Table of Contents
What is straight beam transducer?
Straight Beam Transducers – Single Element. Typically used for manual inspections, straight beam single element probes are ideal for scanning parts with regular geometry and relatively smooth contact surfaces.
What is contact transducer?
Contact transducers are used for direct contact inspections, and are generally hand manipulated. They have elements that are protected in a rugged casing to withstand sliding contact with a variety of materials. These transducers have an ergonomic design so that they are easy to grip and move along a surface.
What is straight beam?
Straight beam testing is generally employed to find cracks or delaminations parallel to the surface of a test piece, as well as voids and porosity. It may use contact, delay line, dual element, or immersion transducers, all of which launch longitudinal waves on a straight path into the test piece.
What is straight beam UT?
Straight beam ultrasonic transducers are longitudinal wave transducers designed for general purpose ultrasonic inspection where test materials are relatively flat and smooth.
What is an immersion transducer?
Immersion transducers are specifically designed to transmit ultrasound in applications where the test parts are partially or wholly immersed in water, which allows a uniform and fast coupling technique for rapid scanning of parts.
What is an angle beam used for?
Angle beam ultrasonic units are used for nondestructive testing (NDT) of solid objects, such as metal pipes. They are especially useful for detecting flaws in and around welding areas, such as pores, small cracks, lack of fusion, etc.
What is focused transducer?
A focused transducer can improve the sensitivity and axial resolution by concentrating the sound energy to a smaller area. Immersion transducers are typically used inside a water tank or as part of a squirter or bubbler system in scanning applications.
What is a dual element transducer?
A dual element transducer consists of two crystal elements housed in the same case, separated by an acoustic barrier. One element transmits longitudinal waves, and the other element acts as a receiver.
What is Curve beam?
In short, we can say that a Curve beam is a beam that is covered by circular arcs in every direction. The curved beam can be further divided into two parts: Beam with small initial curvature. Beam with large initial curvature.
What is a straight beam transducer used for?
Typically used for manual inspections, straight beam single element transducers are ideal for scanning parts with regular geometry and relatively smooth contact surfaces. This includes flat or curved surfaces where you need to identify flaws or a backwall parallel to the surface or detect with a beam normal to the surface.
What is a contact transducer?
A contact transducer is a single element longitudinal wave transducer intended for use in direct contact with a test piece.
What is the difference between a beam probe and transducer?
Angle beam probes are preferred for parts with inclined flaws, such as welds, and are sometimes used in mechanized or automated testing. They use refraction to transmit shear or longitudinal waves at a predetermined angle, while most standard transducers generate shear waves by mode conversion.