Profile imagery using a flat eddy-current proximity sensor

Fenniri, H.; Moineau, A.; Delaunay, G.

doi:10.1016/0924-4247(94)00839-6

Cited by 15 publications

(6 citation statements)

References 3 publications

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“…Probe coil size and shape had to be optimized bearing in mind that accurate edge imaging was desired. Previous work [10] suggested that flat, pancake coil shapes were better for subcutaneous edge imaging and the current results were in some agreement. As the coil shape flattened more magnetic coupling occurred, easing detectability.…”

Section: Discussionsupporting

confidence: 87%

Remote edge detection of subcutaneous stiffeners

Fenn

Watson

2005

Proceedings of the Institution of Mechanical Engineers, Part B:

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Construction of narrow-gap double skin components requires, at some stage, blind welding from one side. During construction, due to thermal distortion, the hidden stiffeners (spacers or stringers) may move sufficiently far from their designated locations that assembly welds, made from one side, could miss the stringers completely. Thus, a real-time sensor capable of identifying and accurately locating spacer edges beneath the outer skin is required. Outer skin magnetic properties and plate/spacer separation seriously influence the capabilities of the best candidate detecting methods. Initial trials were undertaken using a non-destructive testing (NDT) eddy current method to detect beneath aluminium plate. Probe design and construction concentrated on air-cored absolute coils, on which finite element analysis (FEA) was used to predict electrical response. When the refined detector system was tested on magnetic material (mild steel), it was found to be preferable if a static magnetic field was applied to the plate component. Applied magnetism had a profound effect on coil field penetration and hence detectability (maximum plate thickness rose swiftly from 3mm, unmagnetized, to over 12mm, magnetized). As a sensor, the eddy current detector was shown to be capable of finding subcutaneous edges in both aluminium and mild steel fabrications. What has been developed is a sensor simply requiring computer-controlled movement to allow completely automatic hidden edge finding.

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Section: Discussionsupporting

confidence: 87%

Remote edge detection of subcutaneous stiffeners

Fenn

Watson

2005

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Eddy current sensors are often used in the non-destructive testing of conductive objects. These devices facilitate the examination of surface breakage, subsurface discontinuities [ 128 ], fatigue cracks [ 129 ], material wear-out [ 127 ], and profile imagery [ 130 ]. In general, the most common applications of the eddy current sensor are displacement sensors [ 131 ].…”

Section: Sensor Applicationsmentioning

confidence: 99%

The Boom in 3D-Printed Sensor Technology

Xiao-yue

Guo

et al. 2017

Sensors

272

170

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Future sensing applications will include high-performance features, such as toxin detection, real-time monitoring of physiological events, advanced diagnostics, and connected feedback. However, such multi-functional sensors require advancements in sensitivity, specificity, and throughput with the simultaneous delivery of multiple detection in a short time. Recent advances in 3D printing and electronics have brought us closer to sensors with multiplex advantages, and additive manufacturing approaches offer a new scope for sensor fabrication. To this end, we review the recent advances in 3D-printed cutting-edge sensors. These achievements demonstrate the successful application of 3D-printing technology in sensor fabrication, and the selected studies deeply explore the potential for creating sensors with higher performance. Further development of multi-process 3D printing is expected to expand future sensor utility and availability.

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“…The most simple sensor is the flat coil, which is adequate for, for instance, profile measurements [68]. In this application the object is scanned by moving one or more eddy current sensors over the area of interest.…”

Section: Non-destructive Testing and Materials Characterizationmentioning

confidence: 99%

Inductive and Magnetic Sensors

Regtien

2012

Sensors for Mechatronics

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Profile imagery using a flat eddy-current proximity sensor

Cited by 15 publications

References 3 publications

Remote edge detection of subcutaneous stiffeners

Remote edge detection of subcutaneous stiffeners

The Boom in 3D-Printed Sensor Technology

Inductive and Magnetic Sensors

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