Introduction
21
• A variety of knife edges allow the extensometer to be used with
different specimen shapes:
– Straight knife edge sets for round specimens. Kits are
available for standard, heavy duty, and extended length
straight knife edges.
– Three-point contact knife edge sets for flat specimens. Kits
are available for standard, heavy duty, and extended length
three-point contact knife edges.
• Specimen attachment kits offer a variety of extensometer mounting
options:
– Quick attachment springs are available in shapes that allow an
extensometer to easily clip onto a flat or round specimen.
– Elastic bands are available in different lengths to
accommodate different specimen dimensions. Elastic bands
should be used at room temperatures.
– Metal extension springs are available in different lengths to
accommodate different specimen dimensions. Metal springs
can be used over a range of temperatures.
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