Method and device for measuring inside temperature based on microwave using multiple frequency of multi-channel

摘要

PURPOSE: A method and apparatus for measuring inside temperature based on microwaves using a multi-frequency in a multi-channel are provided to easily and exactly measure inner temperature by measuring inner temperature with values of a multi-frequency band entering through a multi-channel. CONSTITUTION: An antenna(100) receives a microwave signal emitting from a medium. A signal processing unit(200) detects a received microwave signal with a dual tone multi-frequency band of a multi-channel and eliminates noises. A temperature measuring unit(300) produces absolute temperature of a heating source from the dual tone multi-frequency.