14 June 2001 Multifunction piezoelectric transducers for handheld electronics
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This paper explains how a piezoelectric bimorph actuator may be used as a multifunction device in a handheld electronics product - replacing traditional buzzers, rotary motors, and voice coil speakers to supply tone alert, vibrating alert and loudspeaker functions in a single device. The first development hurdle was to establish performance metrics which could be used to compare the piezoelectric device to traditional technologies. Subjective user testing was combined with mathematical modeling to create design specifications. The next challenge was to establish design guidelines, since the device performance is integrally tied to the OEM housing design. Finally, new production testing methodologies were developed that would correlate stand-alone component performance with final system performance.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard R. Perkins, Richard R. Perkins, } "Multifunction piezoelectric transducers for handheld electronics", Proc. SPIE 4332, Smart Structures and Materials 2001: Industrial and Commercial Applications of Smart Structures Technologies, (14 June 2001); doi: 10.1117/12.429690; https://doi.org/10.1117/12.429690

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