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Optical-fiber-based contactless sensing techniques are used in a wide range of sensing applications in many industries to measure physical parameters such as displacement, torque, strain, and vibration. Due to extremely small diameters, flexibility, and the light weight of optical fibers, these sensors can be employed to provide accurate contactless sensing in areas where space is a major limitation...
This paper describes the design and construction of a miniaturized triaxial force sensor which can be applied inside a magnetic resonance imaging (MRI) machine. The sensing principle of the sensor is based on an optical intensity modulation mechanism that utilizes bent-tip optical fibers to measure the deflection of a compliant platform when exposed to a force. By measuring the deflection of the platform...
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