US 9,810,666 B2
Device and method for nondestructive inspection of tubular products, especially on site
Francois Deneuvile, Beaurepaire sur Sambre (FR)
Assigned to VALLOUREC TUBES FRANCE, Boulogne Billancourt (FR)
Appl. No. 14/773,634
Filed by VALLOUREC TUBES FRANCE, Boulogne Billancourt (FR)
PCT Filed Mar. 19, 2014, PCT No. PCT/FR2014/050643
§ 371(c)(1), (2) Date Sep. 8, 2015,
PCT Pub. No. WO2014/147344, PCT Pub. Date Sep. 25, 2014.
Claims priority of application No. 13 52548 (FR), filed on Mar. 21, 2013.
Prior Publication US 2016/0025684 A1, Jan. 28, 2016
Int. Cl. G01N 29/22 (2006.01); G01N 29/24 (2006.01); G01N 29/26 (2006.01); G01N 29/265 (2006.01)
CPC G01N 29/265 (2013.01) [G01N 29/225 (2013.01); G01N 29/2456 (2013.01); G01N 29/262 (2013.01); G01N 2291/056 (2013.01); G01N 2291/106 (2013.01); G01N 2291/2634 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A device for inspection of tubular pieces, comprising:
at least one cart including:
a plurality of elemental transducers of electroacoustic type, distributed along at least a first direction; and
a guide configured to cooperate with an exterior surface of a tubular piece being inspected to position the cart such that the first direction essentially corresponds to a direction transverse to the tubular piece;
a control electronics, connected to the electroacoustic transducers;
wherein the control electronics comprises:
a memory storing one or more timed excitation laws;
one or more controllers configured to apply in succession at least one respective timed excitation law to subsets of mutually adjacent elemental transducers along the first direction; and
wherein at least certain of the timed excitation laws are designed so that the elemental transducers of the respective subsets jointly produce incident beams of ultrasonic waves propagating along respective directions inclined relative to a direction normal to the exterior surface of the tubular piece.