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Erwan Normand
2024-10-21 11:39:31 +02:00
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2-related-work/2-wearable-haptics.tex
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@@ -151,7 +151,7 @@ A \LRA consists of a coil that creates a magnetic field from an alternative curr
They are more complex to control and a bit larger than \ERMs.
Each \LRA is designed to vibrate with maximum amplitude at a given resonant frequency, but won't vibrate efficiently at other frequencies, \ie their bandwidth is narrow, as shown in \figref{azadi2014vibrotactile}.
A voice-coil actuator is a \LRA but capable of generating vibration at two \DoF, with an independent control of the frequency and amplitude of the vibration on a wide bandwidth.
They are larger in size than \ERMs and \LRAs, but can generate more complex renderings.
They are larger than \ERMs and \LRAs, but can generate more complex renderings.
Piezoelectric actuators deform a solid material when a voltage is applied.
They are small and thin and provide two \DoFs of amplitude and frequency control.