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System and method for phased array material imaging

  • US 9,841,502 B2
  • Filed: 03/04/2016
  • Issued: 12/12/2017
  • Est. Priority Date: 03/06/2015
  • Status: Active Grant
First Claim
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1. A phased array probe, comprising:

  • a plurality of transmitters including at least a first transmitter and a second transmitter spaced from the first transmitter, the plurality of transmitters being provided with a first ground reference;

    a plurality of receivers including at least a first receiver and a second receiver spaced from the first receiver, the plurality of receivers being provided with a second ground reference distinct from the first ground reference;

    a transmit beam former configured togenerate control signals to respectively excite each transmitter, a control signal associated with the second transmitter being delayed with respect to a control signal associated with the first transmitter, andgenerate a trigger signal corresponding to the delay;

    a pulser generator configured to generate excitation pulses to the transmitters in response to the control signals thereby causing a probe signal transmitted by the second transmitter to be delayed with respect to a probe signal transmitted by the first transmitter;

    a receiving module configured toreceive signals from the receivers corresponding to the probe signals, anddelay sampling of the received signal associated with the second receiver based on the trigger signal generated by the transmit beam former; and

    an analyzer configured to analyze the received signals, whereinsignal paths from the transmit beam former to the first and second transmitters are distinct from signal paths from the first and second receivers to the receiving module.

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