Bender Bar Transducer With at Least Three Resonance Modes

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.

主权项

1. An acoustic transducer, comprising:
a substrate element; a first piezoelectric element coupled to a first side of the substrate element, the first piezoelectric element comprising a first portion having a set of electrodes and a second portion having a set of electrodes; and a second piezoelectric element coupled to a second side of the substrate element, the second piezoelectric element comprising a first portion having a set of electrodes and a second portion having a set of electrodes.