A phased array ultrasound transducer is typically 2-3 cm long, and consist of 64-128 elements. It is a smaller assembly than a sequential array, and can be either linear or curvilinear. A sector field of view is produced by all elements firing to create a single waveform. Small delays in element firing allow for electronic field steering and focusing without moving the ultrasound probe. All elements will be fired multiple times with different degrees of steering to create an image. Echoes are detected by all elements and entered into an algorithm to form the image. Line density decreases at the bottom of the image. The sensitivity of the image reduces at extremes of steering, and lateral resolution is best in the center of the field of view due to a larger effective aperture. The benefits of a phased array include: a small-faced transducer with adjustable ultrasonic beam focus that enables imaging in constrained spaces. Tube inspection, where multiple probes are often used to detect cracks, find laminar flaws, and measure overall thickness, is expected to boost the global phased array ultrasonic transducer market growth.
Market Dynamics
Easy availability of the product to the customers is attributed to growth of global phased array ultrasonic transducer market. For instance, on May 25, 2023, Vermon NDT, a leading manufacturer of phased array ultrasonic testing (PAUT) probes, announced the launch of all-new online store. The online website provides worldwide customers with faster and easier access to a wide range of high-quality PAUT probes, revolutionizing the way professionals in nondestructive testing (NDT) obtain their equipment. The launch will facilitate the online shopping experience for worldwide customers looking for PAUT probes including contact phased arrays, immersion and dual matrix arrays with almost 2 000 configurations available with 1 to 10 days shipping worldwide.
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