Consultative Committee for Acoustics, Vibration and Ultrasound CCAUV
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1 Consultative Committee for Acoustics, Vibration and Ultrasound CCAUV Dr. Takashi USUDA on behalf of Prof. Dr Joaquín Valdés CCAUV President and CIPM member (UNSAM Argentina) 25 th meeting of the CGPM
2 AUV in your daily life How Louis much? XIV Ultrasound Vibration Vibration 2
3 Main Areas Consultative Committee for Acoustics Ultrasound.. Vibration & shock.. Underwater acoustics. Comparison of pressure sensitivity using Pa standard microphones [2 Hz 40 khz]: hearing, machinery and environmental noise Comparison of ultrasonic power using W hydrophones [1 MHz 20 MHz]: diagnostics and therapy, cleaning, sterilization and food industry Comparison of acceleration using accelerometers [0.1 Hz 10 khz]: car and aeronautic m/sindustry, 2 health and safety issues Comparison of ultrasonic power using hydrophones [250 Hz 500 khz]: marine Wimaging, communication, mapping, climate studies Established in
4 Areas of priority and potential Acoustics Keep pace with clinical practices, objective audiology, synergy with industry for low cost robust sensor systems Ultrasound Support High Intensity Ultrasound Therapy for clinical practice, alternative cancer therapy and drug administration, validated methods for acoustic material properties Vibration & shock Machine safety, inertia navigation and dynamic measurements, MEMS accelerometers and gyros Underwater acoustics Noise pollution of marine environment, support off shore applications at deeper water 4
5 Interdisciplinary issues Acoustic thermometry to determine the Boltzmann constant via the speed of sound Materials metrology [1], Metrology and Testing [1] To use for materials metrology and material properties (e.g. elastographic imaging techniques) Vibration and seismology Long term observation of plate tectonics, earthquake detection and alarm system Ultrasound and chemistry, biochemistry To characterize liquid composition or evaluate protein solutions, molecular imaging, drug absorption Ultrasound and ionizing radiation Concepts of radiation dosimetry in ultrasound environment [1] Metrologia Special issue: Materials metrology, Ed. S. Bennett and J. Valdés 5
6 Stakeholder involvement NMIs and DIs, themselves precursor to other stakeholders e.g. regulators for pharmaceutical, occupational, traffic, etc. The International Electrotechnical Commission (IEC) TC29: Electroacoustics TC87: Ultrasonics The International Organization for Standardization (ISO) TC108: Mechanical vibration, shock and condition monitoring TC43/SC3: Underwater acoustics 6
7 Achievements MEMBERSHIP: KEBS (Kenya) obtained observer status CCAUV strategy revised in 2012 following the BIPM time schedule Consolidated planning of needed key comparisons RMO TC Chairs invited to the CCAUV 2012 and 2013, and to selected WG meetings 2 CCAUV comparison completed: Ultrasonic power (pilot PTB) Vibration acceleration (pilot PTB) Launched 4 CCAUV comparisons: Acoustics completed (pilot NPL) / standard microphone calibration Ultrasound in progress (pilot NPL) / hydrophone calibration Vibration completed (pilot PTB) / angular acceleration (supplementary comparison) Vibration in progress (pilot NIM) / low frequency acceleration complex sensitivity 7
8 Future Strategy CCAUV strategy to be revised by 2017 An analysis of impact cases will be carried out before the next meeting. Feedback from the CCAUV meeting 2013: The CCAUV strategic document provides a good basis for planning on a local scale and for the search for funding; Review of the CIPM MRA from the CCAUV perspective Close contact with industries, regulators 8
9 Thank you
10 Prof. Dr Joaquín Valdés CCAUV President Dr. Penelope Allisy Roberts Executive Secretary of the CCAUV Dr. Susanne PICARD Executive Secretary of the CCAUV 2010
11 Thank you
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