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Title: High-speed non-contact measuring apparatus for gauging the thickness of moving sheet material

Abstract

An optical measurement apparatus is provided for measuring the thickness of a moving sheet material (18). The apparatus has a pair of optical measurement systems (21, 31) attached to opposing surfaces (14, 16) of a rigid support structure (10). A pair of high-power laser diodes (20,30) and a pair of photodetector arrays (22,32) are attached to the opposing surfaces. Light emitted from the laser diodes is reflected off of the sheet material surfaces (17, 19) and received by the respective photodetector arrays. An associated method for implementing the apparatus is also provided.

Inventors:
 [1];  [2]
  1. San Ramon, CA
  2. Oak Ridge, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
872916
Patent Number(s):
US 6038028
Assignee:
Lockheed Martin Energy Research Corp. (Oak Ridge, TN)
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
high-speed; non-contact; measuring; apparatus; gauging; thickness; moving; sheet; material; optical; measurement; provided; 18; pair; systems; 21; 31; attached; opposing; surfaces; 14; 16; rigid; support; structure; 10; high-power; laser; diodes; 20; 30; photodetector; arrays; 22; 32; light; emitted; reflected; 17; 19; received; respective; associated; method; implementing; associated method; high-power laser; measurement apparatus; photodetector array; laser diodes; detector array; laser diode; support structure; material surface; power laser; light emitted; sheet material; opposing surfaces; measurement systems; measuring apparatus; material surfaces; moving sheet; opposing surface; optical measurement; /356/

Citation Formats

Grann, Eric B, and Holcomb, David E. High-speed non-contact measuring apparatus for gauging the thickness of moving sheet material. United States: N. p., 2000. Web.
Grann, Eric B, & Holcomb, David E. High-speed non-contact measuring apparatus for gauging the thickness of moving sheet material. United States.
Grann, Eric B, and Holcomb, David E. 2000. "High-speed non-contact measuring apparatus for gauging the thickness of moving sheet material". United States. https://www.osti.gov/servlets/purl/872916.
@article{osti_872916,
title = {High-speed non-contact measuring apparatus for gauging the thickness of moving sheet material},
author = {Grann, Eric B and Holcomb, David E},
abstractNote = {An optical measurement apparatus is provided for measuring the thickness of a moving sheet material (18). The apparatus has a pair of optical measurement systems (21, 31) attached to opposing surfaces (14, 16) of a rigid support structure (10). A pair of high-power laser diodes (20,30) and a pair of photodetector arrays (22,32) are attached to the opposing surfaces. Light emitted from the laser diodes is reflected off of the sheet material surfaces (17, 19) and received by the respective photodetector arrays. An associated method for implementing the apparatus is also provided.},
doi = {},
url = {https://www.osti.gov/biblio/872916}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}