Epsilon Extensometers and COD gauges

Extensometer Epsilon 3442 Miniature 

Very small and rugged, yet ultra-light weight, these transducers are widely used for testing small and delicate samples. Ideal for many biomedical tests, as well as for wire and thin sheet materials. Also great for low cycle fatigue testing where short samples are used. 

Specification:

• Gauge length:

3.0 mm 4.0 mm 5.0 mm 6.0 mm 8.0 mm 10.0 mm 12.0 mm

• Measuring range:

+20%/-10% +25%/-10% +50%/-5% +100%-5%

• Temperature range:

-2650С to 1000С -400С to 1000С -400С to 1500С -400С to 2000С -2650С to 2000С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max. 
• Output: 2 to 4 mV/V nominal, depending on model
• Linearity: 0.10% to 0.15% of full scale measuring range, depending on model


Options:

• Adapter kits to change gauge lengths
• Connectors to interface to nearly any brand test equipment
• Special coatings and stainless steel knife edges available for biomedical tests

 

Extensometer Epsilon 3542 

General purpose extensometers for axial tensile, compression, and cyclic testing.

Specification:

• Gauge length:

10.0 mm 12.0 mm 12.5 mm 25.0 mm 50.0 mm 80.0 mm

• Measuring range:

+20%/-10% +25%/-10% +50%/-10% +100%-10%

• Temperature range:

-2650С to 1000С -400С to 1000С -400С to 1500С -400С to 2000С -2650С to 2000С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: 2 to 4 mV/V, nominal, depending on model
• Linearity: 0.10% to 0.15% of full scale measuring range, depending on model


Options:

• Quick attach kit wireforms for large specimens
• Adapter kits to change gauge lengths
• Connectors to interface to nearly any brand test equipment
• Special coatings and stainless steel knife edges available for biomedical tests

 

 

Long gauge length extensometer Epsilon 3542L  

These transducers have been specially designed for long gage length applications where low level strain measurements are required.

Specification:

• Gauge length:

50.0 mm 100.0 mm 150.0 mm 200.0 mm 250.0 mm

• Measuring range:

±2.5 mm ±6.0 mm +12.0 mm/-6.0 mm

• Temperature range:

-2650С to 1000С -400С to 1000С -400С to 1500С -400С to 2000С -2650С to 2000С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: 2 to 4 mV/V, nominal, depending on model
• Linearity: 0.10% to 0.15% of full scale measuring range, depending on model

Options:

• Quick attach kit wireforms for large specimens 
• Adapter kits to change gauge lengths
• Connectors to interface to nearly any brand test equipment
• Special coatings and stainless steel knife edges available for biomedical tests.

 

 

 

  

Long gauge length extensometer Epsilon 3543

It is a uniquely designed unit that may be left on through specimen failure. These extensometers are widely used where long samples are required. They are ideal for testing steel re-bar, weld joints, and wire materials.

Specification:

• Gauge length:

50 mm 100 mm 150 mm 200 mm 250 mm

• Measuring range:

+25 mm +50 mm +100 mm

• Temperature range:

-400С to 1000С -400С to 1500С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: 2 to 4 mV/V nominal, depending on model
• Linearity: ≤0.15% of full scale measuring range

Options:

• Quick attach kit wireforms for large specimens 
• Spacers to change gauge lengths
• Connectors to interface to nearly any brand test equipment
• The 3543 is available with a twist option for use in applications where specimen twisting greater than 3° is expected. The 3543TW option can accommodate up to 15° of twist.

  
 

Bi-axial or axial averaging extensometer Epsilon 3560

A single integral unit provides simultaneous lateral (transverse) strain and averaged axial strain measurement. The unit is also available as an averaged axial extensometer alone.

Specification:

• Gauge length:

10 mm 25 mm 50 mm

• Measuring range:

% Axial strain Transverse measuring range
±5% 0.5 mm
±10% 1.0 mm

• Temperature range:

-2650С to 1000С -400С to 1000С -400С to 1500С -400С to 2000С -2650С to 2000С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: 2 to 4 mV/V, depending on model
• Linearity: ≤0.15% of full scale measuring range, depending on model

Options:

• Connectors to interface to nearly any brand test equipment

 
 

High elongation extensometer Epsilon 3800

Designed for plastics, rubber and elastomer testing, these extensometers have very long measuring ranges. Their unique design allows testing to failure and minimizes interaction with the sample.

Specification:

• Gauge length:

20 mm 25 mm 50 mm

• Measuring range:

+125 mm +250 mm +500 mm

• Temperature range:

-400С to 1000С

• Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.
• Output: Either 2 to 8 VDC, depending on model (at 10 VDC input) or 2 to 4 mV/V, nominal, selectable at time of order
• Linearity: 0.15% of full scale measuring range

Options:

• Can be provided with either:

  • High level outputs (approximately 2-8 VDC)
  • Output that mimic - strain gaged devices (2-4 mV/V nominal)

• 2 mV/V output for use with electronics designed for strain gaged sensors

 

 

Laser non-contact extensometers Epsilon LE-05 and LE-15

These extensometers are high precision non-contacting units for strain measurement in materials testing. They use a high speed laser scanner to measure the spacing between reflective tape strips on the sample. 

Спецификация:

• Measuring range:

Epsilon LE-05 Epsilon LE-15
8 to 127 mm 8 to 381 mm

• Resolution:

LE-05 LE-15
0.01 mm 0.01 mm

• Linearity:

LE-05 LE-15
±0.01 mm ±0.04 mm

• Repeatability:

LE-05 LE-15
±0.005 mm ±0.04 mm

• Scan Rate:

100 scans/second

• Scan Line Orientation:

Vertical

• Analog Output:

16 bit, ±10 VDC standard

• Power Input: 220 VAC 

 
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