NM01TAB47014x14
The (Likely OKO-NDT) Angle Beam Probe (Single Element) with a 70° Nominal Refracted Angle is a specialized ultrasonic transducer designed for highly angled beam inspections in non-destructive testing (NDT). Operating at a center frequency of 4.0 MHz, this probe offers a balance of resolution and penetration suitable for a variety of materials and defect types. Its defining characteristic is the 70-degree nominal refracted shear wave angle achieved within the test material (typically steel) when used in conjunction with an appropriately designed angle beam wedge. This very shallow angle relative to the inspection surface makes it particularly adept at detecting specific types of discontinuities and for employing certain advanced inspection techniques.
The active piezoelectric element of this transducer measures 14 x 14 mm, a size that contributes to the formation and propagation of the ultrasonic beam, influencing its focusing properties and sensitivity. Equipped with a standard Lemo 00 connector, the probe ensures secure and reliable connectivity to a wide range of ultrasonic flaw detectors and data acquisition systems commonly used in NDT.
While the manufacturer isn't explicitly stated in your prompt, the consistent pattern suggests this is likely another high-quality transducer from OKO-NDT, a known and respected supplier of NDT equipment. The 70-degree refracted angle makes this probe particularly valuable for applications such as:
Highly sensitive detection of near-surface defects: The shallow angle maximizes the reflection of ultrasonic energy from flaws located just beneath the material's surface, including tight cracks, surface breaking defects, and shallow inclusions.
Detection of laminations and delaminations: In layered materials or components with potential for planar discontinuities parallel to the surface, this shallow angle can provide excellent sensitivity.
Implementation of "skip" or "half-skip" techniques: The steep angle allows the ultrasonic beam to reflect off the back wall of the test piece, enabling inspection of areas that might be geometrically challenging to access with direct beam paths. This is particularly useful for inspecting welds from one side or for examining specific zones within a component.
Specialized weld inspections: Certain weld joint configurations or anticipated defect orientations may necessitate the use of a 70-degree angle for optimal detection probability.
Crucial Note: As with all angle beam probes, the use of a dedicated angle beam wedge is essential to introduce the ultrasonic beam into the material at the intended 70-degree refracted angle. This wedge (not included with the probe) must be selected based on the material being inspected and the desired refracted angle. The acoustic properties and geometry of the wedge are critical for effective coupling of the ultrasonic energy.
In summary, the (Likely OKO-NDT) Angle Beam Probe (Single Element), operating at 4.0 MHz with a 70° nominal refracted angle and featuring a 14 x 14 mm element and Lemo 00 connector, is a specialized and highly effective tool for specific ultrasonic testing scenarios. Its shallow angle provides unique capabilities for near-surface flaw detection, lamination assessment, and advanced inspection techniques like skip scanning, making it a valuable addition to a comprehensive set of UT probes.