Tag: fiber optics
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The General Principle of Fiber Optic-based Sensor
Optical sensors are typically interfaced with an optical unit. This optical component supplies the excitation light, which may be from a monochromatic source such as a diode laser or from a broadband source e.g. quartz-halogen that is filtered to provide a narrow bandwidth of excitation. Typically, two wavelengths of light are employed: one that is…
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Optical Fiber Sensors and their Applications in Medical Field
Introduction The use of optical fiber sensors in medical field is based on their ability to transmit light over great distances with low power loss and the interaction of the light with a measurand system. These sensors are electrically passive and hence immune to electromagnetic disturbances. Optical fibres are geometrically flexible and corrosion resistant. They…