Bilateral comparison on Luminous Responsivity

Project Description

It is intended to propose an intercomparison of luminous responsivity to PHORA TC as a EUROMET Bilateral Intercomparison. This intercomparison will be linked to the CIPM key comparison.

The comparison will be carried out through the calibration of two photometer heads and two filter radiometers. A description of the transfer standards is given in section 3 of the protocol.

The technical protocol has been drown up by the pilot and participating laboratories, following the main procedure applied in the CCPR-K3.b International comparison on luminous responsivity of 2001

Final Report 2007-08-22

The comparison has been completed and the results are available in the KCDB.

A bilateral comparison of illuminance responsivity scales between the UME and the IFA-CSIC was carried out, where the IFA-CSIC acted as the pilot and link to the key comparison CCPR-K3.b. The ratio of the measured illuminance responsivities (UME/IFA) was 1.0003 with expanded uncertainty of 0.0084 (k = 2) including the uncertainty of the comparison and the uncertainties of the realization of the scales.