 The Endevco Model 2255B is a miniature, lightweight
piezoelectric accelerometer with integral electronics,
designed specifically for far-field high-g shock measurement
on structures and test articles. The unit features an
electronic second order low-pass filter between the sensor
and the amplifier input stage to prevent saturation due
to accelerometer resonance.
The Model 2255B features Endevco's Piezite® crystal
element, operating in annular shear mode, which exhibits
excellent output stability over time. A unique strain
isolation design internal to the sensor assembly reduces
any strain input due to bending motion in the mounting
surface. This accelerometer incorporates an internal hybrid
signal conditioner in a two-wire system, which transmits
its low impedance voltage output through the same cable
that supplies the required constant current power. Both
the output and signal ground terminals are electrically
isolated form the mounting surface. The accelerometer
features an integral 1/4-28 mounting stud and two solder-pin
terminals for output connection. Small gauge, light weight
hook-up wires are provided for error-free operation. The
Model number suffix indicates acceleration sensitivity
in mV/g; i.e., 2255B-1 features output sensitivity of
0.1 mV/g.
Endevco Signal Conditioner Models 4416B, 133, 2792B, 2793
or 2775A, set to +10 mA, are recommended for use with
this accelerometer.
Features:
• Low impedance output
• Far-field, high-g shock
• Build-in electronic LP filter
• Strain isolated
• Solder terminals
Endevco Model 2255B-1-01
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