trennschaukel apparatus

trennschaukel apparatus

[′tren‚shau̇·kəl ‚ap·ə‚rad·əs]
(engineering)
An instrument for determining the thermal diffusion factors of gases and gas mixtures, consisting of 20 suitably interconnected tubes whose top ends are maintained at the same temperature and whose bottom ends are maintained at the same temperature, with the temperature of the top ends greater than that of the bottom ends.