A device is described which permits the measurement of rotor temperature in the air-driven ultracentrifuge while the machine is in operation at speeds up to 60,000 r.p.m. A Thermistor situated inside the rotor changes its resistance as the temperature changes. Measurement of the Thermistor resistance by means of a Wheatstone bridge is accomplished with the use of needle contacts on the top of the turbine shaft and at the bottom of the rotor. Rotor temperature may be measured to within ±0.02°C and is believed to represent actual temperature of the rotating solution within 0.1°C.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.