Geophone and method for the study of elastic wave phenomena

Details Geophone and method for the study of elastic wave phenomena Geophone and method for the study of elastic wave phenomena

G - Physics

01

V

G01V 1/18 (2006.01)

Patent

CA 2318036

A method for the study of elastic wave phenomena in the ground, where the detection of said phenomena is carried out with the use of at least a geophone comprising at least a couple of transducers (20, 21; 37, 38), each transducer (20, 21; 37, 38) being apt to detect horizontally polarized shear waves, represented by SH signals, and compression waves, represented by P signals. The method comprises: i) a first detection, by means of one of said transducers (20, 21; 37, 38) of the sum of said P and PH signals (P+SH); ii) a second detection, by means of the other one of said transducer (20, 21; 37, 38) of the difference between said P and SH signals ([P-SH] or [-P+SH]); iii) the compensation ([P+SH]-[P-SH]) or [P+SH]+[P-SH]) between said first and said second detection, in order to acquire signals being representative of horizontally polarized shear waves with an increased sensitivity and being less affected by the presence of compression waves.

Cette invention a trait à une méthode d'étude de phénomènes d'ondes élastiques dans le sol, méthode selon laquelle la détection desdits phénomènes s'effectue à l'aide d'au moins un géophone pourvu d'au moins deux transducteurs (20, 21; 37, 38) capables, chacun, de détecter des ondes transversales à polarisation horizontale, représentées par des signaux SH, et des ondes de compression, représentées par des signaux P. Cette méthode comprend les opérations suivantes: (i), une première détection, à l'aide de l'un desdits transducteurs (20, 21; 37, 38) de la somme des signaux P et PH (P+SH), et (ii), une seconde détection, à l'aide de l'autre transducteur (20, 21; 37, 38), de la différence entre ces signaux P et SH: ([P-SH] ou [-P+SH]). Le calcul (iii) de la compensation ([P+SH]-[P-SH]) ou ([P+SH]+[P-SH]) entre les deux détections, permet d'acquérir des signaux représentatifs d'ondes transversales à polarisation horizontale dotées d'une sensibilité accrue et moins perturbées par la présence d'ondes de compression.

Affiliated with

Also associated with

Rating

Geophone and method for the study of elastic wave phenomena does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Geophone and method for the study of elastic wave phenomena, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geophone and method for the study of elastic wave phenomena will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1647725