几种换能器在测试槽中的实验分析

通过几种换能器在铝槽和PVC槽中进行的测试与分析,证明了新研制的、用于发射的径向极化换能器可以替代价格昂贵的大直径切向极化换能器.测试结果表明接收换能器的性能对声波信号的后续波有极大的影响.通过对比认为薄壁短圆环接收换能器效果最好,适用于全波列的测井仪器;并提出了改善3700长源距声波测井仪全波列信号的建议.

Analyses of Experiments with Several Transducers in Test Tube

Testing and analyses of acoustic transducers in aluminum tube and PVC tube have proved that the newly developed radial polarized transmitting transducer can replace the former expensive tangential polarized one. Experiments show that performance of acoustic receiver transducer influences on acoustic wavetrain extremely. By contrast, thin shell cylindrical receiving transducer is the best one and suitable to full wavetrain acoustic logging tools. A few of advice on improving full wavetrains in long spaced acousticlog tool of 3700 series has been given.