National Metrology Institute of Japan

Acoustics and Ultrasonics Section

Japanese version

(1)Research for development of an acoustic standard and the precise measurement technology based on the acoustic standard

-Maintenance and supply the acoustic standards, based on the JCSS system and the legal metrology system
-Expansion of frequency range for pressure calibration and free-field calibration of laboratory standard microphones
-Evaluating the effects of infrasound and of airborne ultrasound on the human hearing and body
-Development of an electroacoustic transducer corresponding to needs expansion of sound application, and research of measurement technology

-> Acoustic standard and traceability

(2)Research for development of ultrasonic standards

Calibration services of ultrasonic standard
-> Ultrasonic power
   Frequencies from 0.5 MHz to 20 MHz, ultrasonic power from 1 mW to 500 mW
-> Hydrophone sensitivity
   Frequencies from 0.5 MHz to 20 MHz at the step of 0.1MHz
-> Ultrasonic beam profile
   Frequencies from 0.5 MHz to 20 MHz

-> Ultrasonic power standard by using radiation force balance method
-> Ultrasonic pressure standard (Hydrophone sensitivity calibration)
Member
Section Chief Tsuneo Kikuchi e-mail:tsuneo.kikuchi
Senior Researcher Ryuzo Horiuchi
Senior Researcher Yoichi Matsuda @
Researcher Masahiro Yoshioka @
Researcher Hironobu Takahashi @
Researcher Takeyoshi Uchida
Researcher Keisuke Yamada
Technical staff Takeshi Fujimori
Assistant Yumiko Nita
Please attach "@aist.go.jp" to e-mail address.