High Temperature Ultrasound Transducers

点击翻译按钮获取中文摘要

The aim of the project is to design, build, test and demonstrate a prototype ultrasoundtransducer that can be used in structural health monitoring, flow measurement and rangefindingapplications in the temperature range 200 to 450°C. Such devices are required by thenuclear, oil & gas, industrial controls and aerospace industries. As currently availablepiezoelectric elements cannot operate beyond 250°C, the prototype will be based on a recentlydeveloped high temperature piezoelectric ceramic proprietary to the company. The projectwill identify acoustic matching and damping layers, compatible with the piezoelectric ceramicand the proposed applications, that can withstand the temperature range of operation and willidentify techniques for making robust electrical connections to the active element. Theprototype will be tested in the context of structural health monitoring and range-findingapplications within the temperature range of interest.