skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultrasonic thickness measuring imaging system and method

Abstract

This invention is comprised of an ultrasonic thickness measuring and imaging system in which an ultrasonic probe for measuring thickness of an object, such as a wall of tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area of the tube wall and representing one pixel of the pictorial map. In the pictorial map ofmore » tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.« less

Inventors:
; ; ;
Publication Date:
Research Org.:
Knolls Atomic Power Lab., Schenectady, NY (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5030659
Patent Number(s):
PATENTS-US-A7565524
Application Number:
ON: DE92017007; PPN: US 7-565524
Assignee:
Dept. of Energy
DOE Contract Number:  
AC12-76SN00052
Resource Type:
Patent Application
Resource Relation:
Patent File Date: 10 Aug 1990
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 47 OTHER INSTRUMENTATION; REACTOR COOLING SYSTEMS; NONDESTRUCTIVE TESTING; THICKNESS GAGES; DESIGN; COMPUTERIZED CONTROL SYSTEMS; CORROSION; HYDRAULICS; INVENTIONS; STEAM GENERATORS; THICKNESS; TUBES; ULTRASONIC TESTING; ACOUSTIC TESTING; BOILERS; CHEMICAL REACTIONS; CONTROL SYSTEMS; COOLING SYSTEMS; DIMENSIONS; FLUID MECHANICS; MATERIALS TESTING; MEASURING INSTRUMENTS; MECHANICS; ON-LINE CONTROL SYSTEMS; ON-LINE SYSTEMS; REACTOR COMPONENTS; TESTING; VAPOR GENERATORS; 220200* - Nuclear Reactor Technology- Components & Accessories; 440800 - Miscellaneous Instrumentation- (1990-)

Citation Formats

Bylenok, P J, Patmos, W M, Wagner, T A, and Martin, F H. Ultrasonic thickness measuring imaging system and method. United States: N. p., 1990. Web.
Bylenok, P J, Patmos, W M, Wagner, T A, & Martin, F H. Ultrasonic thickness measuring imaging system and method. United States.
Bylenok, P J, Patmos, W M, Wagner, T A, and Martin, F H. 1990. "Ultrasonic thickness measuring imaging system and method". United States.
@article{osti_5030659,
title = {Ultrasonic thickness measuring imaging system and method},
author = {Bylenok, P J and Patmos, W M and Wagner, T A and Martin, F H},
abstractNote = {This invention is comprised of an ultrasonic thickness measuring and imaging system in which an ultrasonic probe for measuring thickness of an object, such as a wall of tube, a computer for controlling movement of the probe in a scanning pattern within the tube and processing an analog signal produced by the probe which is proportional to the tube wall thickness in the scanning pattern and a line scan recorder for producing a record of the tube wall thicknesses measured by the probe in the scanning pattern. The probe is moved in the scanning pattern to sequentially scan circumferentially the interior tube wall at spaced apart adjacent axial locations. The computer processes the analog signal by converting it to a digital signal into a multiplicity of thickness points with each falling in one of a plurality of thickness ranges corresponding to one of plurality of shades of grey. From the multiplicity of quantified thickness points, a line scan recorder connected to the computer generates a pictorial map of tube wall thicknesses with each quantified thickness point thus being obtained from a minute area of the tube wall and representing one pixel of the pictorial map. In the pictorial map of tube wall thicknesses, the pixels represent different wall thicknesses having different shades of grey.},
doi = {},
url = {https://www.osti.gov/biblio/5030659}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}