NM01MMA445
The Sonatest Medium Angle Beam Shearwave Probe is a single-element ultrasonic transducer designed for angle beam inspection using shear waves. This probe is characterized by its:
Wave Mode: Generates shear waves (S) within the test material. Shear waves are particularly effective at detecting flaws that are not oriented parallel to the inspection surface, such as vertical cracks or lack of fusion in welds.
Refracted Angle: Produces a nominal refracted angle of 45 degrees when the ultrasonic beam enters a steel material. This specific angle is a common choice for many angle beam inspection applications.
Center Frequency: Operates at a center frequency of 4 MHz. This frequency range offers a good balance between the ability of the sound wave to penetrate the material and the resolution (the ability to detect small flaws). Higher frequencies generally provide better resolution but less penetration, while lower frequencies offer greater penetration at the cost of resolution.
Connector Type: Features a Lemo 00 connector, a widely used and reliable type of coaxial connector common in ultrasonic testing equipment. This ensures a secure and consistent electrical connection to the flaw detector or ultrasonic instrument.
Crystal Size: Has a piezoelectric crystal with dimensions of 14 mm x 16 mm. The size and shape of the crystal influence the ultrasonic beam's characteristics, such as its width and focusing properties, ultimately affecting the probe's sensitivity and coverage area. This rectangular crystal is a common configuration for angle beam probes.
Manufacturer: Manufactured by Sonatest, a well-established and reputable global leader in the design and manufacture of ultrasonic NDT equipment and probes. This ensures a high level of quality and reliability.
Damping: Typically features medium damping. The damping characteristic of a probe affects its bandwidth (the range of frequencies it effectively transmits and receives) and its pulse length. Medium damping provides a good compromise between sensitivity (the ability to detect weak signals) and resolution (the ability to distinguish between closely spaced reflectors).
Applications: This type of probe is commonly employed for a wide range of applications, including:
Weld inspection: Detecting defects like cracks, lack of fusion, and porosity in welded joints.
Inspection of machined parts: Identifying flaws in critical components.
Testing of tubes and pipes: Detecting longitudinal or circumferential cracks and wall thickness variations.
Inspection of castings and forgings: Locating internal discontinuities such as cracks, voids, and inclusions.