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本文描述了多路噪声测量系统的建立,该系统是一套以微机为中心的数字化系统,可实现对4路稳态宽带噪声的测量,测量参数是线性声压级和倍频带声压级.系统由微机、TMS320C30板、多路AD板、传感器、放大器等设备构成硬件系统,并通过编制C30板嵌入式软件和微机主控程序实现系统功能,在软件编制中结合数字信号处理技术,并结合硬件特性优化程序设计.本系统测量方法简易、快捷和精度高,在噪声测量领域具有较高实用价值.
This article describes the establishment of a multi-channel noise measurement system that is a microcomputer-centric digital system that enables the measurement of four steady-state broadband noises with linear sound pressure levels and octave sound pressure levels. System consists of computer, TMS320C30 board, multi-board AD board, sensors, amplifiers and other equipment constitute a hardware system, and through the preparation of C30 board embedded software and computer control program to achieve system functions, software integration in the digital signal processing technology, combined with Hardware Features Optimization Program Design. The system measurement method is simple, fast and high precision, has a high practical value in the field of noise measurement.