Method of assembling and monitoring an acoustic panel...

Details Method of assembling and monitoring an acoustic panel... Method of assembling and monitoring an acoustic panel...

2006-07-11

2006-07-11

Koch, George (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S182000, C156S197000, C156S292000

Reexamination Certificate

active

07074287

ABSTRACT:
The invention relates to a method of producing and checking a double-resonator honeycomb acoustic panel. The aforementioned panel is characterised in that, following the assembly of the two honeycombs and the partition and prior to the assembly of at least one of the two liners, the perforation rate of said partition is checked by scanning same with digital camera. The successive images thus obtained are transmitted to a computer which determines the perforation rate T of the partition by applying formula T=N1/N, wherein N1 is the number of pixels that correspond to the holes and N is the number of pixels in the image.

REFERENCES:
patent: 4421811 (1983-12-01), Rose et al.
patent: 4541879 (1985-09-01), Riel
patent: 5175401 (1992-12-01), Arcas et al.
patent: 6203656 (2001-03-01), Syed
patent: 0 509 166 (1992-10-01), None
patent: 2 324 262 (1998-10-01), None

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