Concept

Capacitive sensing

Publications associées (115)

Capacitive micro force sensors manufactured with mineral sacrificial layers

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Simon Wiedmer

In this work a prototype of micro force sensor of range μN...mN is presented. Instead of the traditional piezoresistive strain sensing through thick-film resistors used for higher forces, a more effective principle is used: measurement of beam displacement ...

2007

3D Hand Model Fitting for Virtual Keyboard System

Edoardo Charbon, Huan Du

In this paper, a 3D hand model fitting method is presented which can recover the accurate finger positions for a virtual keyboard system. The 3D hand model consists of a detailed polygonal skin driven by an underlying skeleton system. The system uses a str ...

2007

Fabrication of a Millinewton Force Sensor Using Low Temperature Co-fired Ceramic (LTCC) Technology

Peter Ryser, Thomas Maeder, Hansu Birol, Ingo Nadzeyka

This study is aimed at outlining the fabrication of a novel piezoresistive force sensor using LTCC technology, which operates at millinewton range, yet is compatible with low cost thick-film fabrication process. Mechanical and electrical characterization o ...

Elsevier2007

Improved echo volumar imaging (EVI) for functional MRI

Wietske Van der Zwaag

Echo volumar imaging (EVI) is a 3D modification of echo-planar imaging (EPI) that allows data from an entire volume to be acquired following a single RF excitation. EVI provides a high rate of volumar data acquisition, which is advantageous for functional ...

Wiley-Blackwell2006

Towards a Unified Top-Down Design Flow for Fully-Differential Logic Blocks with Improved Speed and Noise Immunity

Yusuf Leblebici, Stéphane Badel, Ilhan Hatirnaz

A new top-down design flow (RTL-to-GDSII) is proposed for achieving high-performance and noiseimmune designs consisting of differential logic blocks. The differential building blocks are based on the currentmode logic (CML), which offers true differentiali ...

2005

Selective molecular assembly patterning at the nanoscale: a novel platform for producing protein patterns by electron-beam lithography on Sio2/indium tin oxide coated glass substrates

Jeffrey Alan Hubbell

The creation of geometrically well-defined submicron structures on insulating substrates by e-beam lithography is hampered by surface charging. This problem becomes crucial when trying to create nanosized protein patterns by selective molecular assembly pa ...

2005

Charge-discharge kinetics of electric-paint displays

Ulf Anders Hagfeldt

The charge-discharge kinetics of electrochromic displays, based on porous nanostructured viologen-derivatized TiO2 films, were investigated by std. electrochem. techniques. Various display compns. and geometries were studied. Chronocoulometry data were ana ...

2004

Switch-speed considerations for viologen-metal oxide displays

Ulf Anders Hagfeldt

The charging kinetics of viologen-TiO2 displays was studied by electrochem. techniques. Resistive and capacitive effects were analyzed in terms of a simple model for the charging kinetics in optical switches. For large-segment devices the model resistance ...

2003

On-line biomass monitoring of CHO perfusion culture with scanning dielectric spectroscopy

Urs von Stockar, Ian William Marison, Christopher Cannizzaro

In this work, dielec. spectroscopy was used to monitor two CHO perfusion culture expts. (B14 and B16). The capacitance of the cell suspension was recorded every 20 min over an excitation frequency range of 0.2 MHz to 10.0 MHz. A phase plot of the capacitan ...

2003

Integrated sensors for PZT actuators based on thick-film resistors

Peter Ryser, Thomas Maeder, Jean-Marc Breguet, Arvid Bergander

Abstract—A common problem when using piezoceramic actuators for precise positioning is their hysteresis. Either external sensors such as capacitive or inductive probes, optical sensors or strain gauges are commonly used. The latter are the most favorable s ...

IEEE2002

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