IMAGING OF AN ULTRASONIC WAVE REFLECTED BY AN OBJECT USING AN ACOUSTIC LENS IN AIR

• Abstract:

  We have investigated the imaging of an ultrasonic wave reflected by an object using an acoustic lens in air. The reflected ultrasonic wave is focused by a spherical acoustic lens on an ultrasonic array sensor having 32 ultrasonic receivers. We have designed and manufactured the acoustic lens, which has a diameter of 25 cm. The imaging of the ultrasonic wave is demonstrated experimentally. This approach does not require delay-and-sum operation and can be operated using a small amount of memory. Therefore, load calculation is decreased.
• Keywords:

  imaging, ultrasonic, array sensor, range sensor, acoustic lens
• Download:

  IMEKO-WC-2015-TC10-236.pdf
• DOI:

  _unreg_wc-2015.236

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