TU Darmstadt / ULB / TUbiblio

Just Noticeable Differences of Low-Intensity Vibrotactile Forces at the Fingertip

Hatzfeld, Christian and Werthschützky, Roland Isokoski, Poika (ed.) (2012):
Just Noticeable Differences of Low-Intensity Vibrotactile Forces at the Fingertip.
In: LNCS, In: Haptics: Perception, Devices, Mobility, and Communication, Springer, [Book Section]

Abstract

The presented study measures JNDs of vibrotactile force amplitudes at nine frequencies in the bandwidth of 5 ... 1000 Hz with 29 subjects taking part in the study. Reference stimuli are placed near the absolute perception threshold of these frequencies, therefore very high discrimination thresholds of 20 dB on average (with a runaway value of 40 dB @ 1000 Hz) are measured. This is in accordance to observations of Weber’s Law for reference stimuli near the perception threshold. Statistical analysis suggests influence of fingertip size on the results, but no influence of fine motor activity (i.e. playing musical instruments, handicraft, computer games) could be asserted with the given dataset. Results can be used to facilitate task-specific design of sensors and actuators in near-threshold contact situations.

Item Type: Book Section
Erschienen: 2012
Editors: Isokoski, Poika
Creators: Hatzfeld, Christian and Werthschützky, Roland
Title: Just Noticeable Differences of Low-Intensity Vibrotactile Forces at the Fingertip
Language: English
Abstract:

The presented study measures JNDs of vibrotactile force amplitudes at nine frequencies in the bandwidth of 5 ... 1000 Hz with 29 subjects taking part in the study. Reference stimuli are placed near the absolute perception threshold of these frequencies, therefore very high discrimination thresholds of 20 dB on average (with a runaway value of 40 dB @ 1000 Hz) are measured. This is in accordance to observations of Weber’s Law for reference stimuli near the perception threshold. Statistical analysis suggests influence of fingertip size on the results, but no influence of fine motor activity (i.e. playing musical instruments, handicraft, computer games) could be asserted with the given dataset. Results can be used to facilitate task-specific design of sensors and actuators in near-threshold contact situations.

Title of Book: Haptics: Perception, Devices, Mobility, and Communication
Series Name: LNCS
Number: 7282
Publisher: Springer
Uncontrolled Keywords: JND – force perception – vibrotactile stimuli
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Measurement and Sensor Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology
Event Title: Haptics: Perception, Devices, Mobility, and Communication
Date Deposited: 13 Jun 2012 14:26
Additional Information:

Proceedings of the Eurohaptics Conference, Tampere, FIN, 2012

Identification Number: doi:10.1007/978-3-642-31404-9_8
Related URLs:
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)

View Item View Item