Introduction:
The Long Travel Extensometer is a precise device for measuring strain in highly extensible materials such as elastomers, semi-rigid plastics and films.
Designed for use with electromechanical testing machine, and used to measure specimens elongation’s up to 800 mm.
The high elongation extensometer is designed to clamp directly onto to a specimen quickly and easily. It will adjust to incremental gauge lengths ranging from 10mm to 800mm.
The long travel extensometer will accommodate up to 800mm of clamp displacement and is specifically designed to permit testing the sample through rupture without damaging the extensometer or otherwise disrupting the test routine.
The long travel extensometer is based on a pair of carefully counterbalanced clamp assemblies which drive a photoelectric encoder through connecting cables. Both clamps move freely but any increase in the separation or differential motion will advance the encoder.
The upper and lower specimen clamps are separately counterbalanced and guided on a polished and ground shaft with linear bearings so that none of the extensometer’s weight is applied to the specimen.
Specification:
- Gauge length: 10mm, 20mm, 25mm, 50mm
- Extension measurement range: 10~800mm
- Resolution: 0.008mm
- Accuracy: better than ±0.5% of reading
