标题：Measurement of change in Capacitance with Temperature, using unprocessed Indian Bee wax and its use as a Temperature sensor with IC 555 timer circuit.
摘要：Beeswax is naturally found material used by bees to built bee nest. It is made up of mixture of esters of fatty acids and fatty alcohols, paraffinic hydrocarbons and free fatty acids. It also shows change in resistivity due to change in temperature and having melting point of 62-63 degree Celsius. In this research paper beeswax is used as medium between two parallel plates forming the system of capacitor. This capacitor is used in IC 555 timer Astable- Multivibrator circuit. The output is Square wave having period proportional to Capacitance if resistance of resistors is kept constant. It was observed that period of output square wave was directly proportional to temperature and the response is almost linear up to 55 degree Celsius but there after increases rapidly as temperature approaches to 62 degree Celsius. It was worth noting that if experiment is repeated the values are found to be same, which indicates that there is repeatability observed.
