Fiber Optic Sensor Width

The width of fiber optic sensors varies depending on the type of fiber, ranging from 0. 25 mm to 1 mm for plastic fibers and 10 to 100 µm for glass fibers.

Plastic Fiber Optic Sensors

Plastic fibers are the most common type used in fiber optic sensors. The core diameter of plastic fibers typically ranges from 0. 25 mm to 1 mm (0.

01" to 0. 04"), encased in a protective polyethylene sheath. These fibers are lightweight, flexible, and cost-effective, making them suitable for applications in tight spaces or where high flexibility is required.

Glass Fiber Optic Sensors

Glass fibers are used for high-precision or high-temperature applications. The core diameter of glass fibers ranges from 10 µm to 100 µm, often encased in stainless steel tubing to withstand temperatures up to 350°C (662°F),. These fibers are ideal for environments requiring durability and thermal resistance.

Sensor Assembly Width

The overall width of a fiber optic sensor also depends on the sensor type (thru-beam or reflective) and the housing. Reflective sensors may have separate areas for transmitter and receiver, slightly increasing the effective width, while thru-beam sensors consist of a transmitter and receiver pair. In practical applications, the width of the sensor assembly is designed to accommodate the fiber and protective casing while maintaining a compact profile for installation in constrained spaces.

In summary, fiber optic sensor widths range from tens of micrometers for glass fibers to about 1 mm for plastic fibers, with the total sensor assembly width slightly larger depending on the housing and configuration.