CONTACT Ultrasonic Transducer Selection

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Contact Longitudinal Wave Tests are most frequently used on materials or structural forms which are relatively flat. The transducer is generally hand-directed and scanned over one or more exposed surfaces of the test object.  In some cases, two transducers are applied on opposite faces of test object, as in through-transmission tests. Application examples for contact transducers include thickness gaging, lamination detection (series dependant) and material sound velocity  measurements.

General selection considerations are discussed on the General Information pages. Guidance given in that section along with information presented in the descriptions of each transducer type will help you select the most appropriate transducer for your application.

For longitudinal wave tests where the case of the transducer is in contact with the test specimen, OPTIMA transducers are available in our ALL NEW hardened stainless steel OPTI-GRIP housings.