Dytran 3493A miniature IEPE triaxial accelerometers

Dytran Instruments, Inc. announces the release of Series 3493A, an innovative
range of ultra miniature, low noise IEPE triaxial accelerometers. Dytran is a
leading manufacturer of piezoelectric and DC MEMS accelerometers, force and
pressure transducers and associated electronics.

Characterised by its miniature size (0.762 L X 0.6096 W X 0.6604cm H)
and weighing only 0.9 grams, Dytran Series 3493A can be easily mounted in
spaces that are inaccessible to other types of triaxial accelerometers.

The new accelerometer utilises a J-FET amplifier, demonstrating a
considerably lower noise floor (and therefore better resolution) than
MOSFET-based IEPE devices. Improved signal-to-noise ratio makes it ideal for
applications where very low vibration amplitudes are being measured and maximum
resolution is required.

In each of the three orthogonal axes, the instrument generates a voltage
proportional to vibration by stressing a ‘planar shear’ type, self-generating
crystal element structure inside the sensor housing. Featuring very low mass
and high crystal stiffness, the accelerometer is able to have a resonant
frequency greater than 30 kHz. As a result, it can be used to measure high
frequency vibration with very little error.

Key features of Dytran Series 3493A miniature IEPE triaxial accelerometers
include titanium case packaging; choice of two sensitivities (5mV/g and 10mV/g);
and integral multi conductor, shielded cable design terminated with a 4-pin,
º-28 threaded connector designed to mate with several models of extension
cables for connection to IEPE power sources.

Series 3493A miniature IEPE triaxial accelerometers find application in shock
and vibration testing of small lightweight specimens (such as printed circuit
boards), product response testing, modal and structural analysis; and general
purpose triaxial vibration testing, among many more.

Metromatics is the distributor in Australia and New Zealand for Dytran
Instruments, Inc.

For further information, please visit the Metromatics website www.metromatics.com.au or call (07)

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