Multiplexed Oil Level Meter Using a Thin Core Fiber Cladding Mode Exciter
Date of Original Version
This letter reports a multiplexed optical oil level meter using a thin core fiber (TCF) cladding mode exciter. Weak cladding mode reflection (<-75 dB) was employed to probe external refractive index discontinuity at an air-oil boundary. The insertion loss of one sensor is <3 dB. A linear relationship was evaluated between the measurement position and the absolute position during the oil-level test. System-level multiplexing capability was demonstrated and no crosstalk was found between the sensors. The system accuracy was 0.16 mm.
IEEE Photonics Technology Letters
Chen, Zhen, Gerald Hefferman, and Tao Wei. "Multiplexed Oil Level Meter Using a Thin Core Fiber Cladding Mode Exciter." IEEE Photonics Technology Letters 27, 21 (2015): 2215-2218. doi:10.1109/LPT.2015.2457295.