The project is a follow-up of the completed EUROMET project 294 which covered tests of software for the pressure reciprocity calibration of laboratory standard microphones. In addition to the EUROMET project 294, the correction for radial wave motion in the cylindrical couplers at higher frequencies will be taken into account. A number of representative data files both for LS1 and LS2 microphones will be developed covering the range of coupler dimensions and microphone parameters observed in practical calibrations. Additionnally, test configurations with diameters differing from those of the micriphone's diagrams will be investigated and the results will be proven with resl measurements.
The coordinator will provide the data files which are then tested and accepted by the partners. A final report will contain a description of the calculation procedures