China Aviation Scientific Research System High Sound Level Meter Verification Device Appraisal

[China Instrument Network Instrument R&D] Recently, the loudness level measuring instrument verification device undertaken by the 102nd Institute of China Aerospace Science and Technology Corporation passed the appraisal of key projects of the “Eleventh Five-Year Plan” for scientific research on military defense measurement.

(Image from the Internet, invaded)

Experts agreed that the project is technically difficult, the principle of calibration is novel, and the innovation is significant. It has independent intellectual property rights and the comprehensive technical level has reached the international advanced level. The upper limit of 150 dB sound level calibration has reached the international advanced level.

Since the establishment of the project, 102 young technical backbones have organized R&D teams. They have always insisted on independent research and development of independent innovation. Through scientific demonstration, rigorous calculations, meticulous design, and multi-disciplinary and multi-professional crossover and integration, they have taken the lead in introducing innovations in the international community. The dual-resonance sound wave amplitude-phase control high-intensity standard source generation method increases the upper limit of sound level calibration from 120 decibels to 150 decibels.

The successful development of the project provided the necessary technical support and knowledge reserves for the airborne sound-related measurement and testing tasks, laying the foundation for the subsequent rapid development of airborne sound measurement.

(Original Title: China Aerospace Science and Technology Corporation develops a high-strength level meter verification device that has reached the international advanced level)