
NM01TSB250
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The OKO-NDT Straight Beam Probe TSB (Single Element), 2.25 MHz, 0.500" with Side MD Connector is a general-purpose ultrasonic transducer used for conventional ultrasonic testing (UT). It is designed to transmit and receive longitudinal waves perpendicularly into the test material, making it ideal for detecting flaws oriented parallel to the inspection surface and for accurate thickness measurement.
Key Features & Benefits:
Straight Beam Inspection (Normal Incidence): This probe is designed for normal beam inspection, meaning the ultrasonic waves are transmitted straight into the material (perpendicular to the surface). This makes it highly effective for detecting defects such as laminations, inclusions, delaminations, porosity, and cracks that are parallel to the scanning surface. It's also excellent for precise thickness gauging.
Single Element Design: Operating in pulse-echo mode, this probe utilizes a single piezoelectric crystal to both transmit and receive ultrasonic waves. This simple yet effective design offers reliable performance and straightforward signal interpretation on a conventional ultrasonic flaw detector.
2.25 MHz Frequency: This frequency provides a good balance between penetration and resolution. It allows for sufficient penetration into common industrial materials like steel, aluminum, and various alloys, while still offering good resolution for detecting a range of flaw sizes. It's a widely used frequency for general-purpose UT.
0.500" (12.7 mm) Element Diameter: The 0.500-inch (12.7 mm) active element provides a balanced acoustic beam profile. This diameter is versatile for general flaw detection and thickness measurement, offering good coverage for scanning while maintaining adequate sensitivity to defects.
Side MD (Microdot) Connector: The probe is equipped with a Microdot (MD) coaxial connector, which is a common and compact connector type in NDT, known for its secure connection and low signal noise. The "Side" orientation of the connector can be advantageous in confined spaces, allowing for better cable routing and reducing strain on the cable during inspection.
Robust Construction: Manufactured by OKO-NDT (part of the OKOndt GROUP), this probe is built with a durable case (often stainless steel or plated brass) and a wear-resistant face. This robust construction ensures longevity and reliable performance in demanding industrial environments.
Wide Compatibility: With its standard Microdot connector, this probe is broadly compatible with most conventional ultrasonic flaw detectors from various manufacturers.
Specifications:
Manufacturer: OKO-NDT (OKOndt GROUP)
Probe Type: Straight Beam Contact Transducer (TSB Single Element Series)
Element Type: Single Element
Frequency: 2.25 MHz
Crystal Diameter: 0.500 inches (12.7 mm)
Connector Type: Microdot (MD)
Connector Position: Side
Housing Material: Typically Stainless Steel or Plated Brass
Wear Face Material: Often Ceramic or durable polymer
Operating Temperature Range: Typical for contact probes (e.g., 0∘C to 50∘C / 32∘F to 122∘F)
Near Field (Calculated): (Approximately 15−25mm in steel, depending on exact crystal properties and damping, can be calculated using N=D2F/(4V), where D=diameter, F=frequency, V=velocity).
Typical Applications:
Thickness Measurement: Accurate gauging of material thickness in plates, pipes, castings, and other components.
Laminar Flaw Detection: Identifying internal discontinuities such as delaminations, inclusions, and porosity in materials.
Corrosion/Erosion Inspection: Assessing wall thinning in tanks, pressure vessels, and pipelines.
Bond Line Inspection: Checking the integrity of adhesive bonds or brazed joints.
General Quality Control: In manufacturing, aerospace, automotive, and general engineering sectors for various materials.