Our model EAM miniature axial extensometer is designed
around our new miniature cross-flexure module. This
innovative design provides improved performance and ruggedness over
existing units as well as improved cable attachment (a leading cause
of sensor failure).

Small, light, and rugged, our ultra-light weight, miniature axial
extensometers are typically used for testing small or delicate
specimens. These units work equally well on thin sheet, wire,
or biomedical materials. Our miniature axial extensometer is
designed to fit in the tight space between grips when testing small
specimens. Typical models measure only 0.6 inches [15
mm] tall, they weigh as little as 7 grams, and they have very low operating
force to limit any influence on small samples.

All model EAM extensometers feature a full, 350 ohm, strain gauge bridge design
and are compatible with most any brand test equipment. We can
install the proper connector to interface to most any electronics
including Instron. If your test frame or set-up does not have
the required strain signal conditioner, we can supply stand-alone
electronics calibrated with your extensometer. This will
allow you to use a chart recorder, digital display, or data
acquisition card.
All standard models meet ASTM B-1 and ISO 9513, class 0,5 accuracy
requirements. Each extensometer comes with an inspection
certificate traceable to NIST, spare parts kit, spare set of tool-steel knife edges, and a
quality, foam lined, plastic storage case.
Standard
models available in any combination of measuring range and
temperature range listed in the chart below. If you need an
extensometer in a configuration other than what is listed, please
contact us with your specific needs.
Excitation: 5 to 10 VDC recommended, 12 VDC or VAC maximum
Output: 2 to 4 mV/V nominal
Linearity: 0.10% to 0.15% of full measuring range
Cable: Ultra-flexible, 8 ft. (2.5 m) standard cable
Warranty: Full one year warranty
Bare leads or connector to interface to most any brand test equipment
Special knife edges
Special wire forms for wire or odd shaped specimens