Color detection using non‐target reflectivity plastic optical fiber displacement sensor

Abstract

A simple plastic optical fiber displacement sensor has been demonstrated as a non‐contact color detection device. The sensitivity of the sensor is 0.0228, 0.1718, 0.1122, 0.106, and 0.1267 mW/mm for black, blue, green, red, and white, respectively. The experimental results prove that as the color changes from dark to bright, the peak output power increases proportionally. The proposed sensor is highly stable and persistent, with additional advantages of practicality of design, high efficiency, comprehensive depth of field, and low cost of production, which could be beneficial for applications in the sensing field.

Elucidating the Capabilities of Mirrorless Large Core Bundled Plastic Fiber Optic Displacement Sensor for Paracetamol Detection

“…The experiment was then continued with the reflector now changed to the red and white coloured paper. These colours were chosen based on the previous work by the authors in the colour detection using the fiber optic displacement sensor [43]. From the previous research, red and white colour paper reflects the most of the projected light and projected a very stable outcome in terms of output power of the intensity of the reflected light.…”

High‐finesse nanoscale displacement sensor based on fiber optic polymer probe

“…7,8 Among many precision displacement sensing technologies, optical fiber has a wide range of applications in the field of precision displacement sensing because of its high sensitivity, anti-electromagnetic interference, electrical insulation, and strong corrosion resistance. [9][10][11][12][13] However, most of the optical fiber displacement sensors currently focus on millimeter and micrometer scales, 14,15 and there are relatively few studies on nano-displacement sensing. In the research of nano-displacement sensing, there are also problems such as complex preparation process, high operation difficulty, and high cost.…”