Window-type fiber optic sensors are primarily used for counting and inspection tasks in industrial automation, especially in the packaging industry. Fiber optic current sensors are revolutionizing the way electrical currents are measured, providing high sensitivity, immunity to electromagnetic interference (EMI), and the ability to function in harsh environments. These sensors detect products as they pass through a defined sensing window, enabling reliable part counting, presence inspection, and material. A fiber-optic sensor is a sensor that uses optical fiber either as the sensing element ("intrinsic sensors"), or as a means of relaying signals from a remote sensor to the electronics that process the signals ("extrinsic sensors"). Fibers have many uses in remote sensing. The following is a classification example of KEYENCE's fibre units (FU Series). With the continuous advancement of optical fiber micromachining technology, C-type optical fibers have demonstrated significant potential in the field of optical fiber sensing. By partially or completely removing specific regions of the cladding, a “leakage window” is created, enabling interaction.
[PDF Version]