| 摘要 |
A material, such as a fiber composite material, has embedded inside at least one, preferably more, surface acoustic wave filters of piezoelectric material for receiving testing energy in a wireless manner and for retransmitting a material quality signal in a wireless manner which is evaluated in a system that has a wireless transmitter for sending testing energy into a material and a wireless receiver for receiving the material quality signal which is then processed and evaluated by a respective processor of the testing system. An output of the processor provides information regarding the nature and quality of the material tested and of the presence and location of any material faults that may be displayed on display screen.
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