| 摘要 |
A method and apparatus is provided for nondestructive testing and evaluation of wood and wooden structures for insects using microwave radiation. The apparatus includes a microwave generator, a receiver, an antenna for sending and receiving signals, a signal processor for processing the received signals and a display. The detection method includes generating and sending a microwave signal, receiving a reflected signal, and processing and evaluating the received signal. The evaluation method includes sweeping the frequency of the generated signal to determine the maximum received signal, and comparing the maximum received signal to a standard deviation between the maximum received signal and the standard indicates damage and extent of the deviation indicates the extent of the damage. Preferably, the apparatus is hand-held and the method includes moving the apparatus about a structure to be tested.
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