Extensometer Slippage

Some of our customers are frustrated when they experience slippage of their strain gauge extensometers. Close examination of their extensometer knife-edges often reveals wear that has rounded the edge, increasing the likelihood of slippage. If you are experiencing extensometer slippage, take a close look at your knife-edges. For replacement parts, please contact your local Instron representative.


Note that the knife-edges are precision engineered to ensure an accurate gauge length, so we do not recommend that you attempt to sharpen the edges yourself.

Originally posted on August 01, 2014 , Updated On March 23, 2021