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Analysis and Reduction of Time Response in Thermally Activated Shape Memory Alloys

Publications associées (33)

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Microchannel plates based on amorphous silicon have the inherent capability to overcome the existing spatial and temporal resolution limitations of single photon detectors. A Monte Carlo model-based study is presented here that serves to exploit their full ...

2022

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Shape Memory Alloys (SMAs) are a type of smart materials that reacts mechanically to heat. Due to their complex behavior, they are often used in a simple geometry such as wires. This constrains the output displacement of the alloy to a simple linear contra ...

2021

Position control of shape memory alloys using a thermal video camera

Dan Cisier

To be able to use shape memory alloy (SMA) as actuators for precision grippers a precise controller is needed. Due to physical constraints, the controller needs to be either sensorless or using only smalls sensors. This physical constraint imposes to find ...

2021

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The sense of touch is underused in today’s virtual reality systems due to lack of wearable, soft, mm-scale transducers to generate dynamic mechanical stimulus on the skin. Extremely thin actuators combining both high force and large displacement are a long ...

2020

Design and Optimization of a Low Power and Fast Response Viscometer Used for Determination of the Natural Gas Wobbe Index

Danick Briand, Pierre-André Farine, Gaël André Léon Farine, Conor Joseph Slater, Marjan Shaker

This paper reports on the design of a microsystem-based thermal gas viscometer used for the determination of the quality of natural gas and its optimization through modification of its two main components: the hotplate and the capillary tube. Features, suc ...

2019

Design and fabrication of miniaturized shape memory alloy gripper prototype

Grippers, currently used in Industry, are not suited for clean room application. Thus, a novel type of smart gripper is being designed using Shape Memory Alloys (SMA). In the development of this Smart Gripper, the modelling of the material is quite critica ...

2019

Radial-Force-Based Swirling Actuator with Surface-Permanent-Magnet Structure for Low-Speed High-Torque Applications

Adrien Jean-Michel Thabuis

This paper proposes a swirling actuator that utilizes the electromagnetic radial force and a swirling gear to generate rotational torque. This actuator converts the swirling motion to the rotational motion and is suitable for low-speed high-torque applicat ...

IEEE2019

Latency and Backlog Bounds in Time-Sensitive Networking with Credit Based Shapers and Asynchronous Traffic Shaping

Jean-Yves Le Boudec, Eleni Stai, Ehsan Mohammadpour, Maaz Mashood Mohiuddin

We compute bounds on end-to-end worst-case latency and on nodal backlog size for a per-class deterministic network that implements Credit Based Shaper (CBS) and Asynchronous Traffic Shaping (ATS), as proposed by the Time-Sensitive Networking (TSN) standard ...

IEEE2018

A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling

John Richard Thome, Mirco Magnini

Boiling heat transfer in microchannels has been investigated extensively in the last two decades. However, most results from independent experimental studies display a substantial disagreement on the influence of the flow conditions and mechanisms on the h ...

Elsevier France-Editions Scientifiques Medicales Elsevier2016

Spark discharge synthesis of semiconductor nanoparticles for thick-film metal oxide gas sensors

Thomas Maeder

Traditional methods of synthesis of metal-oxide gas sensing materials for semiconductor sensors are based on wet sol-gel processes. However, these processes lead to the formation of hydroxyl groups on the surface of oxide particles being responsible for th ...

Elsevier2016