Zhang J, Hughes W J, Meyer R J, Uchino K, Newnham R E
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA.
Ultrasonics. 2000 Jan;37(8):523-9. doi: 10.1016/s0041-624x(99)00111-0.
A prototype 3 x 3 planar cymbal transducer array was built and tested. The array has a radiating area of 5.5 cm x 5.5 cm and a thickness of less than 8 mm. The measured transmitting voltage response was above 134 dB re 1 microPa/V @ 1 m and flat over the frequency range of 16 and 100 kHz. Array interaction was analyzed using an equivalent circuit model. The array interaction leads to variations in radiation resistance and velocity of the transducers in the array according to their surroundings in the array. The effect is enhanced overall efficiency and a flat response.
构建并测试了一个原型3×3平面钹式换能器阵列。该阵列的辐射面积为5.5厘米×5.5厘米，厚度小于8毫米。在1米处测得的发射电压响应高于134分贝（相对于1微帕/伏），在16至100千赫的频率范围内呈平坦响应。使用等效电路模型分析了阵列相互作用。阵列相互作用会导致阵列中换能器的辐射电阻和速度根据其在阵列中的周围环境而变化。这种效应提高了整体效率并使响应平坦。
