Key Comparison on primary pressure calibration of laboratory standard microphones LS2P
Project Description
The key comparison on primary pressure calibration of laboratory standard microphones LS2P will be mirroring CIPM key comparison on the same subject, CCAUV.A-K6, which was completed in 2023.
The specific task of the comparison is to measure the magnitude and phase of the complex sensitivity of LS2P microphones at specified frequencies with primary means in accordance with the IEC 61094-2 standard.
The reported sensitivities and associated uncertainties are then supposed to be used for the calculation of the degrees of equivalence (DoE) between the participating NMIs/DIs.
The technical protocol can be downloaded here>>