Nicholson N C, McDicken W N, Anderson T
Department of Medical Physics and Medical Engineering, Royal Infirmary, Edinburgh, UK.
Ultrasonics. 1989 Mar;27(2):101-6. doi: 10.1016/0041-624x(89)90021-8.
Experimental results of ultrasound of varying frequency (0.8-5.0 MHz) propagating in cold drawn wires of stainless steel and aluminium ranging in diameter from 0.25 to 1.21 mm are in close agreement with theoretical predictions. This agreement is maintained when the coupling medium between the wire and the ultrasound source is a short distance of water. Similar measurements for brass and copper wires are in less close agreement with theory due, probably, to the effect of greater anisotropy.
频率在0.8 - 5.0兆赫之间的超声波在直径为0.25至1.21毫米的不锈钢和铝冷拉金属丝中传播的实验结果与理论预测高度吻合。当金属丝与超声源之间的耦合介质为一小段水时，这种吻合得以保持。对黄铜和铜丝进行的类似测量与理论的吻合度较低，这可能是由于更大的各向异性效应所致。
