

Founded Hangzhou Aihua Electronic Research Institute.
Developed and launched the integral sound level meter model AWA5610.
Manufactured Electroacoustic test instrument.
Launched noise statistical analyzer model AWA6218A/B andcumulative production of 8000 units.
Launched noise spectrum analyzer Class 1 model AWA6270.
Hangzhou Aihua Instruments Co. , Ltd 91官网. was established in xihu District Hangzhou.
Developed measurement microphones cartridges.
Developed digital signal processing technology and launched real-time noise spectrum analyzer model AWA 6291.
Aihua products started to export to Singapore market.
Launched environmental noise automatic monitoring system model AWA 6218J and multifunction sound level meter model AWA6228.
Launched environmental noise automatic monitoring system model AWA 6218J and multifunction sound level meter model AWA6228.
Moved to new workshop in Yuhang District Hangzhou.
Released the noise measurement software for smartphones supporting Android and iOS system and successfully developed AWA6256B+T triaxial vibration analyzer.
Identified as a provincial High-tech Enterprise R&D Center.
The new automatic test system for measurement microphones performance was successfully developed and put into use.
Successfully developed building acoustics test system
Successfully developed Acoustics array system.
The automatic test system for sound level meter performance was successfully developed and put into use.
Successfully developed sound level meter model AWA6292 based network technology and developed smart microphones and noise measurement cloud platform













