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Strain gauge clip-on extensometer

Clip-on extensometer based on strain gauges Download
Max. measurement range
  • 25 mm
Temperature range
  • Ambient temperature
  • Up to 250°C
Material
  • Metals
  • Plastics
  • Fiber-reinforced composites

Strain gauge clip-on extensometer

Strain gauge clip-on extensometers are manual clip-on extensometers, that are clamped to the specimen. With various preset gauge-lengths they are suitable for use on metal and plastic specimens.

  • Measuring systems possess excellent linearity, providing reliable test results.
  • Lightweight, miniaturized construction, ideal for short specimens.

Advantages & features

  • Excellent linearity for reliable test results.
  • High resolutions enable measurement of very small deformations during test.
  • Lightweight, miniaturized construction, ideal for specimens with small parallel length.
  • Initial gauge length can optionally be reset from 10 to up to 100 mm using extension pieces (does not apply to Type DMS Length 1).
  • Temperature-resistant measurement systems for use from -50°C to +200°C.
  • Extensometers for two-sided measurement of specimen deformation, enabling exact determination of Young's modulus and engineering elastic limit.
  • Variable measurement options are possible on extensometers with 2 separate measurement systems; individual signals or mean-value signal can be displayed.
  • While attached to the specimen the extensometer is prevented by limit stops from exceeding the measurement travel and protected in the event of specimen break (Type DMS Length 1 only).

Extension at a glance

Extension at a glance

Description of application
Strain gauge length 1
Strain gauge length 2
Strain gauge length 3
Strain gauge length 4
Strain gauge length 5
Type 2002-2
Strain gauge, width
Strain gauge biax 2501-2

Description of application

The DMS Length 1 extensometer is intended for fixed gauge-lengths L0 = 25 mm and L0 = 50 mm with a measuring range of 25 mm.

Extensometer types DMS Length 2, DMS Length 3 and DMS Length 4 are intended for fixed gauge-lengths L0 = 20 mm and L0 = 10 mm with a measurement travel of 2 mm in the tensile direction and 1 mm in the compression direction.

The DMS Length 5 is a double-sided clip-on extensometer with measurement systems delivering two individual signals. It is intended for fixed gauge-length L0 = 10 mm with measurement travel of 1.5 mm in the tensile and compression directions.

DMS Length 3, DMS Length 4 and DMS Length 5 are suitable for use in temperature chambers. DMS Length 5 is also suitable for use with HCCF.

Strain gauge length 1

This clip-on extensometer is designed for fixed gauge lengths L0 = 25 mm and L0 = 50 mm with a measurement range of 25 mm.

While attached to the specimen the extensometer is prevented by limit stops from exceeding the measurement travel and protected in the event of specimen break.

This extensometer is not suitable for temperature chambers or compression or flexure tests.

Strain gauge length 2

This inductive clip-on extensometer is intended for fixed gauge lengths L0 = 20 mm and L0 = 10 mm with a measuring range of 2 mm in the tensile and 1 mm in the compression direction.

The extensometer is not suitable for use in temperature chambers or for tests up to break.

Strain gauge length 3

This inductive clip-on extensometer is intended for fixed gauge lengths L0 = 20 mm and L0 = 10 mm with a measuring range of 2 mm in the tensile and 1 mm in the compression direction.

This extensometer is specifically designed for use in temperature chambers. It is not suitable for tests up to break.

Strain gauge length 4

This is a double-sided clip-on extensometer with the measuring systems connected in parallel. It is intended for fixed gauge lengths L0 = 20 mm and L0 = 10 mm with a measuring range of 2 mm in the tensile and 1 mm in the compression direction.

This extensometer is suitable for use in temperature chambers. It is not suitable for tests up to break.

Strain gauge length 5

This is a double-sided clip-on extensometer with measuring systems delivering two individual signals. It is intended for fixed gauge-length L0 = 10 mm with measurement travel of 1.5 mm in the tensile and compression directions.

This extensometer is suitable for use with the HCCF and in temperature chambers. It is not suitable for tests up to break.

Type 2002-2

This is a double-sided clip-on extensometer with measuring systems delivering two individual signals. It is intended for fixed gauge-lengths L0 = 20 mm with measurement travel of 2 mm in the tensile direction and 1 mm in the compression direction.

Suitable for use in temperature chambers; satisfies ISO 6892-1:20117 Annex G. Not suitable for tests up to break.

Strain gauge, width

This transverse strain extensometer is designed for use in connection with sensor arm extensometers or without extensometer. It is intended for fixed specimen widths B0 = 20.5 mm ... B0 = 16.5 mm. The measurement displacement is 4 mm.

  • For determination of Poisson’s ratio on fiber-reinforced composite materials to ISO 527-1.
  • Selection of different probes for adaptation to the specimen dimensions.

Strain gauge biax 2501-2

The 2501-2 biax clip-on-extensometer can be used specifically for determining the change in length and width of specimens made of fiber-reinforced composites or metal.

This clip-on extensometer is suitable for determining the in-plane shear strength (IPS) and for determining Poisson's ratio.

With a wide temperature range of -70 ... +175 °C the strain gauge-based clip-on extensometer is particularly suitable for use in temperature chambers.

  • High temperature range of -70 ... +175 °C
  • For determination of the change in length and width of metals and fiber-reinforced composites
  • Initial gauge length 25 mm

Technical overview

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Downloads

Name Type Size Download
  • Product information: Strain gauge clip-on extensometer PDF 451 KB
  • Product information: Biaxial strain gauge clip-on extensometer PDF 435 KB

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