Next Article in Journal
Efficient Data Collection in Widely Distributed Wireless Sensor Networks with Time Window and Precedence Constraints
Next Article in Special Issue
Fully Printed Flexible Single-Chip RFID Tag with Light Detection Capabilities
Previous Article in Journal
A Sensor Data Fusion System Based on k-Nearest Neighbor Pattern Classification for Structural Health Monitoring Applications
Previous Article in Special Issue
A Fully Transparent Flexible Sensor for Cryogenic Temperatures Based on High Strength Metallurgical Graphene
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(2), 420;

A Soft Sensor-Based Three-Dimensional (3-D) Finger Motion Measurement System

Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
Author to whom correspondence should be addressed.
Academic Editors: Hyun-Joong Chung and Tae-il Kim
Received: 20 December 2016 / Revised: 30 January 2017 / Accepted: 10 February 2017 / Published: 22 February 2017
(This article belongs to the Special Issue Flexible Electronics and Sensors)
Full-Text   |   PDF [10194 KB, uploaded 22 February 2017]   |  


In this study, a soft sensor-based three-dimensional (3-D) finger motion measurement system is proposed. The sensors, made of the soft material Ecoflex, comprise embedded microchannels filled with a conductive liquid metal (EGaln). The superior elasticity, light weight, and sensitivity of soft sensors allows them to be embedded in environments in which conventional sensors cannot. Complicated finger joints, such as the carpometacarpal (CMC) joint of the thumb are modeled to specify the location of the sensors. Algorithms to decouple the signals from soft sensors are proposed to extract the pure flexion, extension, abduction, and adduction joint angles. The performance of the proposed system and algorithms are verified by comparison with a camera-based motion capture system. View Full-Text
Keywords: soft sensor; wearable sensor; finger motion measurement; finger joint modeling soft sensor; wearable sensor; finger motion measurement; finger joint modeling

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Park, W.; Ro, K.; Kim, S.; Bae, J. A Soft Sensor-Based Three-Dimensional (3-D) Finger Motion Measurement System. Sensors 2017, 17, 420.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top