Characterization of a smartphone size haptic rendering system based on thin-film ALN transduction on glass
Résumé
This paper presents for the first time
the characterization of a smartphone-size haptic
rendering system based on the friction modulation.
According to previous work and finite element
model, the A0 Lamb wave modes are needed to get
the haptic feedback effect. The device studied consists
of a thin film AlN transducers deposited on an
110×65 mm2 glass substrate. The transducer repartition
on the glass slab allows a clear central area of
90×49 mm2. Electrical and mechanical parameters of
the system are extracted from measurement. AlN
transducers used as sensors introduce the first step
to a feedback loop.
