Endevco introduces high resonance frequency accelerometer
for automotive test applications.
Endevco Corporation, the leader in sensing solutions for
demanding vibration, shock and pressure applications, today
announced the introduction of its new 7264D High Resonance
Crash Accelerometer, building on the company's reputation
as the industry standard in piezoresistive accelerometers for
automotive safety testing applications including vehicle barrier
and sled testing and anthropomorphic test dummies.
The 7264D is based on the highly regarded 7264B and C series of
transducers and provides an extended "flat" frequency range and
resonant frequency of over 40,000Hz. This enhanced performance
is proving invaluable to the increasing challenges faced by crash test
engineers.Automotive crash test events typically involve extremely
short duration shock pulses, sometimes from hard metal-to-metal
contact or mechanical fracture that may induce resonances in a sensor.
The result can be saturation of the measurement system with a
perceived temporary shift in the output signal.
The Endevco 7264D, with a resonance characteristic well above
the frequency range of interest, solves this problem and provides
the truest measurement available.In vibration and shock measurement,
the widest possible frequency range is best for obtaining a true
picture of the input signal. The 7264D delivers this performance
without inducing signal phase shifts found in other competitive
products which can "muddy" the data and result in hidden inaccuracies
that may render expensive test data useless.
Furthermore, data analysis can be complicated if sensors of different
damping coefficients are used. By providing an un-damped design
with a high resonant frequency, the Endevco 7264D avoids these
inaccuracies to reduce the risks and costs associated with
repeating expensive tests."We are very pleased to have achieved
this new level of performance in our accelerometer products for
the automotive industry," stated David Bucka, Endevco Market
Segment Manager, Automotive. "Our goal is to continually provide
innovative solutions that help manufacturers maintain efficient testing
operations and build products that maximize public safety."By
extending the useful frequency response well beyond what is currently
available, the new Endevco 7264D accelerometer is designed to
meet the current and future needs of the automotive safety test
community. It is J211 compliant, maintains the un-damped characteristics
desired by test engineers, and provides data records that are true and
accurate over an extended frequency range. Additional features
include true ratiometric operation over a wide range of excitation
voltage, optional connectors, multiple ID chip configurations, industry
standard cable lengths, and mounting accessories.
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July 2006
