech-anisms, and selected FTBM devices were combined in switching systems with the result-ing Thermomechanical In-plane Microactuators (TIMs) and Amplified …
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NeuroModular - A Modular Backend for Fiber-Based Wireless Bioelectronic Interfaces
… microscale temperature sensors, and thermal actuators, and they can be extended to accommodate additional functionalities. The modules can operate using different power solutions, depending on experimental needs: various sizes and capacities of batteries for wireless operation, or …
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Integrated Piezoresistive Sensing for Feedback Control of Compliant MEMS
Feedback control of MEMS devices has the potential to significantly improve device performance and reliability. One of the main obstacles to its broader use is the small number of on-chip sensing options available to MEMS designers. A method of using integrated piezoresistive sensing is proposed …
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Dual-stage Thermally Actuated Surface-Micromachined Nanopositioners
… with electrostatic, piezoelectric, magnetic, thermal, and electrochemical actuators. They move with as many as six degrees of freedom; some are composed of multiple stages that stack together. Both macro-scale and micro-scale nanopositioners have been fabricated. A summary of recent research …
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Synthesis and kinetic processes in designed polymers
… residues and the protein conformation. Thermal denaturation studies show that the protein melting temperatures decrease and that protein folding cooperativity increases upon interaction with the polymer. We demonstrate the exact extent of the changes is protein-dependent, as some …