Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Sources of Uncertainty in UV Radiation Measurements



Thomas C. Larason, Christopher L. Cromer


Increasing commercial, scientific, and technical applications involving ultraviolet (UV) radiation has led to the demand for improved understanding of the performance of instrumentaion used to measure this radiation. There has been an effort by manufacturers of UV measuring devices (meters) to produce simple, optically filtered sensor systems to accomplish the varied measurement needs. We address common sources of measurement errors using these meters. The uncertainty in the calibration of the instrument depends on the response of the UV meter to the spectrum of the sources used and its similarity to the spectrum of the quantity to be measured. In addition, large errors can occur due to out-of-band, non-linear, and non-ideal geometric or spatial response of the UV meters. Finally, in many applications, how well the response of the UV meter approximates the presumed action spectrum needs to be understood for optimal use of the meters.
Proceedings Title
2001 Measurement Science Conference
Conference Dates
January 18-19, 2001
Conference Title
Measurement Science Conference


calibration, error, radiometry, ultraviolet, uncertainty


Larason, T. and Cromer, C. (2001), Sources of Uncertainty in UV Radiation Measurements, 2001 Measurement Science Conference, [online], (Accessed May 25, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 2001, Updated February 17, 2017