© NMISA 2012 Status of Acoustics, Ultrasound and Vibration at the NMISA Ian Veldman 13 June 2012

© NMISA 2012 Recent and future developments Acoustics –Reciprocity calibration system in conformance with IEC : 2009 LSP1 & LSP2 Magnitude and phase –Acquired a commercial reciprocity calibration system to be implemented during 2012 Vibration –Extended low frequency capability down to 0,4 Hz –Developing a system for measuring transverse sensitivity of accelerometers in compliance with ISO –Designed an air-bearing exciter table. Performance validation to commence later this year

© NMISA 2012 Recent and future developments Ultrasound –Finalising the appointment of an Underwater Acoustics/Ultrasound metrologist –Re-establish the NMISA underwater Acoustic National Standard –Initiate a project plan to establish Ultrasound Power measurement standards at the NMISA

© NMISA 2012 Development & Comparison Activities Acoustics –Participation in CCAUV.A-K5 software validation project –CCAUV.A-K5 –APMP.AUV.A-S1 –Reciprocity calibration of LSP1 & LSP2 microphones

© NMISA 2012 Development & Comparison Activities Vibration –CCAUV.V-K2 –AFRIMETS.AUV.V-S2 (Pilot laboratory) –APMP.AUV.V-S1 –AFRIMETS.AUV.V-S3 –Primary calibration of accelerometers < 1 Hz –Low frequency air-bearing exciter table –Transverse sensitivity calibration of accelerometers (ISO )

© NMISA 2010© NMISA 2012 AFRIMET Activities Provided training for KEBS metrologist in Acoustics and Vibration Assist in arranging inter-laboratory comparison, AFRIMETS.AUV.V-S3

© NMISA 2010© NMISA 2012