全面振动光学测量
在产品开发中，扫描式激光测振仪能可靠、精确地完成振动测试任务。振型和本征模式检测有助于解决从 NVH、声学和结构动力学到超声波分析、FEM验证和无损测试一切问题。
亮点
- 非接触式激光振动测量
- 全场测量，具有高空间分辨率
- 可配备笔记本电脑的紧凑型系统或经典的箱架式系统
- 开放式数据和控制接口，以适应具体应用
- 可以升级和扩展成 3D 系统
- 多种选配件和软件
模块化系统，适合各种振动测试需求
任何关于振动测试的疑难问题，Polytec扫描式激光测振仪均能帮您迎刃而解。PSV频率范围覆盖 DC~25 MHz，振动速度范围覆盖 0.01μm/ s -30 m/s。 氦氖扫描头光斑极小，测试精度高，适用于测量精密结构，它甚至能透过水或其它透明介质进行测试。
对于挑战性被测表面，如黑暗、生物、移动或旋转表面，我们推荐最新研发的已荣获国际专利技术的PSV QTec扫描式激光测振仪PSV QTec Scanning Vibrometer.
我们还提供笔记本电脑紧凑式或台式系统供用户选择，随着用户需求的不断增加，可随时将系统升级至3D系统。
如何用PSV Polytec扫描测振仪测量挠度形状，有5个简单步骤
配件和组件
Optical Accessories
PSV-G-500 Geometry Scan Unit
Integrated laser distance sensor to measure the sample geometry.
PSV-A-440 Optical Derotator
For axial measurement of rotating objects. Locks onto the rotation and allows measurements as if stationary up to 24,000 rpm.
PSV-A-410 Close-up Unit
For close-up measurements, particularly on small parts. Includes a set of close-up lenses for the video camera. Special PSV-A-CL-xxx Micro Scan Lenses for small shiny parts available.
PSV-A-CL-xxx Micro Scan Lenses
Optimized beam path for measurements of very small parts or mirror-like surfaces. Requires PSV-A-410 Close-up Unit.
PSV-A-HNeBF Helium-Neon Block Filter
Notch filter for improved laser spot visibility when measuring very small parts or mirror-like surfaces.
PSV-A-RLight Ring Light
Fiber optic ring light for illumination of small test objects. Requires PSV-A-410 Close-up Unit.
PSV-A-526 Front Window
Protects the scanning mechanism against dust, wind and acoustic excitation at high dB levels.
A-MIR-xxxx Mirror Sets
Polytec's mirror sets contain different sizes of mirrors to assist in the set-up of your measurement.
Tripods, Test Stands, Positioning Stages
VIB-A-T02 Tripod with Pan/Tilt Head
PSV-A-T18 Vertical Test Stand
Motorized positioning of PSV scanning head for small part testing.
Miscellaneous
PSV-A-013 System Cabinet
Ergonomic mobile workstation with storage for all parts and accessories.
PSV-A-560 Coherence Optimizer
Laser stabilization improves overall signal-to-noise ratio.
External Scanner Control
Allows for an additional control of the scanning mirrors by external voltage signals.
VIB-A-HEAD Headphones
Headphone with noise limiter to listen to the vibrometer signal.
PSV-A-430 Acoustic Gate Unit
Activates the gate input if a noise exceeds a certain threshold. Suitable for event trigger applications such as brake squeal measurements.
Scalable Automatic Modal Hammer SAM
Excitation of sample for experimental modal tests with repeatable force level. Broadly configurable and avoids double hits reliably.
A-RET-xxxx Retro-Reflective Supplies
Selection of sprays, tape, sheets and micro glass beads for improvement of signal to noise ratio when measuring uncooperative surfaces.
相关产品
PSV QTec 扫描式激光测振仪
PSV Qtec扫描式激光测振仪以无与伦比的超高光学灵敏度将全场扫描式振动测试提升至全新平。系统采用创新、拥有国际专利的QTec®技术，采用基于红外（SWIR）激光的多通道干涉测量法，确保任何被测表面均能获得可靠数据，测试带宽覆盖DC~25MHz。PSV QTec大大减少了测试时间—尤其适用于黑暗、生物、旋转或移动结构，获取被测结构的振型和特征模式，已广泛用于NVH、声学、结构动力学、超声、FEM验证和NDT测试。
PSV-A-440 Optical Derotator
The PSV-A-440 Optical Derotator enables non-contact vibration measurements on rotating parts with PSV Scanning Vibrometers. Fully characterize dynamics of rotating objects such as fans for consumer products and vehicles or turbines under operational conditions up to 24,000 RPM.
PSV Software
PSV软件是每个Polytec全场扫描式激光测振仪测试系统的核心。PSV软件功能强大，操作简单，迅速采集、显示和编辑振动测试数据，预安装于所有的PSV扫描式激光测振仪。PSV软件还用于所有的MSA显微式激光测振仪或基于工业机器人的自动化测振站RoboVib®。
PSV-500-3D 三维扫描式激光测振仪
PSV-500-3D三维扫描式激光测振仪，采用非接触式测试方法，高精度获取整个表面的三维振动特性。系统采用氦氖激光源，在反射良好的样品表面具有出色的信噪比，是小型样品和水下产品理想的振动测试工具。PSV-500-3D获取的振型和特征模态可以帮助客户解决从NVH、声学和结构动态问题到超声波分析、FEM验证、无损检测等所有振动难题，测试带宽覆盖DC~25MHz。
PSV QTec 3D 扫描式激光测振仪
PSV Qtec 3D扫描式激光测振仪以无与伦比的超高光学灵敏度将全场扫描式振动测试提升至全新平。系统采用创新、拥有国际专利的QTec®技术，采用基于红外（SWIR）激光的多通道干涉测量法，确保任何被测表面均能获得可靠数据，测试带宽覆盖DC~25MHz。PSV QTec大大减少了测试时间—尤其适用于黑暗、生物、旋转或移动结构，获取被测结构的振型和特征模式，已广泛用于NVH、声学、结构动力学、超声、FEM验证和NDT测试。
RoboVib
RoboVib®自动测振站将3D 全场扫描式激光测振仪和工业机器人相结合，可完成从复杂部件到完整车身的一切测量。所需时间和误差源显著减少，这尤其表现在试验模态分析中。因此，您可以在例如一两天的时间内全部完成车身测试，而在这之前，光准备工作都需要几个星期。