Radiant energy – Calibration or standardization methods
Patent
1980-10-01
1984-01-03
Howell, Janice A.
Radiant energy
Calibration or standardization methods
250308, 2503591, G01D 1800, G01N 2300
Patent
active
044244436
ABSTRACT:
Apparatus for measuring the density of a cigarette rod which is moved lengthwise has a source of penetrative radiation at one side and a single ionization chamber at the other side of the path of the rod. A reciprocable slide or diaphragm causes the radiation to alternately penetrate through the rod and thereupon into the chamber in a first position and to bypass the rod in a second position of the slide or diaphragm. The ionization chamber converts radiation which has penetrated through the rod into first electric signals and the radiation which has bypassed the rod into second electric signals. An evaluating circuit stores each second signal during the next-following interval of generation of first signals, and the evaluating circuit compares the first signals with that second signal which is then stored in the evaluating circuit. Signals denoting the difference between the first signals and the stored second signal can be displayed and/or used to adjust the machine which produces the rod if the difference between the first signals and the stored second signal is indicative of unsatisfactory density.
REFERENCES:
patent: 2532817 (1950-12-01), Lafferty et al.
patent: 2938520 (1960-05-01), Powell
patent: 3056026 (1962-09-01), Bigelow
patent: 3529153 (1970-09-01), Zimmerman et al.
patent: 3683187 (1972-08-01), Tompkins
patent: 4024394 (1977-05-01), Reuland
Hauni-Werke Ko/ rber & Co. KG.
Howell Janice A.
LandOfFree
Apparatus for measuring the density of cigarette rods or the lik does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for measuring the density of cigarette rods or the lik, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for measuring the density of cigarette rods or the lik will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1033234