On-line measurement and control of basis weight and thickness of rubber and plastic web products

Author

Yowell, Robert

Author_Institution

Ohmart Corp., Cincinnati, OH, USA

fYear

1992

fDate

13-14 April 1992

Firstpage

40

Lastpage

46

Abstract

A review of the various techniques that have been used to successfully measure the basis weight and thickness of flat web products is presented. The sensors that are discussed include nuclear and X-ray sensors, capacitance sensors, direct caliper sensors utilizing eddy current, ultrasonic, and laser technologies, and a selective sensor utilizing infrared (IR) technology.<>

Keywords

X-ray applications; computerised instrumentation; electric sensing devices; infrared detectors; nonelectric sensing devices; plastics industry; rubber industry; thickness measurement; ultrasonic transducers; weighing; weight control; IR sensors; X-ray sensors; capacitance sensors; direct caliper sensors; eddy current sensors; laser sensors; nuclear sensors; on-line control; on-line measurement; plastic web products; rubber web products; thickness measurement; ultrasonic sensors; weight measurement; Capacitance; Capacitive sensors; Eddy currents; Infrared sensors; Thickness control; Thickness measurement; Ultrasonic variables measurement; Weight control; Weight measurement; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering Problems in the Rubber and Plastics Industries, 1992., IEEE Conference Record of 1992 Forty-Fourth Annual Conference of

Conference_Location

Akron, OH, USA

Print_ISBN

0-7803-0543-4

Type

conf

DOI

10.1109/RAPCON.1992.167498

Filename

167498