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US 4,058,000 AGranted
Ultrasonic immersion type testing
AssigneeMannesmann Aktiengesellschaft
InventorsKarl Ries, Kurt Hannoschock, Gunter Simoneit
Life of this patent
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Abstract
The entrance angle of an ultrasonic beam into a test object results from refraction at the interface thereof with water. The physical orientation of the transducer directing a beam towards the object is maintained, but the refraction angle is varied through controlled adjustment of the water temperature.
Claims2
In a method of inspecting test objects for detecting defects by means of ultrasonics using the immersion test method, wherein a transducer directs a beam of ultrasonic waves towards the test object through water, the improvement comprising:
- the step of adjusting the temperature of the water for a fixed orientation of said transducer relative to the test object, to change the refraction angle of the beam into the test object.
Dependencies are inferred from the claim text.