'Radiation conductance calibration system' using the radiation force balance method

摘要

At Advanced Industrial Science and Technology (AIST), we have been constructing "Ultrasonic power measurement system" for the purpose of establishment the ultrasonic power standard in Japan, and we also have a plan to disseminate the ultrasonic power standard in the near future. The construction of the measurement systems has been almost finished and we have estimated the measurement uncertainty of the system. In this paper, we will report the latest system situation and show the result of estimation for the "measurement uncertainty" of this system.