Wave transmission lines and networks – Coupling networks – Delay lines including elastic bulk wave propagation means
Patent
1991-12-02
1993-08-31
Pascal, Robert J.
Wave transmission lines and networks
Coupling networks
Delay lines including elastic bulk wave propagation means
333147, 333145, H03H 930
Patent
active
052412873
ABSTRACT:
Acoustic buffer rods are useful in the nondestructive ultrasonic evaluation of materials. In order to reduce the occurrence of spurious signals in the reflected acoustic waves forming an acoustic "image" of a sample, it is proposed to design buffer rods such that their radial acoustic velocity profile is graded, preferably having a parabolic shape. The lowest acoustic velocity of the buffer rod is in its center, i.e. at the longitudinal axis of the rod. This design is applicable to both uncladded buffer rods as well as to the core of cladded ones.
REFERENCES:
patent: 3488602 (1970-01-01), Seidel et al.
patent: 3736532 (1973-05-01), Armenakas
patent: 3789327 (1974-01-01), Waldron et al.
patent: 3824505 (1974-07-01), Borner
patent: 3922622 (1975-11-01), Boyd et al.
patent: 4077023 (1978-02-01), Boyd et al.
patent: 4330768 (1982-05-01), Huang et al.
patent: 4742318 (1988-05-01), Jen et al.
patent: 4743870 (1988-05-01), Jen et al.
C. K. Jen et al., "Acoustic Characterization of Optical Fiber Glasses", SPIE, vol. 1590, pp. 107-119, Sep. 1991.
Lee Benny
National Research Council of Canada
Pascal Robert J.
Szereszewski Juliusz
LandOfFree
Acoustic waveguides having a varying velocity distribution with does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Acoustic waveguides having a varying velocity distribution with , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic waveguides having a varying velocity distribution with will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2300626