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。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全场振动测量系统的核心。这个全面的软件包可以快速、简单地获取、显示和编辑用所有PSV扫描测振仪、用于微观观察的MSA微系统分析仪系列或自动结构测试站RoboVib®收集的振动测量数据。
PSV-500-3D 三维扫描式激光测振仪
PSV-500-3D扫描测振仪以可靠和精确的方式测量研究和产品开发中的三维动态。其可见的氦气激光器在反射良好的样品表面提供了出色的信噪比，是小型样品和水下的理想选择。检测到的偏转形状和特征模式可以帮助您解决从NVH、声学和结构动力学问题到超声分析、有限元验证和无损检测的所有问题。
PSV QTec 3D 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。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
通过结合3D扫描测振仪和工业机器人，RoboVib®形成了一个自动测试站，用于测量从复杂部件到整个车体的一切。在实验模态分析中，大大减少测试时间和费用以及上市时间。例如，对一个车体进行全面的360°测试，只需一两天和一夜的时间，而不是传统测试装置的几周准备时间。