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Sound and Vibration Standards Group

The group develops and supplies precision measurement technology for airborne sound and basic measurement standards for environmental evaluation that is quiet, safe and secure. In addition, the group is developing widely-dynamic and micro-vibration precision measurement technology and triaxial vibration measurement technology in order to evaluate the reliability and human safety of accelerometers in machine engineering or product manufacturing fields.

Group's Research Theme

Fig.1

Microphone calibration system using liquid
column type sound pressure generator.

Development of evaluation method for microphone sensitivity in the infrasound frequency range

We are developing an evaluation method for microphone sensitivity in the infrasound frequency range below 1 Hz. This study contributes to the improvement of the infrasound monitoring network observing large-scale natural events such as volcanic explosions and tsunamis.

Fig.2

Laser interferometer low-frequency
vibration calibration system.

Reliability evaluation of low-frequency vibration and microvibration measurement

We are developing a calibration system for highly sensitive accelerometers and seismometers used for infrastructure health monitoring, earthquake observation, and so on.

Fig.3

Triaxial laser interferometry high-frequency
high-shock measuring device.

Development of triaxial accelerometer evaluation technology using high-frequency and high-intensity shock

We are developing an evaluation technology for triaxial accelerometers that contribute to material evaluation and impact measurement.

Staff Members

photo name field of expertise email address, home page
NOZATO
Group Leader
NOZATO, Hideaki 		High-frequency vibration standard, shock standard email addresshideaki.nozato[at]aist.go.jp
HIRANO HIRANO, Koto Low-frequency acoustic reliability evaluation email addresskoto.hirano[at]aist.go.jp
HORIUCHI HORIUCHI, Ryuzo Acoustic standard in general email addressryuzo.horiuchi[at]aist.go.jp
KOKUYAMA KOKUYAMA, Wataru High-frequency vibration standard, low-frequency vibration standard, angular velocity standard email addresswataru.kokuyama[at]aist.go.jp
SHIMODA SHIMODA, Tomofumi Low-frequency vibration standard, micro-vibration reliability evaluation email addresstomofumi.shimoda[at]aist.go.jp
TAKAHASHI TAKAHASHI, Hironobu Airborne ultrasound, acoustic standard email addressh.takahashi[at]aist.go.jp

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