专利内容由知识产权出版社提供
专利名称：Low loss ultrasound transducers发明人：Benjaman R. Johnson,Zhaoxia Cao,Brian D.
Bernhardt,Kaustubh P. Marathe,Gregory E.Phaneuf,William L. Puskas
申请号：US11634427申请日：20061206
公开号：US20070080609A1公开日：20070412
专利附图：
摘要：An ultrasound transducer is constructed to be under damped at higherovertone frequencies by reducing losses through one or more of the following: even
pressure shaped surfaces on masses, reversed drive to at least one piezoelectric ceramic,an ultrasonically formed metallic bond between the transducer's front mass and theradiating surface, high current carrying strain relieved electrodes, fine grain structuremasses, low internal friction masses and radiating materials, and zero bias stress changedue to temperature variations. Improved methods and construction details for bondingthe higher overtone frequency transducer to quartz are disclosed and include: frontmasses with cross-hatched or concentric circle patterns and invar front masses or an invartransition mass that is bonded to the quartz.
申请人：Benjaman R. Johnson,Zhaoxia Cao,Brian D. Bernhardt,Kaustubh P.Marathe,Gregory E. Phaneuf,William L. Puskas
地址：Jamestown NY US,Jamestown NY US,Jamestown NY US,Jamestown NYUS,Jamestown NY US,New London NH US
国籍：US,US,US,US,US,US
更多信息请下载全文后查看
