APPARATUS FOR PIPELINE INSPECTION AND METHOD OF PIPELINE INSPECTION
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
May 25, 2012
filing date -
May 26, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus for pipeline inspection, the apparatus having a longitudinal axis, is provided. The apparatus comprises: a plurality of ultrasonic sensor units arranged for inspection of a pipe wall, each ultrasonic sensor unit comprising an array of ultrasonic sensors, wherein the plurality of ultrasonic sensor units defines two or more groups of ultrasonic sensor units, wherein the groups of ultrasonic sensor units are axially offset from one another with respect to the longitudinal axis of the apparatus, the ultrasonic sensor units in each group being spaced circumferentially from one another, and wherein the ultrasonic sensor units are arranged out of phase, to provide inspection coverage for the circumferential spacing between the sensor units in the groups of ultrasonic sensor units so that the combined output from the groups of sensor units provides 360 degrees of inspection coverage.
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