Humans have five senses. However, most technology only communicates with us through hearing and sight. That's where haptic feedback comes in, adding a third sense: touch. Our skin is highly sensitive to vibrations between 100 Hz and 1 kHz, with peak sensitivity around 250 Hz ± 50 Hz making it the most sensitive sense towards vibrations.
In today's world, high-definition haptics are becoming increasingly popular in human-machine interfaces (HMI) to enhance the user experience. Like HD TV, which offers higher resolution pictures for an improved user experience, HD haptics let users perceive a high-quality vibrotactile feedback.
Piezoelectric actuators have unique features to reach HD haptic feedback, and TDK is a major player with extensive know-how in piezoelectrics.
TDK offers a comprehensive portfolio of piezoelectric actuators for a wide range of haptic applications: