The 3542L long gauge length axial extensometers feature a dual flexure design that makes them rugged and insensitive to vibrations. They are designed for testing a wide variety of materials including ceramics, metals, plastics, and composites.
The Model 3542L is equipped with quick attach kit that enables the extensometer to be mounted on the test specimen. The quick attach kit can be removed, enabling the extensometer to be mounted on the specimen with rubber bands and springs.

Features

• May be left on through specimen failure.

• Full bridge, 350 ohm strain gaged design for compatibility with nearly any test system.

• All models can measure in both tension and compression and can be used for cyclic testing.

• Mechanical overtravel stops in both directions.

• Standard quick attach kit allows quick mounting to specimens.

• Hardened tool steel knife edges are easily replaced. A spare set comes with every extensometer.

• High and low temperature options extend operation from as low as -270 °C (-454 °F) to +200 °C (400 °F).

• Replaceable arms and spacers for ease of repair. This also allows changing the gauge length for different test requirements.

• Rugged, dual flexure design for strength and improved performance. Much stronger than single flexure designs, this also allows cyclic testing at higher frequencies.

• Includes high quality foam lined case