Extensometers and Transducers

—Designed for labs that need fast, repeatable specimen and gauge length changes, with gauge length set automatically on mounting
—Metric Gauge Lengths (millimeters): 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 100
—English Gauge Lengths (inches): 1.000, 1.400, 1.500, 2.000, 2.500, 3.000, 4.000
—Measuring ranges up to +50mm or +2.000 inches available, with a standard -5mm or -0.200 inch minimum
—Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max
—Output: 2 to 4 mV/V, nominal, depending on model
—Linearity: less than 0.15% of full scale measuring range
—Meets existing ASTM class B-1 and applicable ISO 6892-1 and 527 series requirements for accuracy

— Designed for test applications with small samples, or where a low-profile extensometer is required
— Metric Gauge Lengths (millimeters): 3, 4, 5, 6, 8, 10, 12, 12.5, 20, 25, 50
— English Gauge Lengths (inches): 0.250, 0.300, 0.500, 0.640, 1.000, 2.000
— Extensions up to 12.5mm or 0.500 inches available
— Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max
— Output: 2 to 4 mV/V, nominal, depending on model
— Linearity: less than 0.15% of full scale measuring range
— Meets existing ASTM class B-1 and ISO 9513, class 0,5 requirements for accuracy

— Available Gauge Lengths: 10mm, 12.5mm, 25mm, 35.6mm, 50mm, 0.5″, 0.64″, 1.0″, 1.4″, 2″
— Extension: +/- 5, 10 , 20, 25%, +50%/- 10%, and +100%/-5%
— 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
— Meets existing ASTM class B-1 and ISO 9513, class 0,5 requirements for accuracy

— Gauge Length: 100mm (4″)
— Travel: 500mm (2″) or 100mm (4″)
— 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
— Includes quick attach kit and various knife edges for flat and round specimens
— May be left on through specimen failure. The unit is designed so that the two halves of the extensometer come apart to prevent damage at specimen failure
— Full bridge, 350 ohm strain gauged design for compatibility with nearly any test system
— All standard units meet existing ASTM class B-1 and ISO 9513, class 0,5 requirements for accuracy
— Hardened tool steel knife edges are easily replaced. A spare set comes with every extensometer

— 0 to 1 inch diameter/width specimen sizes
— Travel: +/- 0.02″, +/- 0.05″, +/-0.1″
— Linearity: 0.15% of full scale measuring range
— Self supporting on sample
— Mounts directly to sample with integral clip springs
— May be left on through specimen failure
— All models will measure both positive and negative displacements
— All standard units meet existing ASTM class B-1 and ISO 9513, class 0,5 requirements for accuracy

— Testing Travel: 700mm (27.5″)
— Specimen Thickness: 0.2 to 10mm (0.008″ to 0.39″)
— Gauge Length: Adjustable between 20 to 80mm (0.79″ to 3.15″)
— Resolution: 0.025mm (0.001″)
— Optional High Resolution: 0.005mm (0.0002″)

— Testing Travel: 1100mm (43.3″)
— Specimen Thickness: 0.2 to 10mm (0.008″ to 0.39″)
— Gauge Length: Adjustable between 20 to 80mm (0.79″ to 3.15″)
— Resolution: 0.025mm (0.001″)
— Optional High Resolution: 0.005mm (0.0002″)

Deflection is measured with a single arm with an attached spherical contact tip. The magnetic base furnished with the gauge can be mounted to the desired reference surface, whether flat or round. The tip can then be positioned to measure the deformation encountered during the test. The upper arm exerts a small spring force against the specimen, which is sufficient to allow dynamic cyclic testing if desired, yet light enough in force to avoid influence on the test. These units come standard with the arm set to measure downward deflections when oriented in the upright position. They can be used upside down or in any orientation.

— Travel ranges of 0.15″, 0.25″, 0.5″ and 1″ available
— Comes with an adjustable magnetic base for easy mounting.
— Spring loaded arm disengages to prevent damage from overtravel.

ADMET DIC system is a fully integrated solution that utilizes optimized correlation algorithms to provide non-contact, full-field, two-dimensional displacement and strain data for mechanical testing on planar specimens. In-plane displacements are measured at every point within the area of interest, and the full-field strain field is computed and displayed to easily identify strain concentrations.

Click here for more information on ADMET’s DIC system.

ADMET’s PC-based VeX Video Extensometers are non-contacting distance measurement systems capable of measuring axial and transverse strains. Our VeX Extensometers enable strain measurements of high elongation materials, biomaterials in situ, wires, films and other thin specimens across a range of temperatures.

Click here for more information on the VeX Extensometer.

— Digital and analog displacement transducers with various displacement ranges

— For 6 x 12 in, 4 x 8 in, or 3 x 6 in cylinders
— Includes two displacement transducers
— Compressometer-only option with one transducer also available

For fracture toughness testing per ASTM E1820, E399, E647, etc.

FM-3541 is a fracture mechanics gauge used to determine parameters such as JIC, KIC, R-curve, fatigue crack growth rate (da/dN), and to comply with standards like E1820, E399, and E647. It is suitable for tests on various specimen types, including compact tension, arc-shaped, disk-shaped, and bend specimens, and meets the requirements for JIC and R-curve testing as per E1820.

Features:
— May be left on through specimen failure
— Fully enclosed gauges for protection from accidental damage
— Sharp grooves per ASTM E1820 and E399 for improved stability when mounted
— All standard configurations meet ASTM E1820, ISO 12135, and ISO 9513 Class 1 requirements for accuracy.
— Maximum operating frequency may be from 5 Hz to >200 Hz depending on COD gage and test apparatus configurations
— For da/dN testing or pre-cracking, where maximum frequency (>50 Hz) is required, minimum measuring ranges are recommended
— For KIC/JIC testing, maximum accuracy is achieved with the smallest measuring range and the largest gauge length that will perform the test.