Jack D Leatherwood

US Patent:

44135220, Nov 8, 1983

Filed:

May 22, 1981

Appl. No.:

6/267179

Inventors:

Jack D. Leatherwood - Hampton VA
Thomas K. Dempsey - Hampton VA
Sherman A. Clevenson - Newport News VA
David G. Stephens - Yorktown VA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

G01N 2900

US Classification:

73646

Abstract:

The invention is a ride quality meter that automatically transforms vibration and noise measurements into a single number index of passenger discomfort. The noise measurements are converted into a noise discomfort value. The vibrations are converted into single axis discomfort values which are then converted into a combined axis discomfort value. The combined axis discomfort value is corrected for time duration and then summed with the noise discomfort value to obtain a total discomfort value.