具有至少三个谐振模式的弯曲杆换能器(英文)  

BENDER BAR TRANSDUCER WITH AT LEAST THREE RESONANCE MODES

出　　处：《国外测井技术》2018年第6期29-29,共1页World Well Logging Technology

摘　　要：A bender bar acoustic transducer capable of exciting at least three resonance modes is provided.The provided bender bar acoustic transducer may be capable of exciting a second resonance mode by configuring a first portion of a piezoelectric element to contract while a second portion of the piezoelectric element expands when voltage is applied to electrodes coupled to the piezoelectric element.The bender bar acoustic transducer may be further configured such that the first portion and the second portion of the piezoelectric element both contract and/or expand to excite a first resonance mode.The bender bar acoustic transducer may be used in downhole and well logging applications.

关 键 词：TRANSDUCER 申请日 capable 换能器 EXCITING 专利权 谐振 piezoelectric portion 专利号 

分 类 号：TE[石油与天然气工程]