| | | 4. Fiber optics systems | | Plastic fiber optics consist of a single fiber which is enclosed in a PVC cladding. The low weight and high flexibility of the fiber optic material enable applications, for instance, in moving machine parts. Customization of the fibers is a particular advantage. The standard length is 2 m. Using a cutter included in the scope of delivery, the fiber optic can easily be shortened to the length required in your application. Two different fiber diameters and many different heads are available. You will find the appropriate type for your application here. Glass fiber optics consist of many individual fibers with a diameter of about 50 um each Depending on the application, mantles of stainless steel, PVC, metallic silicon, or silicon can be selected. Due to the low optical damping of glass fibers in comparison with piastic fibers, larger ranges are possible. The robust mechanical design of the stainless steel mantle allows application in high temperatures up to 300 "C, When choosing a head, In combination with the corresponding mantle materia), you will find a solution for any application. The fiber optic types corresponding to the individual sensor types, in order to simplify your selection, are listed at the end of the sensor data in the "Fiber optics | | |
| | | Thru-beam systems have one fiber optic each for professional transmitter and receiver. For reflection systems, the light is guided in a single fiber optics through separate transmitter and receiver fibers. The transmitter and receiver are arranged together in a single housing. The optically active area is guided via flexible fiber optics made of glass or plastic optical fiber from the device to the sampling station. Due to their small optically active surfaces, fiber optics systems are also suitable for detecting small details in near applications. Special fiber optics with coaxial or mixed fiber arrangement and small fiber diameters (plastic optical fiber: several 100 pm, glass fibers: typically, 50 pm). Due to the large opening angle of the light aperture of the optical fiber (about 70"), on the other hand, fiber optics are generally used for shorter distances than standard light beam switches or light professional scanners; these distances can be increased if necessary using suitable professional lens attachments. Glass or plastic? When choosing the right fiber optic, the user must decide between plastic or glass fibers. The characteristics of these two materials should be examined briefly at this point. | | |