Ultrasonic Phased Array Device for Acoustic Imaging in Air

@article{Harput2008UltrasonicPA,
  title={Ultrasonic Phased Array Device for Acoustic Imaging in Air},
  author={S. Harput and Ayhan Bozkurt},
  journal={IEEE Sensors Journal},
  year={2008},
  volume={8},
  pages={1755-1762}
}
An ultrasonic phased array device is developed to provide mobility aid for visually impaired people. To perform acoustic imaging, two different linear transducer arrays are constructed using commercially available transducers. The transmitter and receiver arrays are formed with six and four transducer elements, respectively. Individual transducer elements are discrete components with a radius of 1.9 wavelengths and a half-power beamwidth of 43deg at 40.8 kHz center frequency. The transmitter… CONTINUE READING
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