Optical strain gauges

  • 05-Apr-2010 08:38 EDT

K-OP optical strain gauges from HBM offer advantages compared to electrical strain gauges. They are suited to material tests of fiber composites; tests with up to 10 million load cycles with alternating strain of ±5.00 µm/m are possible. The units are based on fiber Bragg gratings. As the strain is measured purely optically, an electric signal is not necessary. This makes use in explosive atmospheres with electromagnetic interference or even high-voltage applications possible without difficulty. Additionally, several optical strain gauges can be attached to a fiber, enabling implementation of parallel measurements. Glass fiber lengths of several hundred meters are possible.

HTML for Linking to Page
Page URL
Rate It
5.00 Avg. Rating

Read More Articles On

NRL scientists have demonstrated metallic spin filtering at room temperature using ferromagnet-graphene-ferromagnet thin film junction devices.
Industrial aluminum slabs are typically produced by blending small amounts of copper or manganese in a reservoir of molten aluminum that is rapidly cooled, a process known as direct-chill casting. Variations in the way these elements solidify can yield uneven results that weaken the final product.
Recently NASA researchers were officially cleared to begin formal feasibility studies on advanced Unmanned Aircraft System (UAS) concepts under NASA’s Convergent Aeronautics Solutions (CAS) project. The investigations, three in total, are expected to take between 24 and 30 months to complete.
On June 28, 2017, days ahead of the July 2017 U.S. Air Force light attack aircraft experiment, the Senate Armed Services Committee passed a preliminary vote for a proposed annual defense budget that included $1.2 billion for “a fleet of Light Attack/Observation aircraft.”

Related Items

Training / Education
Training / Education
Training / Education
Technical Paper / Journal Article
Technical Paper / Journal Article