公开(公告)号：US06813950B2

公开(公告)日：2004-11-09

申请号：US10206012

申请日：2002-07-25

Applicant: David Glascock ,  Noël Dubé ,  Vincent Pasquer ,  Laurent Butin

Inventor： David Glascock ,  Noël Dubé ,  Vincent Pasquer ,  Laurent Butin

IPC: G01N2900

CPC classification number: G01N29/221 ,  G01N29/262 ,  G01N29/28 ,  G01N2291/106 ,  G01N2291/2634

Abstract: One or more phased array ultrasonic probes in the shape of conical section arcs, or an entire conical section ring, emit beams at a fixed incident angle with respect to the outer surface of a tube or pipe under inspection. At any given moment, these beams strike the tube at a single small entry zone from number of different directions. After being refracted at the inspection angle corresponding to the fixed angle of incidence, defects having longitudinal, transverse and oblique orientations are detected in the three-dimensional volume of the tube wall. The number of entry zones required for complete coverage of the outer surface of the tube is a function of the size of the tube, the speed at which it passes through the inspection station and the rate of rotation of the tube.

公开(公告)号：US07231314B2

公开(公告)日：2007-06-12

申请号：US11367031

申请日：2006-03-02

Applicant: David Glascock

Inventor： David Glascock

IPC: G01B7/00

CPC classification number: G01B17/02 ,  G01B17/00

Abstract: The wall thickness and ovality of a tubular are simultaneously determined. The theoretical radius of a pipe is computed from a measurement of its circumference. An ultrasonic device conventionally used to measure the wall thickness of tubulars is adapted to also measure the maximum and minimum diameters and ovality by equipping or utilizing existing ultrasound inspection device with contact surfaces which contact the tubular at a fixed distance apart and at a known distance from the surface of the ultrasonic transducer. The contact surfaces define a chord of known length on the tubular under test. The mean radius of the tubular may be computed from multiple water path measurements around the circumference relative to a known fixture. The maximum and minimum diameter and ovality are calculated from the measured differences in distance from the surface of the tubular to the ultrasonic transducer and the theoretical circle. Wall thickness and ovality may be correlated relative to position by using the same apparatus for both measurements.

Abstract translation: 同时确定管的壁厚和椭圆度。 管的理论半径是根据其圆周的测量计算的。 通常用于测量管状壁厚度的超声波装置也适用于通过装备或利用现有的超声检查装置来测量最大和最小直径和椭圆度，所述超声检查装置具有接触表面，该接触表面以固定的距离与已知距离 超声换能器的表面。 接触表面在被测试的管状物上限定已知长度的弦。 管状物的平均半径可以相对于已知的固定装置围绕圆周的多个水路径测量来计算。 最大和最小直径和椭圆度是从测量的从管表面到超声换能器的距离和理论圆的距离计算的。 通过使用相同的装置进行两个测量，壁厚度和椭圆度可以相对于位置相关。

公开(公告)号：US20070225939A1

公开(公告)日：2007-09-27

申请号：US11744334

申请日：2007-05-04

Applicant: David Glascock

Inventor： David Glascock

IPC: G01B15/00 ,  G01B7/00 ,  G06F15/00

CPC classification number: G01B17/02 ,  G01B17/00

Abstract: The wall thickness and ovality of a tubular are simultaneously determined. The theoretical radius of a pipe is computed from a measurement of its circumference. An ultrasonic device conventionally used to measure the wall thickness of tubulars is adapted to also measure the maximum and minimum diameters and ovality by equipping or utilizing existing ultrasound inspection device with contact surfaces which contact the tubular at a fixed distance apart and at a known distance from the surface of the ultrasonic transducer. The contact surfaces define a chord of known length on the tubular under test. The mean radius of the tubular may be computed from multiple water path measurements around the circumference relative to a known fixture. The maximum and minimum diameter and ovality are calculated from the measured differences in distance from the surface of the tubular to the ultrasonic transducer and the theoretical circle. Wall thickness and ovality may be correlated relative to position by using the same apparatus for both measurements.

Abstract translation: 同时确定管的壁厚和椭圆度。 管的理论半径是根据其圆周的测量计算的。 通常用于测量管状壁厚的超声波装置也适用于通过装备或利用现有的超声波检查装置来测量最大和最小直径和椭圆度，所述超声检查装置具有接触表面，该接触表面以固定的距离与已知距离 超声换能器的表面。 接触表面在被测试的管状物上限定已知长度的弦。 管状物的平均半径可以相对于已知的固定装置围绕圆周的多个水路径测量来计算。 最大和最小直径和椭圆度是从测量的从管表面到超声换能器的距离和理论圆的距离计算的。 通过使用相同的装置进行两个测量，壁厚度和椭圆度可以相对于位置相关。

公开(公告)号：US20060212261A1

公开(公告)日：2006-09-21

申请号：US11367031

申请日：2006-03-02

Applicant: David Glascock

Inventor： David Glascock

IPC: G01B15/00

CPC classification number: G01B17/02 ,  G01B17/00

Abstract: The wall thickness and ovality of a tubular are simultaneously determined. The theoretical radius of a pipe is computed from a measurement of its circumference. An ultrasonic device conventionally used to measure the wall thickness of tubulars is adapted to also measure the maximum and minimum diameters and ovality by equipping or utilizing existing ultrasound inspection device with contact surfaces which contact the tubular at a fixed distance apart and at a known distance from the surface of the ultrasonic transducer. The contact surfaces define a chord of known length on the tubular under test. The mean radius of the tubular may be computed from multiple water path measurements around the circumference relative to a known fixture. The maximum and minimum diameter and ovality are calculated from the measured differences in distance from the surface of the tubular to the ultrasonic transducer and the theoretical circle. Wall thickness and ovality may be correlated relative to position by using the same apparatus for both measurements.

Abstract translation: 同时确定管的壁厚和椭圆度。 管的理论半径是根据其圆周的测量计算的。 通常用于测量管状壁厚度的超声波装置也适用于通过装备或利用现有的超声检查装置来测量最大和最小直径和椭圆度，所述超声检查装置具有接触表面，该接触表面以固定的距离与已知距离 超声换能器的表面。 接触表面在被测试的管状物上限定已知长度的弦。 管状物的平均半径可以相对于已知的固定装置围绕圆周的多个水路径测量来计算。 最大和最小直径和椭圆度是从测量的从管表面到超声换能器的距离和理论圆的距离计算的。 通过使用相同的装置进行两个测量，壁厚度和椭圆度可以相对于位置相关。