Performance Analysis of a Noncontact Plastic Fiber Optical Fiber Displacement Sensor with Compensation of Target Reflectivity

Figure 9

𝑆_𝐶(d) functions for all RX fibers in presence of a spatially nonuniform target reflectivity; the chart reports result for a circular spot with radius 2 mm and with reflectivity variation of 1%, 7%, and 45% from the target nominal reflectivity, either facing the TX fiber (spot) or centered 1 mm aside along 𝑥-axis (side spot).