超声薄膜换能器用于高温无损检测

Uitrasonic Film Transducer Used for NDT under High Temperature

介绍一种新型压电薄膜换能器在400℃以上高温无损检测中的应用。压电薄膜的最大优点是可直接贴在金属工件上,也可贴在曲表面上,毋需大量表面制备,毋需声耦合剂,能实时监测在用高温设备的管壁腐蚀状态,为设备安全运行提供有用数据。

For non-destructive testing at high temperatures over 400℃ a new type of transducer i.e. piezoelectric thin film transducer is utilized.Neither extensive surface preparation nor coupling gel is needed. The films can be deposited directly onto metal components and curved surface,enable to real-timely monitor the corrosion condition of high temperature plant,thus providing useful data for safe operation of plant.