| 摘要 |
An apparatus and method for analysing an amount of at least one component in a sample ( 21 ) by measuring a microwave signal ( 13 ) that has passed at least partially through the sample ( 21 ), the apparatus comprising: a microwave generator that generates a continuous linear sweeping microwave signal varying in frequency, a microwave transmitter ( 11 ), a microwave receiver ( 12 ), at least one microwave analyser that analyses phase shift and/or change in amplitude of a transmitted and received signal ( 13 ), a means ( 40 ) for determining a depth of the sample ( 21 ) and a processor that determines the amount of the component(s) in the sample ( 21 ) from the microwave analyser.
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