Real-time electrical substitution in radiometry

Mihai Simionescu; Felicia Ionescu

doi:10.1117/12.221426

26 September 1995 Real-time electrical substitution in radiometry

Mihai Simionescu, Felicia Ionescu

Proceedings Volume 2550, Photodetectors and Power Meters II; (1995) https://doi.org/10.1117/12.221426
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

While in the low power range, cryogenic electrical substitution (ESR) is a must when it comes to establish reference radiant power (flux) scales, for powers from 100 mW up, this technique is much less feasible. Therefore, we tried to elaborate a method and an appropriate radiometer design intended to minimize the inherent uncertainties associated with ambient temperature electrical substitution, i.e., those generated by the spatio-temporal nonequivalences. The paper describes the method and the solutions we thought might lead to the minimization of these uncertainties.

Citation Download Citation

Mihai Simionescu and Felicia Ionescu "Real-time electrical substitution in radiometry", Proc. SPIE 2550, Photodetectors and Power Meters II, (26 September 1995); https://doi.org/10.1117/12.221426

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