arrow_back_ios

Main Menu

arrow_back_ios

Main Menu

arrow_back_ios

Main Menu

全息和波束成形的高级选项 - BZ-5635-BZ-5644

Additional capabilities for our array acoustics noise source location and mapping software: Acoustic Beamforming Type 8608, Acoustic Holography Type 8607 and Spherical Beamforming Type 8606.

img

全息和波束成形的高级选项 - BZ-5635-BZ-5644

expand_more
chevron_left
chevron_right
  • s wind turbines, trains and flyover moving-source beamforming

FOR ACOUSTIC HOLOGRAPHY

The capabilities of our noise source location software, Acoustic Holography Type 8607, can be extended with these optional additions. They all use a hand-held probe with two layers of microphones in conjunction with a positioning system that locates the probe in relation to the object under test.

  • Wideband Holography BZ-5644 is our patented calculation method that allows a single measurement at an intermediate distance to cover the combined frequency ranges of statistically optimized nearfield acoustic holography (SONAH) and beamforming – extending the higher frequency limit of holography
  • Proximal Holography BZ-5963 enables conformal noise‐mapping of transient events to create animated, 3D noise maps on a 3D model of the test object, using Brüel & Kjær’s equivalent source method (ESM) algorithm
  • Panel Contribution BZ-5640 quantifies the contributions to the total sound pressure level at the driver's ear from the various surfaces inside a vehicle, using a volume velocity source to establish the frequency response functions
  • Intensity Component Analysis BZ-5641 gives better understanding of the sound field inside cabins and other enclosed spaces, using a volume velocity source and operational measurements to map front source intensity, rear source intensity, scattered intensity, radiated intensity
  • In Situ Absorption BZ-5642 helps to map acoustical absorption of various panels to optimize interior trim and detect acoustic leaks

我们所有先进的 PULSE 噪声源识别软件的功能都可以通过这些可选的计算模块进行扩展。

通用模块

  • 以下内容适用于所有波束成形和全息后处理阵列声学软件:
  • 准稳态计算 BZ-5635
  • 瞬态计算 BZ-5636
  • 共形计算 BZ-5637
  • 音质指标 BZ-5638
  • 使用外部插件管理器 BZ-5652 创建、保存和运行自己的计算

用于声学波束成形

通过选配的计算模块,可扩展到球形波束成形 8606 和波束成形型 8608 的功能:

  • 对于由非相干源组成的对象,精细波束形成计算BZ-5639可以将噪声图的空间分辨率提高三到六倍。这种反卷积算法是与汽车行业一起开发的,用于风洞测量,并在风力涡轮机、火车以及高架桥移动源波束成形等众多户外应用中得到广泛应用。

用于声学全息软件

我们的噪声源定位软件 - 声学全息术 8607 的功能可以通过这些可选添加进行扩展。他们都使用带有两层麦克风的手持探头,并结合定位系统,用于确定探头相对于被测物体的位置。

  • 宽带全息软件BZ-5644是我们的专利计算方法,它允许在中间距离进行单次测量,以覆盖统计优化的近场声全息术(SONAH)和波束形成的组合频率范围,从而扩展了全息术的更高频率限制
  • BZ-5963 近场全息软件采用 Brüel & Kjær 的等效源法(ESM)算法,能够对瞬态事件进行共形噪声映射,在测试对象的3D模型上创建动画3D噪声图
  • 面板贡献BZ-5640使用体积速度源建立频率响应函数,量化车辆内各种表面对驾驶员耳朵总声压级的贡献
  • 强度分量分析 BZ-5641 软件使用体积速度源和操作测量来绘制前源强度、后源强度、散射强度、辐射强度,从而更好地了解机舱和其他封闭空间内的声场
  • 原位吸收BZ-5642有助于绘制各种面板的吸声图,以优化内饰并检测声泄漏
  •  

相关

相关服务