The Fiber Optic Sensors subcategory within Sensors & Measuring Devices encompasses devices that utilize optical fibers to detect changes in light properties and convert them into measurable signals. These sensors are renowned for their sensitivity, precision, and the ability to operate in challenging environments where traditional electronic sensors might fail. Fiber optic sensors work by transmitting light down a fiber and measuring changes in the light's intensity, phase, wavelength, or polarization caused by external stimuli. This capability makes them ideal for a variety of applications, including structural health monitoring, where they can detect stress or strain in materials; medical diagnostics, where they are used in non-invasive procedures; and in hazardous environments, such as chemical plants or oil fields, where electronic sensors could pose a risk. This subcategory is vital for advanced monitoring systems, offering high reliability, minimal susceptibility to electromagnetic interference, and the ability to provide real-time data over long distances. Fiber optic sensors are crucial in sectors that demand high precision and robustness in their sensing technology.