NM01T0023200

These high-performance ultrasonic transducers, manufactured by the renowned Dakota NDT, are specifically designed for precise thickness gauging and corrosion assessment, particularly in challenging inspection environments prevalent.

Featuring a robust dual element configuration, these transducers excel in applications where single element probes might struggle due to surface conditions or material properties.

The dual element design incorporates physically separated transmitting and receiving piezoelectric crystals within the transducer housing. This unique arrangement provides significant advantages:  

• Superior Near-Surface Resolution: By isolating the transmitted pulse from the received echoes, these transducers offer exceptional ability to detect and measure features very close to the material surface, crucial for identifying early stages of corrosion or thin layers.

• Enhanced Reception of Attenuated Echoes: The separated elements improve sensitivity to weak or scattered ultrasonic signals, making them ideal for inspecting materials with rough surfaces, high attenuation characteristics, or for detecting subtle indications of corrosion like pitting.

• Reduced Sensitivity to Lift-Off: Dual element transducers are generally less susceptible to variations in probe coupling or slight lift-off from the inspection surface, contributing to more consistent and reliable readings.

The key technical specifications of these transducers are:

• Center Frequency: 7.5 MHz: This frequency provides an excellent balance between penetration capability and resolution, making it suitable for a wide range of materials and thicknesses commonly encountered in Venezuelan industries, from pipelines to structural components.

• Element Size: 1/4 inch (6.35 mm): The 1/4 inch diameter of each transmitting and receiving element offers a practical contact area for effective sound transmission and reception.

• High Damping (HD): The "HD" designation indicates that these transducers are highly damped. This critical feature results in:

  • Short Ultrasonic Pulses: Leading to improved axial resolution, allowing for the differentiation of closely spaced reflectors, essential for accurate thickness measurements and detection of layered corrosion.

  • Broad Bandwidth: Enabling the transducer to operate effectively over a wider range of frequencies, which can be advantageous when inspecting diverse materials or encountering varying acoustic impedance.

   

• Potted on Top Construction: The electrical connections and internal components at the top of the transducer housing are securely encased in a protective potting material. This robust construction provides excellent environmental sealing against moisture and contaminants common in the Venezuelan climate, as well as strain relief for the cable, enhancing the transducer's durability and longevity in demanding field conditions.

• Dakota Ultrasonics Quality: As a product of Dakota NDT, these transducers are manufactured to high-quality standards, ensuring reliable and accurate performance when used with compatible ultrasonic thickness gauges and flaw detectors.

Key Features:

• Optimized for Thickness Gauging and Corrosion Surveys: Specifically designed for these critical applications.

• Exceptional Near-Surface Resolution: Ideal for detecting shallow defects and measuring thin materials.  

• Enhanced Sensitivity to Weak Echoes: Performs reliably on rough or attenuating materials and for detecting pitting.

• Reduced Lift-Off Effects: Provides more consistent readings in field environments.

• Balanced 7.5 MHz Frequency: Offers versatile performance across various materials and thicknesses.

• Durable Potted Construction: Ensures longevity and reliability in challenging conditions.

• Trusted Dakota Ultrasonics Brand: Guarantees quality and performance.

Applications:

• Corrosion monitoring on pipelines, storage tanks, and pressure vessels in the oil and gas industry.

• Thickness measurement of structural steel in bridges, buildings, and infrastructure.

• Inspection of process equipment and machinery in manufacturing plants.

• Quality control of fabricated metal components.

• Maintenance inspections in various industrial sectors