Dual sensor scanner for measuring weight of paper and related sh

Details Dual sensor scanner for measuring weight of paper and related sh Dual sensor scanner for measuring weight of paper and related sh

1991-05-30

1992-03-24

Hannaher, Constantine

Radiant energy

Inspection of solids or liquids by charged particles

Including a radioactive source

2503581, 2503591, 2503601, G01N 2300, G01N 2135

Patent

active

050991183

ABSTRACT:
A dual sensor scanner includes an optical sensor and a nuclear sensor such as a beta gauge for sensing the basis weight or other parameters of paper as it is being produced by a paper making machine. The nuclear sensor signal is filtered to pass a low frequency portion and the optical sensor is filtered to pass a high frequency portion. The two filtered signals are combined to provide a substantially full frequency signal indicative of the basis weight of the paper. The sensor signals may be manually calibrated or, preferably, the nuclear sensor signal may be used to provide continuous on-line calibration of the optical sensor signal.

REFERENCES:
patent: 4289964 (1981-09-01), Baker
patent: 4845730 (1989-07-01), Mercer
patent: 4943721 (1990-07-01), Vidrine, Jr.

Affiliated with

Also associated with

Rating

Dual sensor scanner for measuring weight of paper and related sh does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual sensor scanner for measuring weight of paper and related sh, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual sensor scanner for measuring weight of paper and related sh will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2012133