Roll structure acoustic gage and method

Details Roll structure acoustic gage and method Roll structure acoustic gage and method

1995-05-11

1996-07-16

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73 1205, 73 1211, 73 78, 73632, G01N 2918

Patent

active

055356273

ABSTRACT:
A device and method for determining the radial pressure profile of a wound roll of material uses internal and external sensors to measure the time of flight of an acoustic wave induced within the roll by sharply impacting the surface, or by impacting a member in contact with the surface. The wave measurements are then fed to a computer which uses a modification of Hakiel's model to compute the radial pressure profile.

REFERENCES:
patent: 3425267 (1969-02-01), Pfeiffer
patent: 3540270 (1970-11-01), Wolfer
patent: 3687388 (1972-08-01), Pfeiffer
patent: 4218922 (1980-08-01), Ensminger
patent: 4594880 (1986-06-01), Murdoch et al.
patent: 4676094 (1987-06-01), Hoffmann et al.
patent: 4845989 (1989-06-01), Titlow et al.
Pfeiffer, J. D., "Internal Pressures in a Wound Roll of Paper", Tappi Journal, vol. 49, No. 8, pp. 342-347.
Eriksson, L., "Deformations in Paper Rolls", Proceedings of the First Winding Technology Conference, pp. 195-212.
Hakiel, Z., "Nonlinear Model for Wound Roll Stresses", Tappi Journal, vol. 70, No. 5, pp. 113-117.
Kinsler, L. E. et al., "Fundamentals of Acoustics", 3rd ed.
Brillouin, L., "Wave Propagation and Group Velocity".
Altmann, H., "Formulas for Computing the Stresses in Center-Wound Rolls", Tappi Journal, vol. 51, No. 4, pp. 176-179.
Yagoda, H., "Generalized Formulas for Stresses in Wound Rolls", Tappi Journal, vol. 64, No. 2.
Good, J et al., "Predicting Internal Stresses in Center-Wound Rolls with An Undriven Nip Roller", Tappi Journal, vol. 74, No. 6, pp. 101-109.

Affiliated with

Also associated with

Rating

Roll structure acoustic gage and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll structure acoustic gage and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll structure acoustic gage and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1776929