Using fibre-optic sensors and miniature measuring probes, the layer position, drill hole depth and surface quality in MICROVIAS on
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In-fiber interferometric-based sensors are a rapidly growing field, as these sensors exhibit many desirable
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Three primary photoelectric sensor configurations are suited for internal hole inspection: 1. Fiber Optic Sensors:
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The additional difficulty in measuring the in-hole roundness of small boreholes is that most optical and tactile sensors
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Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors
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In contrast with tactile measuring devices, fiber-optic sensors from fionec do not affect or damage the surface of the test specimens.
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An ultracompact optical fiber Fabry–Perot interferometric sensor is proposed and demonstrated for inner diameter
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We developed a system to measure the internal profile of small diameter hole. The minimum measurable diameter is
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Optical fiber sensing refers to the use of optical fibers to measure various parameters such as temperature, strain, and pressure by
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This work reviews the fiber-optic sensors based on Bragg gratings, long period gratings, interferometers, surface
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Since the 1980s, the use of fibre-optic sensors has steadily expanded across a range of applications. The underlying sectors have
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This work presents an expandable fiber optic curvature sensor. The sensor achieves multi-point curvature
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fionec has developed miniaturized probes based on optical fibers. With diameters starting from just 50 µm, they can enter even the
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Since optical non-contact methods are difficult to use for measuring the diameter and form errors of small hole at any cross section, a
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Here, we propose a promising approach to perform highly accurate distance measurements using low-coherence fiber
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Abstract The optical properties of compact in-fiber refractive index (RI) sensor based on a micro-hole created in a
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Fraunhofer IPT develops fiber-optic sensors for challenging measurement tasks such as measuring the
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We present a measurement system that could be used for these kinds of measurements. The system combines a
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Distributed fiber optic sensors (DFOSs) possess the capability to measure strain and temperature variations over long
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A fiber optic sensor for measuring the diameter and from errors of very small hole or blind hoe. with diameter down to 0.2 mm and
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This paper conducts a systematic analysis of the sensing mechanisms in fiber-optic
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