Professor Tan then described how signals at different frequencies can feel. "A 10-15 Hz signal feels like 'flutter,' a 30-50 Hz signal feels 'rough' (like a jack hammer), and above 100Hz , the sensation is 'smooth vibration'," continued Tan.
The chart below shows the performance envelopes of the three PowerHap actuators. Note that all are well above the human detection threshold over a wide range of frequencies vs. the LRA solution with a narrow frequency range.
Another important feature of the PowerHap actuator and Boréas driver combination is the ability to deliver a very low latency response speed of less than 1ms at the system level - not just the actuator. Low latency is important to get fast feedback so the user doesn't keep pressing a button or pressing harder because the haptic response to the touch was too slow.
Finally, TDK summarized the PowerHap performance specifications compared to competitive technologies.
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