Universal multi-channel acoustic measurement and analysis system

通用多通道声学测量和分析系统

• 批准号: 359235-2008
• 负责人: Hodgson, Murray
• 金额: $ 2.32万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=364754
• 关键词: Universal; multi; channel; acoustic; measurement

The equipment requested is a portable, universal, multi-purpose, acoustical measurement and analysis system with sound-intensity measurement capability and multi-purpose analysis software.  Software options will allow sound-level-meter functionality, real-time and FFT analysis, sound-intensity measurement, building-acoustics analysis, transfer-function analysis, and reverberation time determination using pseudo-random noise signals.  This system will give the UBC Acoustics & Noise Research Group a reliable, portable, state-of-the-art measurement and analysis capability with greatly improved functionality over existing, obsolete equipment.  It will support all current and future research, including room sound-field characterization, measurement of the impulse response of rooms, measurement of the insertion loss of ventilators and noise-control measures in 'green' buildings,  and measurement of the effectiveness of active-noise control systems.  It will form the basic equipment for a UBC/BCIT green-roof sound-transmission-measurement facility currently being planned.       The acoustical environment in a workroom has a direct effect on the health, well-being and productivity of the workers.  The direct and indirect socio-economic costs of such problems can be enormous.  'Green' building is essential to world sustainability.  'Green' buildings have particular acoustical problems which lead to great occupant dissatisfaction.  The problems must be investigated and resolved.  'Green' roofs have potential for noise control that must be investigated.  Noise control traditionally involves passive methods.  The future of noise control involves active methods.  The proposed research will provide the knowledge, predictive tools and noise-control measures to allow the acoustical environment in workrooms to be optimized at the design stage.

所要求的设备是一种便携、通用、多用途、具有声强测量能力和多用途分析软件的声学测量分析系统。软件选项将允许声级计功能、实时和FFT分析、声强测量、建筑声学分析、传递函数分析以及使用伪随机噪声信号确定混响时间。该系统将为UBC声学与噪声研究小组提供可靠，便携，最先进的测量和分析能力，大大改善了现有过时设备的功能。它将支持所有当前和未来的研究，包括房间声场特性、房间脉冲响应的测量、通风机插入损耗的测量和“绿色”建筑中的噪声控制措施，以及主动噪声控制系统有效性的测量。它将构成目前正在规划的UBC/BCIT绿色屋顶声音传输测量设施的基本设备。工作室的声学环境对工人的健康、福祉和生产力有直接影响。这些问题的直接和间接社会经济代价可能是巨大的。“绿色”建筑对世界的可持续发展至关重要。“绿色”建筑有特殊的声学问题，这导致了居住者的极大不满。这些问题必须加以调查和解决。“绿色”屋顶具有控制噪音的潜力，必须加以研究。传统上，噪声控制涉及被动方法。未来的噪声控制包括主动的方法。拟议的研究将提供知识、预测工具和噪声控制措施，使工作室的声学环境在设计阶段得到优化。