Developments in optical strain gages suit extreme requirements

HBM has improved its K-OP optical strain gages (SGs) making them highly suitable for many more applications when compared to electrical SGs. They are, for example, ideally suited to material tests of new fiber composites with tests of up to 10 million load cycles with an alternating strain of ±5.000 µm/m now possible.

K-OP optical SGs are based on so-called fiber Bragg gratings which measure strain using pure optical techniques without the need for any electrical signals. This makes the optical SGs very suitable for use in explosive atmospheres, where electro-magnetic interference is present, or in high-voltage applications without problems. In addition, several optical SGs can be attached to a fiber, enabling the implementation of parallel measurements. Glass fiber lengths of several hundred meters are possible.

Using optical SGs for data acquisition and evaluation is very simple with a complete range of components available for all applications from HBM. These range from optical SGs with the appropriate accessories via interrogators to HBM’s data acquisition software catman®AP, which includes a special EasyOptics module for optical SGs.

Users receive a data sheet with optical strain gages that includes the important gage factor for each individual SG as tested by HBM to meet the latest VDI/VDE2660 requirements.

About HBM:
HBM (www.hbm.com) is a globally operating company specializing in test and measurement. HBM provides complete measurement solutions - from sensor to software - based on high quality products as strain gages, load cells, tranducers, signal conditioning and data acquisition electronics and software.

With development and manufacturing operations in Europe, America and Asia, HBM provides measurement solutions to a wide variety of companies in the automotive, aerospace, marine, rail transport, medical equipment, packaging, appliance, automation, and scale industries.

With a 50 year history of quality and precision products, the HBM name has become synonymous with "Measurement with Confidence.

For further information please contact:

1 Churchill Court, 58 Station Road, North Harrow, Middlesex, HA2 7SA UK
Tel: +44(0) 20 8515 6100
Fax: +44(0) 20 8515 6149
Web: www.hbm.com

February 2010

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