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Characterization of Pneumatic Touch Sensors for a Prosthetic Hand

Svensson, Pamela LU ; Antfolk, Christian LU ; Malesevic, Nebojsa LU and Sebelius, Fredrik LU orcid (2020) In IEEE Sensors Journal 20(16). p.9518-9527
Abstract

This paper presents the results from the characterization of pneumatic touch sensors (sensing bulbs) designed to be integrated into myoelectric prostheses and body-powered prostheses. The sensing bulbs, made of silicone, were characterized individually (single sensing bulb) and as a set of five sensors integrated into a silicone glove. We looked into the sensing bulb response when applying pressure at different angles, and also studied characteristics such as repeatability, hysteresis, and frequency response. The results showed that the sensing bulbs have the advantage of responding consistently to pressure coming from different angles. Additionally, the output (pneumatic pressure) is dependent on the size of interacting object applied... (More)

This paper presents the results from the characterization of pneumatic touch sensors (sensing bulbs) designed to be integrated into myoelectric prostheses and body-powered prostheses. The sensing bulbs, made of silicone, were characterized individually (single sensing bulb) and as a set of five sensors integrated into a silicone glove. We looked into the sensing bulb response when applying pressure at different angles, and also studied characteristics such as repeatability, hysteresis, and frequency response. The results showed that the sensing bulbs have the advantage of responding consistently to pressure coming from different angles. Additionally, the output (pneumatic pressure) is dependent on the size of interacting object applied to the sensing bulb. This means that the sensing bulb will give higher sensation when picking up sharper objects than blunt objects. Furthermore, the sensing bulb has good repeatability, linearity with an error of 2.95± 0.40%, and maximum hysteresis error of 2.39± 0.17% on the sensing bulb. This well exceeds the required sensitivity range of a touch sensor. In summary, the sensing bulb shows potential for use in prosthetic hands.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
non-invasive, Pneumatic, sensing glove, sensory feedback, touch sensor
in
IEEE Sensors Journal
volume
20
issue
16
article number
9063472
pages
10 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85088463473
ISSN
1530-437X
DOI
10.1109/JSEN.2020.2987054
language
English
LU publication?
yes
id
cba6b3e5-9a18-4a0a-af1c-ea8491cdd732
date added to LUP
2021-01-08 13:43:50
date last changed
2022-04-26 23:08:38
@article{cba6b3e5-9a18-4a0a-af1c-ea8491cdd732,
  abstract     = {{<p>This paper presents the results from the characterization of pneumatic touch sensors (sensing bulbs) designed to be integrated into myoelectric prostheses and body-powered prostheses. The sensing bulbs, made of silicone, were characterized individually (single sensing bulb) and as a set of five sensors integrated into a silicone glove. We looked into the sensing bulb response when applying pressure at different angles, and also studied characteristics such as repeatability, hysteresis, and frequency response. The results showed that the sensing bulbs have the advantage of responding consistently to pressure coming from different angles. Additionally, the output (pneumatic pressure) is dependent on the size of interacting object applied to the sensing bulb. This means that the sensing bulb will give higher sensation when picking up sharper objects than blunt objects. Furthermore, the sensing bulb has good repeatability, linearity with an error of 2.95± 0.40%, and maximum hysteresis error of 2.39± 0.17% on the sensing bulb. This well exceeds the required sensitivity range of a touch sensor. In summary, the sensing bulb shows potential for use in prosthetic hands. </p>}},
  author       = {{Svensson, Pamela and Antfolk, Christian and Malesevic, Nebojsa and Sebelius, Fredrik}},
  issn         = {{1530-437X}},
  keywords     = {{non-invasive; Pneumatic; sensing glove; sensory feedback; touch sensor}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{9518--9527}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Sensors Journal}},
  title        = {{Characterization of Pneumatic Touch Sensors for a Prosthetic Hand}},
  url          = {{http://dx.doi.org/10.1109/JSEN.2020.2987054}},
  doi          = {{10.1109/JSEN.2020.2987054}},
  volume       = {{20}},
  year         = {{2020}},
}