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Ultrasonic Phased Array

Ultrasonic phased arrays use multiple ultrasonic elements and electronic time delays to generate and receive ultrasound, creating beams by constructive and destructive interference. As such, phased arrays offer significant technical advantages over conventional single-probe ultrasonic testing: the phased array beams can be steered, scanned, swept and focused electronically. Electronic scanning permits very rapid coverage of the components, typically an order of magnitude faster than a single-probe mechanical system. Speed increases like this can be highly cost-effective.

  1. Moles, M. Chapter 3, “Generation and Detection of Ultrasound”: Part 4, “Phased Arrays.” Nondestructive Testing Handbook, third edition: Vol. 7, Ultrasonic Testing. Columbus, OH: American Society for Nondestructive Testing (2007): p 90-94.
  2. Ginzel, E.A. and D. Stewart. “Photo-Elastic Visualisation of Phased Array Ultrasonic Pulses In Solids.” 16th World Conference on Nondestructive Testing [Montreal, Canada, August-September 2004]. Hamilton, Ontario, Canada: Canadian Institute for Nondestructive Evaluation (2004).
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