Contact transducers are single element, longitudinal wave transducers that are designed to be used in direct contact with the part or component being inspected. They are available in multiple styles, including standard, fingertip for difficult-to-access areas, and magnetic hold down for stationary positioning on ferrous materials. All are durable for use in industrial environments and have an acoustic impedance that matches most metals. They are used in many applications such as straight beam flaw detection and thickness gaging, detecting and sizing delaminations, and inspecting plates, billets, bars, and other metallic and nonmetallic components.
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