Infrared calibration development at Fluke Corporation Hart Scientific Division

A flat plate calibrator is one instrument used in calibrating infrared (IR) thermometers, primarily in the 8 - 14 μm band. One such family of flat plate calibrators is the 418X Precision IR Calibrator from Fluke Corporation Hart Scientific Division. This product is calibrated with a radiometric calibration. To support this radiometric calibration and its traceability, a number of developments have been made at Hart Scientific. These developments include the construction of a new IR calibration laboratory with radiometric traceability. This presentation discusses the research done to establish IR calibration capabilities. Among the topics discussed are the need for radiometric traceability for flat plate calibrators, the traceability chain to national laboratories included in radiometric calibrations at Hart Scientific, the development of blackbody cavity baths in Hart's IR calibration laboratory, and Hart Scientific's IR uncertainty budgets.

[1]  S. Standard.  GUIDE TO THE EXPRESSION OF UNCERTAINTY IN MEASUREMENT , 2006 .

[2]  A. Prokhorov,et al.  Spectral effective emissivities of nonisothermal cavities calculated by the Monte Carlo method. , 1995, Applied optics.

[3]  Leonard M. Hanssen,et al.  Infrared spectral emissivity characterization facility at NIST , 2004, SPIE Defense + Commercial Sensing.

[4]  F. Sakuma,et al.  Cavity emissivity of fixed-point blackbody , 2003, SICE 2003 Annual Conference (IEEE Cat. No.03TH8734).

[5]  Fumihiro Sakuma,et al.  Effective emissivities of black-body cavities with grooved cylinders , 1998 .

[6]  M. Battuello,et al.  Uncertainty Budgets for Calibration of Radiation Thermometers below the Silver Point , 2008 .

[7]  Frank Liebmann.  DETERMINING SIZE OF SOURCE FOR HANDHELD INFRARED THERMOMETERS – THEORY AND PRACTICE , 2007 .

[8]  D. R. Taubert,et al.  High-accuracy radiation thermometry at the National Metrology Institute of Germany, the PTB , 2003 .

[9]  A. Prokhorov,et al.  Monte Carlo method in optical radiometry , 1998 .

[10]  D. Dewitt,et al.  Theory and practice of radiation thermometry , 1988 .

[11]  Joel B. Fowler,et al.  A Third Generation Water Bath Based Blackbody Source , 1995, Journal of research of the National Institute of Standards and Technology.

[12]  Ortwin Struß.  Transfer Radiation Thermometer Covering the Temperature Range from −50 °C to 1000 °C , 2003 .

[13]  Leonard M. Hanssen,et al.  Comparison of Direct and Indirect Methods of Spectral Infrared Emittance Measurement | NIST , 2004 .

[14]  Leonard M. Hanssen,et al.  Effective emissivity of a cylindrical cavity with an inclined bottom: I. Isothermal cavity , 2009 .