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Author: howard yoon

Displaying records 41 to 50 of 121 records.
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41. Comparison of the NIST radiance temperature scale with the detector-based radiance temperature scale from 1200 K to 2800 K
Published: 1/1/2004
Authors: David W Allen, George P Eppeldauer, Charles E Gibson, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104294

42. Methods to reduce the size-of-source effect in radiation thermometers
Published: 1/1/2004
Authors: David W Allen, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104296

43. Portable LED-illuminated radiance source
Published: 1/1/2004
Authors: David W Allen, G Dezsi, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104297

44. Temperature determinations of the Ag and Au-freezing points using a detector-based radiation thermometer
Published: 1/1/2004
Authors: David W Allen, Steven W Brown, George P Eppeldauer, Charles E Gibson, Maritoni Abatayo Litorja, Keith R Lykke, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104295

45. The realization and the dissemination of the detector-based kelvin
Published: 1/1/2004
Authors: David W Allen, Steven W Brown, George P Eppeldauer, Charles E Gibson, Maritoni Abatayo Litorja, Keith R Lykke, Robert D. Saunders, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104293

46. Advances in Radiometry for Ocean Color
Published: 11/10/2003
Authors: Steven W Brown, D K Clark, Bettye C Johnson, Howard W Yoon, Keith R Lykke, S Flora, M Feinholz, N Souaidia, C Pietras, Thomas C Stone, M Yarbrough, Y S Kim, R Barnes, J Mueller
Abstract: Organic materials in the oceans have spectral signatures based on their light-scattering properties. These optical properties are related to bio-physical and bio-chemical data products, such as the concentration of phytoplankton chlorophyll-{alpha} ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840030

47. Thermal Imaging of Metals in a Kolsky-Bar Apparatus
Published: 10/1/2003
Authors: Howard W Yoon, D Basak, Richard L. Rhorer, Eric Paul Whitenton, Timothy J Burns, Richard Joel Fields, Lyle E Levine
Abstract: For materials testing at elevated temperatures, we describe the design and the development of a resistively heated Kolsky-bar apparatus. The temperature of the sample is determined by non-contact thermometry and the spatial temperature gradients in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841727

48. Spectral Radiance Comparisons of Two Blackbodies with Temperatures Determined Using Absolute Detectors and ITS-90 Techniques
Published: 9/1/2003
Authors: Howard W Yoon, Charles E Gibson, J L Gardner
Abstract: For calibrations of spectral irradiance standards, a high-temperature blackbody (HTBB) is used as a source of spectral radiance or irradiance as derived from Planck's radiance law. The temperature of such a blackbody can be determined using radiance ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841679

49. The Development and Characterization of an Absolute Pyrometer Calibrated for Radiance Responsivity
Published: 9/1/2003
Authors: David W Allen, Robert D. Saunders, Bettye C Johnson, Charles E Gibson, Howard W Yoon
Abstract: The International Temperature Scale of 1990 (ITS-90), for temperatures above the freezing temperature of silver, is defined with pyrometers which rely upon spectral radiance ratios to one of the silver, gold or copper freezing temperature blackbodies ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841673

50. A Method for Testing the Spectral Responsivity of Infrared Cameras Using Tunable Lasers
Published: 8/1/2003
Authors: Joseph Paul Rice, Keith R Lykke, Howard W Yoon
Abstract: We are developing a technique for accurately measuring spectral responsivity functions of infrared cameras using tunable lasers. We present preliminary results for uniform scenes where tunable infrared lasers illuminate an integrating sphere, diffus ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841716



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