Force Sensors for the Measurement of

Finger Forces in Clarinet Playing

Institut: Elektrotechnik u. Informationste
Autor: Michael Weilguni
ISBN: 9783903024144
Seitenanzahl: 145
Herausgeber: TU Verlag
Erscheinungsort: Wien 44

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Art.Nr. 0063

Force Sensors for the Measurement of

Force Sensors for the Measurement of

Force Sensors for the Measurement of

Force Sensors for the Measurement of
Finger Forces in Clarinet Playing

Institut: Elektrotechnik u. Informationste
Autor: Michael Weilguni
ISBN: 9783903024144
Seitenanzahl: 145
Herausgeber: TU Verlag
Erscheinungsort: Wien


ABSTRACT

When playing the clarinet, the musician has to press down and release multiple certain toneholes and keys with the fingers, acting as valves. While other expressive parameters such as dynamics, articulation, or fine intonation are controlled by the air stream and tongue of the musician, the fingers only control pitch. However, clarinetists might not always use minimal forces in fingering the clarinet. This overuse may influence the quality of playing or even result in pain.
tThe work presented in this PhD thesis focuses on the development of sensors to measure the finger force during clarinet playing. These unique finger force sensors feature ringshaped geometries, fitting around the tone-holes of the clarinet. A clarinet, especially modified for this application, is used to accommodate the force sensors, maintaining completely «natural» performances like playing on an ordinary, unmodified clarinet.
tLow temperature co-fired ceramics (LTCC) technology is selected for the sensor’s package, providing rapid prototyping of different geometries and the integration of sensing elements, interconnections, and active electronic devices. Mechanical parameters – modulus of elasticity and flexural strength – of different kinds of LTCC tape materials as well as a zirconia high temperature ceramic tape material are investigated for their applicability as sensing element. Furthermore, the performance of piezoresistive thick-film resistors is tested on those substrates to find a compatible piezoresistor/termination/substrate combination. As consequence, the zirconia ceramic tape material will be selected for the fabrication of the sensing elements.
tA detailed description about the fabrication of the finger force sensors is given, followed by the mechanical characterization of the sensors. Finally, sample performances on the modified clarinet are presented, showing the dynamic properties of the finger force sensors und realistic conditions and their ability to also determine the position of a finger on the tonehole.

Michael Weilguni


Short Biography (About the Author):
Michael Weilguni was born on April 15, 1983 in Linz. After graduating from the Höhere Technische Bundeslehranstalt Leonding (department for electronics) he served at the military music with the position of a principal clarinetist. Subsequently, he studied electrical engineering at the TU Wien, Vienna, where he received the degree of a Diplomingenieur (MSc) in 2009. From 2009 to 2013 he was employed as project assistant at the Institute of Sensor and Actuator Systems, TU Wien, where he worked on the scientific question of how the finger force as function of time during clarinet playing could be assessed as an unbiased measure for its sound and graduated a PhD degree in 2013. Currently he is employed at TDK in Deutschlandsberg, Austria, where he is involved in innovative themes, especially in the field of piezoelectric transformers.

 

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