In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study
This paper presents the design and evaluation of an in-socket sensory system for a transfemoral prosthetic leg using a set of piezoelectric sensors. The design process includes identifying the optimal mounting configuration of the sensors and determining their best placement. Two experiments we...
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| Language: | English English English |
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IEEE
2016
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| Online Access: | http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/1/J-2016-IEEE-ASME%20MCT-In%20socket%20sensory%20system-Farah-published.pdf http://irep.iium.edu.my/53928/7/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_SCOPUS.pdf http://irep.iium.edu.my/53928/8/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_WOS.pdf |
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iium-539282017-07-18T00:45:26Z http://irep.iium.edu.my/53928/ In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study Jasni, Farahiyah Hamzaid, Nur Azah Asan Gani, Abdul Muthalif zakaria, Zafirah Shasmin, Hanie Nadia Cheok, Ng Siew TJ Mechanical engineering and machinery This paper presents the design and evaluation of an in-socket sensory system for a transfemoral prosthetic leg using a set of piezoelectric sensors. The design process includes identifying the optimal mounting configuration of the sensors and determining their best placement. Two experiments were performed separately to address each objective. Results of the experiment suggested that cushionall with fit size cantilever with elastic foundation should be adopted to mount the sensors on the socket’s wall. As for the placement of the sensors, the result suggested that the sensors should be positioned in zig-zag orientation from top to bottom, which can cover all of the most active area on the quadriceps and hamstring muscle groups. With the identified design, the socket was fabricated and instrumented for a transfemoral amputee and the performance of the in-socket sensory system was evaluated. The amputee performed level walking at normal speed on a 5-m straight pathway multiple times while the output voltage signal from each sensor was recorded. The output signals consistency was assessed by calculating the cross correlation, r, within five trials. In order to measure the strength of the correlation matrix of each sensor, the Frobenius norm, ||A||F was calculated. The high norm value for all sensors pattern (||A||F >4.5) for quadriceps implies that the mounting and placement of the sensors is most suitable for a consistent and reliable signal. For Hamstring, results inferred that except for the two sensors located on the top most position and the most bottom sensor, the other sensors showed good performance (||A||F >4.4). Thus, the proposed design of the in-socket sensory system using piezo sensors was proven to be effective for a transfemoral prosthetic leg. IEEE 2016-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/53928/1/J-2016-IEEE-ASME%20MCT-In%20socket%20sensory%20system-Farah-published.pdf application/pdf en http://irep.iium.edu.my/53928/7/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/53928/8/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_WOS.pdf Jasni, Farahiyah and Hamzaid, Nur Azah and Asan Gani, Abdul Muthalif and zakaria, Zafirah and Shasmin, Hanie Nadia and Cheok, Ng Siew (2016) In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study. IEEE/ASME Transactions on Mechatronics, 21 (5). pp. 2466-2467. ISSN 1083-4435 E-ISSN 1941-014X http://ieeexplore.ieee.org/document/7487057/ 10.1109/TMECH.2016.2578679 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
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Online Access |
| language |
English English English |
| topic |
TJ Mechanical engineering and machinery |
| spellingShingle |
TJ Mechanical engineering and machinery Jasni, Farahiyah Hamzaid, Nur Azah Asan Gani, Abdul Muthalif zakaria, Zafirah Shasmin, Hanie Nadia Cheok, Ng Siew In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| description |
This paper presents the design and evaluation
of an in-socket sensory system for a transfemoral prosthetic
leg using a set of piezoelectric sensors. The design process
includes identifying the optimal mounting configuration
of the sensors and determining their best placement. Two
experiments were performed separately to address each objective.
Results of the experiment suggested that cushionall
with fit size cantilever with elastic foundation should be
adopted to mount the sensors on the socket’s wall. As for
the placement of the sensors, the result suggested that the
sensors should be positioned in zig-zag orientation from
top to bottom, which can cover all of the most active area
on the quadriceps and hamstring muscle groups. With the
identified design, the socket was fabricated and instrumented
for a transfemoral amputee and the performance of
the in-socket sensory system was evaluated. The amputee
performed level walking at normal speed on a 5-m straight
pathway multiple times while the output voltage signal from
each sensor was recorded. The output signals consistency
was assessed by calculating the cross correlation, r, within
five trials. In order to measure the strength of the correlation
matrix of each sensor, the Frobenius norm, ||A||F
was calculated. The high norm value for all sensors pattern
(||A||F >4.5) for quadriceps implies that the mounting and
placement of the sensors is most suitable for a consistent
and reliable signal. For Hamstring, results inferred that
except for the two sensors located on the top most position
and the most bottom sensor, the other sensors showed
good performance (||A||F >4.4). Thus, the proposed design
of the in-socket sensory system using piezo sensors was
proven to be effective for a transfemoral prosthetic leg. |
| format |
Article |
| author |
Jasni, Farahiyah Hamzaid, Nur Azah Asan Gani, Abdul Muthalif zakaria, Zafirah Shasmin, Hanie Nadia Cheok, Ng Siew |
| author_facet |
Jasni, Farahiyah Hamzaid, Nur Azah Asan Gani, Abdul Muthalif zakaria, Zafirah Shasmin, Hanie Nadia Cheok, Ng Siew |
| author_sort |
Jasni, Farahiyah |
| title |
In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| title_short |
In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| title_full |
In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| title_fullStr |
In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| title_full_unstemmed |
In-socket sensory system for transfemoral amputees using piezoelectric sensors: An efficacy study |
| title_sort |
in-socket sensory system for transfemoral amputees using piezoelectric sensors: an efficacy study |
| publisher |
IEEE |
| publishDate |
2016 |
| url |
http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/ http://irep.iium.edu.my/53928/1/J-2016-IEEE-ASME%20MCT-In%20socket%20sensory%20system-Farah-published.pdf http://irep.iium.edu.my/53928/7/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_SCOPUS.pdf http://irep.iium.edu.my/53928/8/53928-In-Socket%20Sensory%20System%20for%20Transfemoral%20Amputees%20Using%20Piezoelectric%20Sensors_WOS.pdf |
| first_indexed |
2023-09-18T21:16:17Z |
| last_indexed |
2023-09-18T21:16:17Z |
| _version_ |
1777411584186908672 |