Concept

Amortisseur harmonique

Publications associées (54)

Experimental investigation of added mass effects on a Francis turbine runner in still water

The mechanical design of hydraulic turbines is conditioned by the dynamic response of the runner that is usually estimated by a computational model. Nevertheless, the runner has complex boundary conditions that are difficult to include in the computational ...

2006

Bandpass filters for 8 GHz using solidly mounted bulk acoustic wave resonators

Paul Muralt, Roman Lanz

Frequency shift, design, and fabrication issues have been investigated for the realization of 8 GHz handpass filters based on AlN thin film bulk acoustic wave resonators. Fabrication includes well-textured AlN thin films on Pt (111) electrodes and SiO2/AlN ...

2005

Fabrication and characterization of micromachined accelerometers based on PZT thin films

Paul Muralt, Serge Hediger

In this paper the simple accelerometers based on PZT thin films were developed and characterized. The functions of seismic mass and spring are given by a boss loaded cantilever structure. The strain of the cantilever is detected by a Pb(Zr,Ti)O-3 thin film ...

1999

Design of a novel thin-film piezoelectric accelerometer

Nava Setter, Paul Muralt

A novel piezoelectric thin-film accelerometer has been designed and its performance has been analysed. The piezoelectric thin film (PZT for example) is delineated into an array of pads to reduce the sensor capacitance. By filling the cavity around the PZT ...

1996

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