This method offers longer sensing distances and is largely immune to the target's color or surface characteristics, providing higher precision and reliability for position verification or counting applications. The advantages of choosing fiber optic sensors for proximity detection are compelling. A sensor is a device that measures a physical quantity and converts it into a signal that can be measured by an instrument or read by a. Optical fiber sensors (OFSs) have emerged as essential tools in the monitoring of physical, chemical, and bio-medical parameters in harsh situations due to their high sensitivity, electromagnetic interference (EMI) immunity, and long-term stability.
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