Ultrasonic defect detection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 7, 2002
Grant Date -
N/A
app pub date -
Sep 5, 2000
filing date -
Feb 23, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ultrasonic defect detection system includes a steered beam transmitter for directing an ultrasonic beam through the front face to the back face of a specimen; a sensor device for sensing the location on the front face of the near shadow of a defect from the beam reflected from the back face before the defect and the far shadow of the defect from the beam reflected from the back face after the defect; and an arithmetic circuit responsive to the location of the shadows on the front face for determining the distance between the transmitter and the near and far boundary of the near shadow and at least the near boundary of the far shadow for calculating the location and/or the size and/or the orientation of the defect.
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