Abstract: A (e.g., dissolution) testing system has one or more stationary reader units and one or more corresponding rotatable shaft assemblies. Each reader unit has reader circuitry electrically connected to a reader antenna. Each shaft assembly has shaft circuitry electrically connected to a temperature sensor and a shaft antenna. The reader circuitry controls the reader antenna to wirelessly convey electrical energy to the shaft circuitry via the shaft antenna. The shaft circuitry controls the shaft antenna based on temperature measurements from the temperature sensor to wirelessly convey corresponding temperature information to the reader circuitry via the reader antenna. The testing system may employ a Near-Field Communication protocol to convey both the electrical energy and the temperature information.

Abstract: A fiber-optic transmission probe system for, for example, dissolution testing, includes a single probe, a single probe tip, and a number of pathlength adjusters of different lengths. The transmission probe system is usable to assemble different probe assemblies having different, desired optical pathlengths, where each probe assembly has either no pathlength adjuster or a different one of the pathlength adjusters. The probe system avoids the prior-art requirements of having either (i) multiple probes of different, fixed optical pathlengths or (ii) a probe with multiple probe tips of different, fixed lengths to achieve the different, desired optical pathlengths.