| 摘要 |
A microwave spectrometer includes means for sweeping an unknown sample and a standard sample with a microwave signal in a given bandwidth. The absorption spectrum of all the components, i.e., gases in the atmosphere, in the unknown sample which interact with the microwave signal and the absorption spectrum of the standard sample component, i.e., a pollutant gas which also interacts with the microwave signal are derived therefrom, the standard sample component comprising that component being analyzed in the unknown sample. The two derived absorption spectrum signals are cross-correlated for deriving a signal manifesting the amount of the component being analyzed, i.e., the pollutant, in the unknown sample.
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