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Title: Method and apparatus for analyzing the fill characteristics of a packaging container

Abstract

A system is described for analyzing the fill characteristics of a container. A container having a filling material therein is positioned adjacent a sound generator. Sound waves from the generator are applied to the container, causing it to vibrate. A vibration detector is used to determine the amount of container vibration. A preferred vibration detector involves a laser vibrometer which applies a reference laser beam to the vibrating container. The reference beam is reflected off of the container to generate a reflected laser beam. The reflected beam experiences a Doppler frequency shift compared with the reference beam which is caused by container vibration. The Doppler shift of the reflected beam is then compared with standardized Doppler shift data from a control container. Repeated Doppler shift measurements may also be undertaken which are converted into a vibration profile that is compared with a standardized vibration profile from a control container. 4 figs.

Inventors:
Issue Date:
Research Org.:
Lockheed Martin Idaho Tech Co
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
675812
Patent Number(s):
5,821,424
Application Number:
PAN: 8-543,719
Assignee:
Lockheed Idaho Technologies Co., Idaho Falls, ID (United States) PTO; SCA: 440800; PA: EDB-99:003202; SN: 98002028015
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 13 Oct 1998
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; CONTAINERS; LEVEL INDICATORS; SOUND WAVES; MECHANICAL VIBRATIONS; LASER RADIATION; DOPPLER EFFECT; OPERATION

Citation Formats

Rodriguez, J.G. Method and apparatus for analyzing the fill characteristics of a packaging container. United States: N. p., 1998. Web.
Rodriguez, J.G. Method and apparatus for analyzing the fill characteristics of a packaging container. United States.
Rodriguez, J.G. Tue . "Method and apparatus for analyzing the fill characteristics of a packaging container". United States.
@article{osti_675812,
title = {Method and apparatus for analyzing the fill characteristics of a packaging container},
author = {Rodriguez, J.G.},
abstractNote = {A system is described for analyzing the fill characteristics of a container. A container having a filling material therein is positioned adjacent a sound generator. Sound waves from the generator are applied to the container, causing it to vibrate. A vibration detector is used to determine the amount of container vibration. A preferred vibration detector involves a laser vibrometer which applies a reference laser beam to the vibrating container. The reference beam is reflected off of the container to generate a reflected laser beam. The reflected beam experiences a Doppler frequency shift compared with the reference beam which is caused by container vibration. The Doppler shift of the reflected beam is then compared with standardized Doppler shift data from a control container. Repeated Doppler shift measurements may also be undertaken which are converted into a vibration profile that is compared with a standardized vibration profile from a control container. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}