2020
DOI: 10.1109/jsen.2020.3006316
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An Inductive Force Sensor for In-Shoe Plantar Normal and Shear Load Measurement

Abstract: Diabetic foot ulcers (DFUs) are a severe global public health issue. Plantar normal and shear load are believed to play an important role in the development of foot ulcers and could be a valuable indicator to improve assessment of DFUs. However, despite their promise, plantar load measurements currently have limited clinical application, primarily due to the lack of reliable measurement techniques particularly for shear load measurements. In this paper we report on the design and evaluation of a novel tri-axis… Show more

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Cited by 28 publications
(32 citation statements)
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“…A regular hexagonal pattern (0.75 mm height, width and separation) was applied to the surface of the grasper as this provides isometric frictional properties, which can easily be varied through altering the pattern density [21], [22]. To monitor the relative displacement of the islands tri-axis SITS sensors were selected due to their thin form factor, and the ability to tune their resolution to suite the desired application [23], [24]. These utilise the eddy current effect to detect the movement of a conductive target over a set of sensing coils.…”
Section: B System Design and Fabricationmentioning
confidence: 99%
See 1 more Smart Citation
“…A regular hexagonal pattern (0.75 mm height, width and separation) was applied to the surface of the grasper as this provides isometric frictional properties, which can easily be varied through altering the pattern density [21], [22]. To monitor the relative displacement of the islands tri-axis SITS sensors were selected due to their thin form factor, and the ability to tune their resolution to suite the desired application [23], [24]. These utilise the eddy current effect to detect the movement of a conductive target over a set of sensing coils.…”
Section: B System Design and Fabricationmentioning
confidence: 99%
“…To measure their change in inductance a four channel inductance to digital converter chip was used (LDC1614, Texas Instruments). For more information on the design and operation of these sensors see [23], [24]. The sensors were monitored and controlled via a microcontroller (Teensy 3.6, PJRC) using the I 2 C serial protocol.…”
Section: B System Design and Fabricationmentioning
confidence: 99%
“…Two-layer feed-forward networks were trained, with ten neurons in the hidden layer and an inverse tangent activation function. The network training specification was chosen to mirror our other works on soft tactile sensing [34].…”
Section: 𝒅 = 𝑓 2 (𝑩)mentioning
confidence: 99%
“…The widely used materials for the top layer are metals and alloys with high electrical conductivity, for example, aluminum foil [ 77 ] and mild steel. [ 78 ] In some recent studies, conductive liquid is utilized to improve the sensor flexibility.…”
Section: Insole Pressure Sensor Constructionsmentioning
confidence: 99%