Intercomparative tests of calibration devices for radiant heat flux meters
SP in Sweden and the Fire Research Station (FRS) in England have performed an intercomparative calibration on four different radiometers, to investigate the differences between the two different calibration methods. The intercomparison was the first step in a tentative research project with the goal of establishing a common European system for the calibration of thermal radiation meters for fire research purposes. FRS performed the calibrations in an open configuration equipment against a reference thermopile radiometer, whilst SP used a semiclosed arrangement with a black body cavity as radiation source. The calibrations were made for two radiation flux ranges, 20 and 50 kW/m2, and with Gardon and Schmidt-Boelter type radiometers. The study shows that there is a difference in results of up to nearly 8 % in relative terms. As this difference is of the same order as the combined error limits of the calibrations, it could have been explained, had it been of a random nature. It seems, however, as if the difference is systematic.
Bibliographic Reference: EUR 14400 EN (1993) 42 pp., MF, ECU 4
Record Number: 199310751 / Last updated on: 1994-11-29
Original language: en
Available languages: en