NEW GEOMETRY SCAN UNIT FOR POLYTEC SCANNING VIBROMETERS
10 June 2006 - POLYTEC GMBH

The new revolutionary Geometry Scan Unit for the PSV-400 and PSV-400-3D
Scanning Vibrometers opens up completely new opportunities for the analysis of
structural vibrations.

Polytec Laser Doppler Vibrometers are used to precisely measure mechanical
vibrations, quickly, easily and free from mass load, cross-talk or feedback problems.

They operate on the Doppler principle, measuring back-scattered laser light from a
vibrating structure, to determine its vibrational velocity and displacement.
The new laser-based Geometry Scan Unit acquires 3D geometry data from test
objects which are subsequently examined with the Laser-Doppler Method on the
sample points of the measured grid. The Geometry Scan Unit is attached to the
measurement head of the Scanning Vibrometer and uses the same optical path as
the vibrometer measurement beam. The Geometry Scan Unit provides a 3Dgeometry model of the test structure within minutes and is extremely useful when no numerical geometry data are available.

Scanning Vibrometry offers all the advantages of a laser vibrometer together with
speed, ease of use, laser positioning accuracy and comprehensive data processing
in a single automated, turnkey package. Users get a very quick, easily understood
and accurate visualization of a structure's vibrational characteristics without the
inconvenience of attaching an array of transducers.

A Scanning Laser Dopppler Vibrometer includes a compact scanning head, a data
management system and powerful software for control of the scanners, data
processing and display.

The PSV-400 Scanning Vibrometer measures out-of-plane vibrations and is
designed for testing structures in the mm2 to several m2 range covering vibration
frequencies up to 20 MHz and vibration velocities up to 10 m/s.

The PSV-400-3D Scanning Vibrometer measures the 3D vibration vectors and
allows a clear separation of the out-of-plane and in-plane components of the motion.
Scanning Vibrometer Systems are used for applications in the automotive, aviation
and aerospace industries, on electrical appliances or machines, and for research
and development projects.

Polytec GmbH is providing world class high-tech solutions for the microstructure,
data storage, automotive, aerospace, transportation, steel industry, mechanical
engineering and scientific research markets for decades. Polytec is known
throughout the high-tech world for its leadership in the design and manufacture of
laser-based vibration, speed & length measurement instruments.
Global sales offices are located throughout Europe, the United States and Japan.
More information can be found at www.polytec.com

http://www.polytec.de

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