Apparatus for measuring the quality of spot welds

Details Apparatus for measuring the quality of spot welds Apparatus for measuring the quality of spot welds

G - Physics

01

N

G01N 29/24 (2006.01)

Patent

CA 2216488

Apparatus (2) for measuring the quality of spot welds, comprising a housing (4); a fluid medium (6) in the housing (4); transmitter means (8) for transmitting at least one ultrasonic pulse through the fluid medium (6) to a spot weld (10), the ultrasonic pulse then reverberating in the spot weld (10); and receiver means (16) through which the ultrasonic pulse passes on its way to the spot weld (10), the receiver means (16) being ultrasonically sensitive so that it is able to receive echoes from the spot weld (10) by the reverberation of the ultrasonic pulse in the spot weld (10), the receiver means (16) comprising a plurality of ultrasonically sensitive elements (18), and the receiver means (16) being such that during use of the apparatus (2) the receiver means (16) is located adjacent the spot weld (10).

Cette invention concerne un appareil de mesure (2) de la qualité des points de soudure qui comprend une enceinte (4), une substance fluide (6) dans l'enceinte (4), un générateur (8) servant à émettre au moins une impulsion ultrasonore vers un point de soudure (10) à travers la substance fluide (6), l'impulsion ultrasonore se réverbérant dans le point de soudure (10) et un récepteur (16) traversé par l'impulsion ultrasonore dirigée vers le point de soudure (10), ledit récepteur (16) étant sensible aux échos ultrasonores résultant de la réverbération de l'impulsion ultrasonore dans le point de soudure (10) en raison de la série d'éléments sensibles aux ultrasons (18) qu'il comporte et disposé de telle sorte qu'il soit à proximité du point de soudure (10) lorsque l'appareil 2 est en fonction.

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