SELF REGULATING PTCR HEATER

摘要

SELF REGULATING PTCR HEATER A self regulating ceramic PTCR heater has a pair of spaced interdigitated electrodes on one major surface. Heat transfer means is provided for extracting heat from the opposite major surface of the PTCR. Best heating efficiency is obtained when the thickness of the PTCR is about the same or less than the average spacing between the electrodes.