APPARATUS AND METHOD FOR MEASURING PROPERTIES OF AN OBJECT USING SCATTERED ELECTROMAGNETIC RADIATION

• Main Author: LOWITZ, DAVID A
• Format: Patent
• Language: English
• Published: 24.07.1991
• Edition: 5
• Subjects: CIGARETTES; CIGARS; GAMMA RAY OR X-RAY MICROSCOPES; HUMAN NECESSITIES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; IRRADIATION DEVICES; MACHINES FOR MAKING CIGARS OR CIGARETTES; MEASURING; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHYSICS; SMOKERS' REQUISITES; TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR; TESTING; TOBACCO

A method and apparatus for monitoring two components of an object, such as moisture content and density in a tobacco rod, using scattered electromagnetic radiation are provided. Both the real and imaginary parts of the dielectric constant of water vary greatly over frequencies in the gigahertz regio...