Method and apparatus for detecting leaks in automotive vehicle bodies.

摘要

Seals in an automotive body are inspected for leaks by sensing ultrasonic energy passing through a seal. Either an ultrasonic emitter (28) or a detector (32) is scanned along a seal outside the body by means of a robot (30), with, correspondingly, either a detector or an ultrasonic emitter being located inside the body. The emitter operates at frequencies in a range of 65 to 80 kHz, and repetitively sweeps through a frequency range of 6 kHz. The automotive body may be either open or closed.