Vibration measurement at 2.5m range
15th July 2008
Source:
Armstrong Optical Ltd
The new LSV laser-interferometric vibrometer from SIOS Messtechnik GmbH, supplied in the UK by Armstrong Optical Ltd., is the ideal instrument for accurate, non-contact determination of temporal changes in the positions of objects or surfaces of arbitrary roughness. It detects mechanical vibrations at frequencies ranging from 0 to 500 kHz with subnanometer resolution.
These instruments have been designed around the industry proven SP-S Series laser-interferometric vibrometers. The working distance of the LSV-Series vibrometer can be adjusted continuously in a wide range by a zoom objective with a working distance of between 240mm and 2.5m.
The complete system consists of a compact fibreoptic-coupled sensor head, a modular electronics unit incorporating a HeNe laser, and various interfaces. The fiber-coupled interferometer converts motions along the optical axes into interference fringes that are transmitted to fast, high-resolution, demodulation electronics for processing. Operation and display of results employs a PC running specialized data-analysis software.
The modular nature of the system and the separate measurement head ensures that accurate and highly resolving measurements can be performed even in aggressive environments. The great strength of the system is its ability to make measurements over large distances from vibrating surfaces with low reflectivity.
The complete system consists of a compact fibreoptic-coupled sensor head, a modular electronics unit incorporating a HeNe laser, and various interfaces. The fiber-coupled interferometer converts motions along the optical axes into interference fringes that are transmitted to fast, high-resolution, demodulation electronics for processing. Operation and display of results employs a PC running specialized data-analysis software.
The modular nature of the system and the separate measurement head ensures that accurate and highly resolving measurements can be performed even in aggressive environments. The great strength of the system is its ability to make measurements over large distances from vibrating surfaces with low reflectivity.
Similar articles
More from Armstrong Optical Ltd
- Interferometer targets machine tool calibration 11th August 2015
- Sensor measures plastics parameters quickly & easily 19th August 2014
- New ultra-high resolution thermography camera 15th June 2012
- High performance Optical timing reference source 25th July 2011
Write a comment
No comments