Ultrasonic probe.

摘要

The present invention provides an ultrasonic probe having an intermediate medium made of a total aromatic polyimide resin produced through polycondensation of biphenly tetracarboxylic acid dianhydride and aromatic diamine, said intermediate medium being a wedge member, lens, contact shoe or delay member which is especially excellent in signal to noise ratio. The ultrasonic probe can be used to detect any flaw in an object stably, accurately and efficiently.