Typical array probes have a frequency ranging from 1 MHz to 17 MHz and have between 10 and 128 elements. Olympus offers a wide variety of probes using piezocomposite technology for all types of inspections. This section shows Olympus standard phased array probes, which are divided into three types: angle beam probes, integrated wedge probes, and immersion probes.

Other types of probes can be designed to suit the needs of your application.

Linear arrays are the most commonly used phased array probes for industrial applications. One of the important features that defines phased array probes is the active probe aperture.

Weld Series Probes

Weld inspection probes offer housings combined with a front or top exit cable to avoid interference with the scanner probe holder. These probes are suitable for manual and automated inspections of welds. The NEW A31 and A32 Weld Series phased array probes and wedges simplify and standardize weld inspections with fewer designs, and improve signal-to-noise ratio.

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Dual Array Probes for Weld

Dual matrix array (DMA) probes consist of two matrix array probes wired to the same connector with the capacity to perform transmit-receive longitudinal (TRL) sound beams. They are particularly helpful when testing cladded pipes or highly attenuating materials.

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Dual Array Probe for Corrosion

The new Dual Linear Array probe offers several advantages over conventional ultrasonic dual element transducers for corrosion survey applications. This phased array solution improves productivity through features such as larger beam coverage, faster scan speed, and C-scan imaging with increased data-point density.

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Manual Contact Probes

Our A24 probe series for manual contact inspection incorporates an ergonomic case design, replaceable membrane, and large square aperture to work in a variety of applications. The 0.02-inch (0.5 mm) thick membrane makes it simpler to verify coupling, glides smoothly on rough surfaces, and is resistant to wear.

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Small-footprint Probes

Small-footprint probes offer access to confined areas (A00 probe has an 8 × 8 mm footprint).

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Universal Probes

The universal probes are designed to have a low-profile probe/wedge combination for easier access in restricted areas. A wide selection of wedges is available to suit any angle beam application. These probes are used for manual or automated inspection of 6.35 mm to 38 mm thick welds and the inspections of castings, forgings, pipes, tubes, and machined and structural components for cracks and welding defects.

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Near-wall Probes

Near-wall probes offer a shortened dead zone at both ends of the probe (1.5 mm between center of first or last element and housing edge). They are well suited for composite channel inspections and are used for C-scan inspections of composites (delamination, disbonding, and porosity).

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Deep Penetration Probes

Deep penetration probes can be matched to a wide selection of wedges to suit any angle beam application. These probes are dedicated to deep penetration applications such as the inspection of thick plates and welds, forging, and noisy or granular material.

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Immersion Probes

Immersion probes are designed to be used with a water wedge or in an immersion tank when the test part is partially or wholly immersed. They are longitudinal wave probes that can be set up for refracted shear-wave inspections using a Rexolite wedge.

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Curved Array Probes

Curved array probes are made with a corrosion-resistant stainless steel case and are guaranteed waterproof up to 1 m underwater. The acoustic impedance of these probes matches water. They are compatible with adjustable immersion wedges and are used for the inspection of carbon fiber reinforced polymers (CFRP) corners and in addition to the inspection of composite for delamination.

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Immersion Corner Wedges for Curved Array Probes

Immersion corner wedges for curved array probes are available in specific radius and angle and also with adjustable radius to fit on various components to be inspected. These wedges are designed to perform manual scans and to accommodate the Mini-Wheel encoder.

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Integrated Wedge and Code Compliant Probes

Integrated wedge and code compliant probes combine the probe and the wedge in the same housing, offering the lowest-profile probe-and-wedge combination for contact angle beam inspection. Coupling is always good between probe and wedge interfaces, as there is no need for couplant between the probe and wedge. These probes are used for manual weld inspection using 40° to 70° simultaneously in addition to manual inspection of stress-corrosion cracking and AWS and DGS code compliant applications.

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Wedges for Angle Beam Probes

The wedges for angle beam probes are available in standard refracted angles of 0°, 45°, 55°, and 60° in steel for angle-beam inspections from 30° to 70°, SW or LW. They come with stainless steel screw receptacles providing a firm anchoring of probes to wedges. The IHC wedge option can be ordered to improve the quality of the inspection: irrigation, mounting holes for the wedge holder to work with any Olympus scanner, and carbide pins to increase wear resistance.

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