如今，不建议将好/坏的决定留给风，而不仅仅是因为它很少会吹嘘实验室和工厂。与善与恶的可靠和迅速相比，它比以往任何时候都变得更加重要。
在消费品和资本产品行业中，任何产品的经济成功都取决于生产过程，成本和质量的优化程度。制造业的质量保证依赖于快速，健壮和自动化的测试方法。
可以通过分析组件，组件或最终产品的动态特性来检测结构缺陷。振幅，模式形状和固有频率的变化等特征是特征性质量标记。因此，可以在产品或组件级别上进行快速而自动的好/坏选择，并通过适当的测量，评估和对这些参数进行分类。
Compared to conventional sensors such as microphones or accelerometers, laser vibrometers are particularly suitable for many applications in the final inspection of production as they provide significant advantages. In addition to their large bandwidth and wide dynamic range, vibrometers’ ability to target with pinpoint precision and the non-contact measurement principle are crucial.
非接触意味着获得的数据不受测量方法的影响。由于与样本没有物理接触，因此集成变得更加容易。该技术不容易受到环境噪声等的影响，因为振动仪直接捕获了样品表面上的振动。易于校准，较低的维修费用和快速变更，可确保进一步降低运营成本。
Household Appliances and Medical Technology
激光振动仪可以识别电动驱动的医疗设备，家用电器或其在生产过程中产生不必要的振动和噪声的组件，以从生产线中删除。真空吸尘器，洗衣机，电动牙刷，用于医疗设备的电动机或牙科仪器就是一些例子。
通过100％测试的振动仪可以确认高级医疗产品（包括膜吸入系统）的适当功能。
Loccioni Group与世界上最大的洗衣机制造商密切合作已有40年了，并且是用于过程中应用程序和实验室的自动质量控制系统的开发商。该公司的Musa测试站（防音区域的测量单元）是一个全自动的交钥匙安装，用于洗衣机上的振动和噪声测试 - 该测试是在实验室中进行的。
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图1。洗衣机的测试（Loccioni）
Experience shows that reliable results cannot be obtained by conducting spot checks at random on selected systems. High-quality standard can be guaranteed only by conducting 100% testing on the finished products. Vibration tests are a good technique to differentiate good products from faulty ones.
因此，建议对家用电器进行振动分析。激光振动法已成为一种已建立的非接触式选择方法，用于在线测试。激光振动仪可以可靠地检测出诸如松动或故障组件或机器浴缸不平衡的缺陷。
汽车行业和机械工程
Laser vibrometers are already used extensively for manufacturing inspection in these areas. They are used to perform failure and noise analysis on components with moving parts including gear drives, injection valves, A/C systems, combustion engines, steering systems, adjusters and miniature drives, and also for material testing, e.g. on light bulbs or camshafts.
滚子轴承是大规模制造的高精度组件。SKF是世界市场的领导者，不断扩大其在制造和质量技术方面的领先优势。100％的制造辊轴承通过SKF噪声检查。
高效的测试系统对于实现几秒钟的目标周期时间至关重要。因此，SKF集团的测量技术中心（QTC - 质量技术中心）在2010年决定使用IVS传感器选择光学测量技术Polytec。
The signal quality, non-contact principle, and low operational costs which are a result of simple calibration, lower repair expenses, and quick sample changeover, are some of the advantages for SKF.
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Figure 2.滚子轴承（SKF）的测试
信息和微系统技术
在硬盘驱动器生产中，振动仪用作不良偏差的高度敏感探测器和其他精细结构的动态行为。气泡喷气打印机或DVD播放器的组件测试是另一个应用程序。
可以使用MSA Microsystem Analyzer或其他基于显微镜的振动仪在制造过程中测试微型散热器，微传感器和其他MEMS组件的动态和静态性能。
在许多MEM中，无法使用非破坏性方法直接测量的材料参数和关键几何形状可以从振动测量结果确定。其他示例包括确定MEMS压力传感器的膜厚度或用于可调IR过滤器的MEMS Fabry-Perot干涉仪的弹簧厚度。
The procedure can be fully automated: the structure to be examined is excited in broadband mode on an automatic probe station using a special probe card with a transparent electrode made of indium tin oxide (ITO) and an electrostatic stray field on the wafer. Alaser vibrometeris used to measure the mechanic vibrations stimulated in this manner. The measured data and known excitation signal are used to determine the frequency response function and selected resonance frequencies precisely.
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Figure 3.Fabry-Perot MEMS传感器（FHG ENAS）的自动测试
A MEMS model comprised of polynomials is adapted to the resonance frequencies through parameter adaptation. The desired geometry and material parameters are precisely calculated in this manner. Before starting the measurements, the polynomials can be extracted from the parametric FE simulations.
The calculations that are necessary during the series tests for parameter adjustment can be performed with great efficiency. The measurement for all devices on the wafer is completely automated. This approach is highly suitable for 100% inspection during MEMS fabrication.
此信息已从Polytec Ltd提供的材料中采购，审查和调整。亚博网站下载
For more information on this source, please visitPolytec Ltd.