An FBG-based sensing glove to measure dynamic finger flexure with an angular resolution of 0.1� up to speeds of 80�/s

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dc.contributor.author Jha, Chandan Kumar
dc.contributor.author Agarwal, Shivang
dc.contributor.author Chakraborty, Arup Lal
dc.contributor.author Shirpurkar, Chinmay
dc.date.accessioned 2019-06-19T11:12:56Z
dc.date.available 2019-06-19T11:12:56Z
dc.date.issued 2019-06
dc.identifier.citation Jha, Chandan Kumar; Agarwal, Shivang; Chakraborty, Arup Lal and Shirpurkar, Chinmay, "An FBG-based sensing glove to measure dynamic finger flexure with an angular resolution of 0.1� up to speeds of 80�/s", Journal of Lightwave Technology, DOI: 10.1109/JLT.2019.2919496, Jun. 2019. en_US
dc.identifier.issn 0733-8724
dc.identifier.issn 1558-2213
dc.identifier.uri https://doi.org/10.1109/JLT.2019.2919496
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/4521
dc.description.abstract We demonstrate a fiber Bragg grating (FBG) sensor-based highly accurate instrumented glove that can measure finger flexure with an angular resolution of 0.1�. The sensing unit consists of an FBG that is very sensitive to axial strain induced by the flexing of fingers. The spectral shift of the reflection spectrum of the FBG varies linearly with the joint rotation angle. The sensor offers a very high angular resolution of 0.1� with a very high sensitivity of 18.45 pm/degree. The accuracy evaluated using a mechanical setup and the human hand is 0.13� and 0.67� respectively. This is much better than many other reported sensors. The sensor showed excellent repeatability with a maximum standard deviation of 0.30� and 0.79� on a mechanical setup and the human hand respectively. The results are validated using a pre-calibrated inertial measurement unit (IMU) sensor. The sensor also exhibited much better dynamic response compared to the IMU up to a rotation speed of 80�/s. These results demonstrate that our sensor is a strong potential candidate for the development of high-accuracy instrumented gloves that could be used to monitor the progress in the rehabilitation of stroke survivors. This work focuses on the careful characterization of the sensor to establish it as a sensitive and practical approach. The accuracy, repeatability and dynamic response were evaluated using a motorized mechanical model of a finger joint and also on the hands of two human subjects.
dc.description.statementofresponsibility by Chandan Kumar Jha, Shivang Agarwal, Arup Lal Chakraborty and Chinmay Shirpurkar
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Fiber gratings en_US
dc.subject Strain en_US
dc.subject Springs en_US
dc.subject Optical sensors en_US
dc.subject Frequency measurement en_US
dc.title An FBG-based sensing glove to measure dynamic finger flexure with an angular resolution of 0.1� up to speeds of 80�/s en_US
dc.type Article en_US
dc.relation.journal Journal of Lightwave Technology


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