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Title: Inspection system calibration methods

Abstract

An inspection system calibration method includes producing two sideband signals of a first wavefront; interfering the two sideband signals in a photorefractive material, producing an output signal therefrom having a frequency and a magnitude; and producing a phase modulated operational signal having a frequency different from the output signal frequency, a magnitude, and a phase modulation amplitude. The method includes determining a ratio of the operational signal magnitude to the output signal magnitude, determining a ratio of a 1st order Bessel function of the operational signal phase modulation amplitude to a 0th order Bessel function of the operational signal phase modulation amplitude, and comparing the magnitude ratio to the Bessel function ratio.

Inventors:
;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175187
Patent Number(s):
6836336
Application Number:
10/267,320
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
DOE Contract Number:  
AC07-99ID13727
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Deason, Vance A., and Telschow, Kenneth L.. Inspection system calibration methods. United States: N. p., 2004. Web.
Deason, Vance A., & Telschow, Kenneth L.. Inspection system calibration methods. United States.
Deason, Vance A., and Telschow, Kenneth L.. Tue . "Inspection system calibration methods". United States. https://www.osti.gov/servlets/purl/1175187.
@article{osti_1175187,
title = {Inspection system calibration methods},
author = {Deason, Vance A. and Telschow, Kenneth L.},
abstractNote = {An inspection system calibration method includes producing two sideband signals of a first wavefront; interfering the two sideband signals in a photorefractive material, producing an output signal therefrom having a frequency and a magnitude; and producing a phase modulated operational signal having a frequency different from the output signal frequency, a magnitude, and a phase modulation amplitude. The method includes determining a ratio of the operational signal magnitude to the output signal magnitude, determining a ratio of a 1st order Bessel function of the operational signal phase modulation amplitude to a 0th order Bessel function of the operational signal phase modulation amplitude, and comparing the magnitude ratio to the Bessel function ratio.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}

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Works referenced in this record:

UHF acoustic microscopic imaging of resonator motion
conference, January 2000


Direct imaging of traveling Lamb waves in plates using photorefractive dynamic holography
journal, November 1999


Ultrasonic imaging of subsurface objects using photorefractive dynamic holography
conference, November 2001

  • Deason, Vance A.; Telschow, Kenneth L.; Watson, Scott M.
  • International Symposium on Optical Science and Technology, SPIE Proceedings
  • https://doi.org/10.1117/12.449372