TECHNIQUE FOR IMAGING USING ARRAY OF FOCUSED VIRTUAL SOURCES USING PHASED EXCITATION
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a method and a device for detecting, measuring and evaluating defects in an object and/or specific material property of an object using a phased array wave technique. The device comprises of a phased array transceiver probe/source and control unit for use in a phased array wave technique for transmitting and receiving wave signals on and from the area to be inspected. The phased array source is divided into a plurality of virtual probes/sources and each virtual probe/source comprises of plurality of elements arranged sequentially but without phasing for excitation.
-
Citations
48 Claims
-
1-28. -28. (canceled)
-
29. A method for detecting defects/anomalies, measuring and evaluating defects/anomalies in an object/media and/or specific material property of an object/media using a phased array wave technique comprising:
-
a. dividing a phased array transceiver source into a plurality of virtual sources wherein at least one of the virtual source is characterized in creating a single virtual beam by arranging plurality of elements in each virtual source sequentially but without phasing for excitation and each element receiving one pulse and plurality of elements together creating a plurality of beams having same phase and amplitude thereby virtually creating a single beam having a specific angle and focused at a specific depth, b. transmitting and receiving wave signal via plurality of virtual sources in a controlled manner onto an area to be inspected with a control unit that controls the phased array source, and c. evaluating with the control unit the defect/anomaly and/or specific material property on the inspected area by manipulation of measured signals of the plurality of virtual sources. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A defect/anomaly identification device for identifying, measuring and evaluating defects/anomalies in an object/media and/or identifying, measuring and evaluating specific material property of the object/media comprising:
-
a. a phased array transceiver source for use in a phased array wave technique for transmitting and receiving wave signals on and from the area to be inspected wherein the phased array source is divided into a plurality of virtual sources wherein at least one of the virtual source is characterized in that the virtual source comprises a plurality of elements arranged sequentially but without phasing for excitation, such that each element of the virtual source receiving one pulse and the plurality of elements together creating plurality of beams having same phase and amplitude, thereby creating a single virtual beam having a specific angle and focused at a specific depth, and b. a control unit which controls the phased array source such that a plurality of the virtual sources each transmitting and receiving a wave signal directly onto and from the area of the object to be inspected, and wherein the control unit directs a plurality of wave signals onto the area to be inspected, and evaluates the defect/anomaly by manipulation of measured signals of the plurality of virtual sources. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48)
-
Specification