Thomas Maeder

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Related publications (96)

Optimisation of industrial production of low-force sensors – adhesive bonding of force-centring ball

Peter Ryser, Thomas Maeder, Caroline Jacq, Maxime Blot

This work addresses the issue of attaching the force-centring part (a round ball) to the load cell of a force sensor, a piezoresistive thick-film Wheatstone bridge deposited onto a ceramic cantilever. As the current soldering process requires expensive met ...

IOP2015

Design and packaging of a highly integrated microreactor system for high-temperature on-board hydrogen production

John Richard Thome, Paul Muralt, Thomas Maeder, Navid Borhani, Bo Jiang, Dimos Poulikakos

Highlights • A “plug-and-play” microreaction system for high-temperature reactions (>500 °C). • Efficient thermal decoupling for using standard electrical/fluidic connections. • Automatic and accurate temperature control for calorimetric measurements. • A ...

Elsevier2015

Screen-printed electrochemical chromium (VI) sensing electrodes for effluent bioremediation monitoring

Thomas Maeder, Caroline Jacq

Simple, low-cost and acid-resistant carbon-based screen-printed electrodes (SPEs) addressed to detection of hexavalent chromium species, Cr(VI), in sulfuric acid at pH about 1, were prepared and characterized. Working and counter electrodes were prepared j ...

Elsevier2014

Fabrication and Test of High-Temperature Ceramic Transformer

Peter Ryser, Thomas Maeder, Conor Joseph Slater

This work describes the fabrication and test of a high temperature (+200°C) capable high frequency transformer. It was manufactured using Low Temperature Co-fired Ceramic (LTCC) technology, which allowed the complex multilayer structure of ceramic and meta ...

2014

A thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro-reformer and functional micro-fluidic carrier

Paul Muralt, Thomas Maeder, Claude Muller, Bo Jiang, Alex Dommann, Dimos Poulikakos

Low temperature micro-solid oxide fuel cell (micro-SOFC) systems are an attractive alternative power source for small-size portable electronic devices due to their high energy efficiency and density. Here, we report a thermally self-sustainable reformer – ...

Elsevier2014

Tuneable PTC effect in polymer-wax-carbon composite resistors

Peter Ryser, Thomas Maeder, Caroline Jacq, Ludivine Ammon

Purpose: The resistivity dependence on temperature of composite resistors made of carbon fillers dispersed in an organic matrix are known to be strongly affected by the matrix thermal expansion. High positive temperature coefficient (PTC) effects, i.e. ess ...

Emerald2014

A miniature frequency-stabilized VCSEL system emitting at 795nm based on LTCC modules

Nico de Rooij, Thomas Maeder, Yves Pétremand, Fabrizio Vecchio

We present a compact frequency-stabilized laser system locked to the Rubidium absorption line of a micro-fabricated reference cell. A printed circuit board (PCB) is used to carry all the components and part of the electronics, and low-temperature co-fired ...

Elsevier2013

FireBird: PowerPC e200 Based SoC for High Temperature Operation

Andreas Peter Burg, Yusuf Leblebici, Thomas Maeder, Pascal Andreas Meinerzhagen, Conor Joseph Slater, Ömer Cogal, Carl Christian Sten Dominic Senning, Radisav Cojbasic

PowerPC Architecture microcontrollers are commonly used in embedded applications. In this work we present FireBird, the first PowerPC based SoC for reliable operation beyond 200C. It is a significant challenge to design SoCs for reliable operation at high ...

2013

Multi-injection microstructured reactor for intensification of fast exothermic reactions: proof of concept

Albert Renken, Lioubov Kiwi, Thomas Maeder, Bo Jiang, Julien Haber

Quasi-instantaneous exothermic reactions lead to the formation of unwanted hot spots even when carried out in conventional microstructured reactors (MSR) with tube diameter of 100 − 1000 μm. For this reason, alternative MSR designs are warranted to enable ...

Walter de Gruyter2013

Superparamagnetic anisotropic elastomer connectors exhibiting reversible magneto-piezoresistivity

Thomas Maeder

An anisotropic magnetorheological composite formed by dispersions of silver-covered magnetite microparticles (Fe3O4@Ag) in polydimethylsiloxane (PDMS) displaying electrical conduction only in one preferred direction is presented. A set-up for applying and ...

Elsevier2013

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A thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro-reformer and functional micro-fluidic carrier

Paul Muralt, Thomas Maeder, Claude Muller, Bo Jiang, Alex Dommann, Dimos Poulikakos

Elsevier2014