Laser extensometer
The laser extensometer is a non-contact deformation measuring device that uses the diffuse reflection of laser beams on previously applied specimen markings to detect the change in length with high resolution.
The laser extensometer is used for non-contact measurement of strain or compression of test specimens under uniaxial load. Two measuring marks are applied to the sample before the test. The laser extensometer scans the measuring range with a visible laser beam and automatically determines the reference length. The positions of the measuring marks are recorded throughout the test. The software calculates the length change and elongation from the temporal progression.
Advantages
- Highest precision with large measuring range of 300 mm
- Accuracy class 0.5 and 1 according to ISO 9513
- Stable measuring signal with defined measuring marks, important especially for cyclic experiments, physical tests and especially suitable for long-term experiments
- No additional lighting necessary
- Lower susceptibility to external influences, e.g. changes in ambient light conditions
- Maintaining accuracy when the working distance changes (within a tolerance of ±25 mm)
- Non-contact measurements with measuring marks
- Individualised adhesive marking or marking via airbrush/edging possible
- No influence of any kind on the specimen, e.g. by transducer
- Easy integration into testing machine software
- Measurement in tensile, compression and bending tests
- Measurement in the range of smallest to largest elongations
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Contact:
Hegewald & Peschke
Meß- und Prüftechnik GmbH
Am Gründchen 1
01683 Nossen
Phone: +49 35242 445-0
Fax: +49 35242 445-111
E-Mail: info@hegewald-peschke.de
Internet: www.hegewald-peschke.com
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