Fig. 4
From: Respiration activity monitoring system for any individual well of a 48-well microtiter plate
CAD drawing side view (a) and schematic bottom view (b) of the optical multiplexer (8 × 48) for measurements of the oxygen partial pressure in each well. Eight oxygen measuring instruments are rotated against 48 fixed optical fibers. The rotation sequence for oxygen partial pressure measurement through all 48 fibers consists of five 7.5° steps and a reversed – 37.5° step. Complete cycle time is roughly 3.5 s. Only the first 5 cm of the optical fibers are shown in (a) for clarity