Fig. 1. The microcoil geometry, showing the 1-mm-diameter ruby sphere that is attached to a fiberoptic cable for pressure measurements and calibration. (A): Solenoid and ruby before a solution sample has been placed in the 10–15 lL PEEK tubing container, and before trimming, with no Stycast added to seal the berylliumcopper feedthrough. The coil length is 3.4 mm and the coil diameter is 2.7 mm. (B): The solenoid ready for an experiment. The sample is sealed into the tubing and the assembly is sealed with Stycast mixed with Al2O3 powder.
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