Vibration Propagation on the Skin of the Arm
Vibrotactile interfaces are an inexpensive and non-invasive way to provide performance feedback to body-machine interface users. Interfaces for the upper extremity have utilized a multi-channel approach using an array of vibration motors placed on the upper extremity. However, for successful percept...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/20/4329 |
| _version_ | 1818888446244028416 |
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| author | Valay A. Shah Maura Casadio Robert A. Scheidt Leigh A. Mrotek |
| author_facet | Valay A. Shah Maura Casadio Robert A. Scheidt Leigh A. Mrotek |
| author_sort | Valay A. Shah |
| collection | DOAJ |
| description | Vibrotactile interfaces are an inexpensive and non-invasive way to provide performance feedback to body-machine interface users. Interfaces for the upper extremity have utilized a multi-channel approach using an array of vibration motors placed on the upper extremity. However, for successful perception of multi-channel vibrotactile feedback on the arm, we need to account for vibration propagation across the skin. If two stimuli are delivered within a small distance, mechanical propagation of vibration can lead to inaccurate perception of the distinct vibrotactile stimuli. This study sought to characterize vibration propagation across the hairy skin of the forearm. We characterized vibration propagation by measuring accelerations at various distances from a source vibration of variable intensities (100−240 Hz). Our results showed that acceleration from the source vibration was present at a distance of 4 cm at intensities >150 Hz. At distances greater than 8 cm from the source, accelerations were reduced to values substantially below vibrotactile discrimination thresholds for all vibration intensities. We conclude that in future applications of vibrotactile interfaces, stimulation sites should be separated by a distance of at least 8 cm to avoid potential interference in vibration perception caused by propagating vibrations. |
| first_indexed | 2024-12-19T16:53:15Z |
| format | Article |
| id | doaj.art-fc52d582056c43a59260432b9d77982b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-19T16:53:15Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-fc52d582056c43a59260432b9d77982b2022-12-21T20:13:28ZengMDPI AGApplied Sciences2076-34172019-10-01920432910.3390/app9204329app9204329Vibration Propagation on the Skin of the ArmValay A. Shah0Maura Casadio1Robert A. Scheidt2Leigh A. Mrotek3Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI 53233, USADIBRIS, University of Genova, 16145 Genova, ItalyDepartment of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI 53233, USADepartment of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI 53233, USAVibrotactile interfaces are an inexpensive and non-invasive way to provide performance feedback to body-machine interface users. Interfaces for the upper extremity have utilized a multi-channel approach using an array of vibration motors placed on the upper extremity. However, for successful perception of multi-channel vibrotactile feedback on the arm, we need to account for vibration propagation across the skin. If two stimuli are delivered within a small distance, mechanical propagation of vibration can lead to inaccurate perception of the distinct vibrotactile stimuli. This study sought to characterize vibration propagation across the hairy skin of the forearm. We characterized vibration propagation by measuring accelerations at various distances from a source vibration of variable intensities (100−240 Hz). Our results showed that acceleration from the source vibration was present at a distance of 4 cm at intensities >150 Hz. At distances greater than 8 cm from the source, accelerations were reduced to values substantially below vibrotactile discrimination thresholds for all vibration intensities. We conclude that in future applications of vibrotactile interfaces, stimulation sites should be separated by a distance of at least 8 cm to avoid potential interference in vibration perception caused by propagating vibrations.https://www.mdpi.com/2076-3417/9/20/4329vibration propagationvibrotactile displaysupper extremityuser feedback |
| spellingShingle | Valay A. Shah Maura Casadio Robert A. Scheidt Leigh A. Mrotek Vibration Propagation on the Skin of the Arm Applied Sciences vibration propagation vibrotactile displays upper extremity user feedback |
| title | Vibration Propagation on the Skin of the Arm |
| title_full | Vibration Propagation on the Skin of the Arm |
| title_fullStr | Vibration Propagation on the Skin of the Arm |
| title_full_unstemmed | Vibration Propagation on the Skin of the Arm |
| title_short | Vibration Propagation on the Skin of the Arm |
| title_sort | vibration propagation on the skin of the arm |
| topic | vibration propagation vibrotactile displays upper extremity user feedback |
| url | https://www.mdpi.com/2076-3417/9/20/4329 |
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