Microwave resonance system natural frequency calculation method and apparatus for

摘要

PROBLEM TO BE SOLVED: To rapidly and precisely obtain microwave natural frequency by measuring microwave electric field strength when a microwave with specific frequency and amplitude is applied to an object and performing calculation using a specific expression. ;SOLUTION: In a microwave molecular orientation-measuring device 2, a microwave resonance waveguide 4 retains an object 5 that is arranged at a center part so that it can be rotated in R direction within a surface that is vertical to the advancing direction of microwave and applies a microwave being generated by a microwave- generating device 3. A microwave through the object 5 is reflected by reflection plates 7 and 7 for resonating. Then, an electric field strength detection means 8 detects a microwave electric field strength IV when a microwave with a microwave frequency of V and an amplitude of A₀ is applied to the object 5 using a detection element 8a. A natural frequency operation means 10 performs an operation according to an expression based on such data as a length N of the microwave resonance waveguide 4 being inputted from a data-inputting means 12, a microwave amplitude A₀, and a white noise strength H, thus obtaining a microwave natural frequency V_max.;COPYRIGHT: (C)1999,JPO