What Is a Fiber Optic Temperature Sensor?
A Fiber Optic Temperature Sensor is a sensor technology used for temperature detection, employing optical fibers to measure temperature changes.
Optical fibers, which are extremely fine fibers made of glass or plastic, are utilized for transmitting information as optical signals. These optical fibers incorporate a fine reflective structure known as a Bragg grating, causing light to be reflected at a specific wavelength. When the temperature changes, the length of the optical fiber changes, leading to a corresponding shift in the wavelength reflected by the Bragg grating. Utilizing this principle, temperature variations can be measured.
The advantages of fiber optic temperature sensors include their resistance to electromagnetic interference and the capability to measure temperatures remotely from distant locations.