SYSTEM AND METHOD FOR PHASED ARRAY MATERIAL IMAGING
First Claim
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1. A phased array probe comprising:
- a plurality of transmitters and receivers wherein at least one of said transmitter is a reference transmitter and all other transmitters are laterally offset from said reference transmitter, and wherein at least one receiver is a reference receiver with all the other receivers being laterally offset from said reference receiver;
a beam former generating control signals for exciting each said transmitter,a pulser generator generating excitation pulses to said transmitter in response to said control signals, in response said transmitters sending respective probe signals to a target or other object of interest, the excitation pulses to all other transmitters being delayed by a period related to said lateral offset;
a receiving module receiving echo signals from said receivers corresponding to said probe signals, said receiving module delaying echo signals from said all other receivers by delays related to said lateral offset; and
an analyzer analyzing said echo signals.
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Abstract
A probe is described for analyzing a target using an array of transceivers formed of transmitter/receiver pairs. As opposed to the prior art, the high voltage trigger signals from used to trigger the transmitters are separated from the output signals of the receivers thereby resulting in a simpler and more efficient circuitry. Moreover, the output signals are delayed to compensate for the delays in the echo signals from the target due to the varying distance between the different transceivers and the target. The probe can be used for analyzing pathological organs, as well as many other objects such as gas pipes, airplane wings, etc.
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Citations
10 Claims
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1. A phased array probe comprising:
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a plurality of transmitters and receivers wherein at least one of said transmitter is a reference transmitter and all other transmitters are laterally offset from said reference transmitter, and wherein at least one receiver is a reference receiver with all the other receivers being laterally offset from said reference receiver; a beam former generating control signals for exciting each said transmitter, a pulser generator generating excitation pulses to said transmitter in response to said control signals, in response said transmitters sending respective probe signals to a target or other object of interest, the excitation pulses to all other transmitters being delayed by a period related to said lateral offset; a receiving module receiving echo signals from said receivers corresponding to said probe signals, said receiving module delaying echo signals from said all other receivers by delays related to said lateral offset; and an analyzer analyzing said echo signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of probing a target comprising the steps of:
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generating a plurality of transmit signals from an array of transmitters disposed in a line, each transmit signal being directed to a target, with at least one said transmitters being a reference transmitter and the beams from the other transmitters reaching the target with a respective delay; detecting echo signals from the target resulting from said transmit signals with a plurality of receivers; delaying said echo signals by said respective delays; converting said echo signals into corresponding digital signals; and summing said digital signals. - View Dependent Claims (10)
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Specification