Active and passive configurations of a fiber optic probe comprising of a linear array of optical fibers positioned in the front focal plane of a graded index microlens are assessed for use as convenient particle sizing sensors for a process control environment.
Harbans S. Dhadwal
"Multiple fiber optic probe for several sensing applications", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); doi: 10.1117/12.2321925; https://doi.org/10.1117/12.2321925
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Harbans S. Dhadwal, "Multiple fiber optic probe for several sensing applications," Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991);