The main application of fiber optic sensors is object detection. They can detect the presence or absence, passage, or moving speed of an object in the detection area where light is irradiated. Since fiber sensors detect by shading or reflecting lig. The main application of fiber optic sensors is object detection. They can detect the presence or absence, passage, or moving speed of an object in the detection area where light is irradiated. Since fiber sensors detect by shading or reflecting light, they can detect the presence or absence and color of general solids such as wood and resin as well. Fiber optic sensors are composed of a light emitting part, which consists of a cable-like fiber unit that emits light while passing it through and a fiber amplifierthat has a light source and optical amplification functions, and a light receiving part that receives the light. The optical fiber, which is the core of the fiber unit, consists of a cor. Fiber optic sensors perform various types of detection based on the information (wavelength and light intensity) of light emitted from the light-emitting part and received by the light-receiving part.About Fiber AmplifiersFiber optic sensors generally use LED light, which is carried by an optical fiber to the detection area and illuminated by a lens. The most common problems with fiber sensors is the deterioration of the LED light over time and adhesion of dirt on the lens. When these conditions occur, the light intensity of the irradiated light decreases, causing false detection and leading to equipment trouble, so fiber amplifiers are used. The function of the fiber amplifier is to detect and compensate auto.
