The Effect of Actuation Speed on the Perception Threshold of a Squeezing Soft Actuator

article


Weda, J.

Erp, J.V.

Mader, A.
The actuation speed of a pressure stimulus may influence its perception threshold. This is relevant for the design of haptic actuators and haptic interaction. We ran a study using a motorized ribbon to apply pressure stimuli (squeezes) to the arm at three different actuation speeds and used the PSI method to find the perception threshold for 21 participants. We found a significant effect of actuation speed on the perception threshold. Namely, a lower speed seems to increase the thresholds of normal force, pressure and indentation. This could be due to multiple factors like temporal summation, stimulating a larger population of mechanoreceptors for faster stimuli, and different responses of SA and RA receptors to stimuli of varying speeds. Our results show that actuation speed is an important parameter for the design of new haptic actuators and the design of haptic interaction for pressure. Author
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Application speedPressurePsychophysicsRadio frequencySkinSoft actuatorSqueezingHaptic interfacesMice (computer peripherals)Application speedForceHairHaptics interfacesParticle measurementPerception thresholdsPsychophysicRadiofrequenciesSoft actuatorsSqueezingActuators
TNO Identifier
986392
Repository link
https://resolver.tno.nl/uuid:c18f74ba-5da0-468a-a115-846f0cb85a6e
ISSN
19391412
Source
IEEE Transactions on Haptics, pp. 1-6.
Pages
1-6
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