Model 3448 with 0.5 in. gage length
use in environmental chambers where the entire extensometer
must get hot. These capacitive extensometers may be
used up to 540 C (1000 F) without any cooling.
These extensometers use a high temperature capacitive
sensor and do not require any cooling. They will operate
up to the maximum temperature limit of most environmental
chambers used in materials testing frames. The Model
3555 is ideal for testing composites, metals and high
temperature polymers in tensile, compression or cyclic
testing. All units have travel in both compression and
The extensometer comes with the model 3601 signal conditioner.
The output is a high level DC voltage, factory calibrated
with the extensometer to +/- 5 or +/- 10 VDC typically.
They are readily interfaced with most existing test
controllers, and may be directly connected to data acquisition
systems and chart recorders. Bringing the signal into
a spare DC input channel on the test controller allows
the extensometer to be used for strain controlled tests
like low cycle fatigue.
Model 3555 with 25mm g.l. and long travel
Electronics included with Model 3555
high accuracy. Linearity is within 0.05%.
signal conditioner and power supply included. Provides
high level DC voltage output with exceptionally low
noise (typical 0.1 mV on 10 VDC output). Easily interfaced
to test controllers, data acquisition boards and chart
fully calibrated with specified voltage output
units operate in tension and compression.
Quick Attach Kit as standard, to allow quick mounting
dual flexure design.
high quality foam lined case and spare set of knife
|Linearity: 0.05% except
0.10% on longer travel versions
Output: user specified, +/- 5 VDC or +/- 10VDC typical
Input: Power supply included, with power cord.
Model 3555 Available Versions:
ANY combination of gage length and travel listed below
is available, except as noted.
Travel in Percent Strain:
(and linearity of output in percent of full
| ± 5
| + 10 / -5
| + 20 / -10
example: 20% strain in a 50 mm gage length version
results in total measuring range of 10 mm. .