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Direct Measurement of Elbow Joint Angle Using Galvanic Couple System
Chen, Xi Mei1; Barma, Shovan2; Pun, Sio Hang1; Vai, Mang I.1; Mak, Peng Un3
2017-04
Source PublicationIEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
ISSN0018-9456
Volume66Issue:4Pages:757-766
Abstract

This paper proposes a simple approach to measure the elbow joint angle (EJA) using galvanic coupling system (GCS), directly; whereas, the traditional methods involved in either complex machine-learning task or arm movement models in which the consideration of model parameters are not accurate very often. First, a correlation between the EJA and GCS data has been established by defining a polynomial function based on a simple six-impedance model of human upper arm, where the EJA (theta) has been achieved by moving the forearm along the sagittal and transverse planes with different loads (empty hand, 1 and 2 kg). The coefficients of the polynomial are estimated based on the polynomial fit technique in which the actual angles (reference frame) are calculated by using motion data. In total, eleven subjects (seven males and four females) with the age of 30 +/- 6 years have been considered during the experiment. However, the GCS data of eight subjects are used to derive the correlation, exclusively. Furthermore, the influence of muscle fatigue and different loads on the derived correlation has been studied. Next, based on the derived correlation, the EJA has been measured in two parts-inside and outside tests by considering six subjects. The results show that the proposed idea can measure the EJA very effectively with error up to +/- 0.11 rad (6 degrees). Moreover, in a performance comparison, the proposed approach shows its compatibility by indicating low complexity, higher accuracy, and easy to measure.

KeywordForearm Movement Galvanic Coupling System (Gcs) Measurement Of Elbow Joint Angle (Eja) Upper Arm Muscle
DOIhttp://doi.org/10.1109/TIM.2017.2654138
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Instruments & Instrumentation
WOS SubjectEngineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000396397900018
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The Source to ArticleWOS
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被引频次[WOS]:1   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau, China
2.Department of Electronics and Communication Engineering, Indian Institute of Information Technology, Guwahati, India
3.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, China
First Author AffilicationUniversity of Macau
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Chen, Xi Mei,Barma, Shovan,Pun, Sio Hang,et al. Direct Measurement of Elbow Joint Angle Using Galvanic Couple System[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2017,66(4):757-766.
APA Chen, Xi Mei,Barma, Shovan,Pun, Sio Hang,Vai, Mang I.,&Mak, Peng Un.(2017).Direct Measurement of Elbow Joint Angle Using Galvanic Couple System.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,66(4),757-766.
MLA Chen, Xi Mei,et al."Direct Measurement of Elbow Joint Angle Using Galvanic Couple System".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 66.4(2017):757-766.
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