 The Endevco Model 7251A is a small piezoelectric accelerometer
with integral electronics, designed specifically for measuring
vibration on most structures. The unit is hermetically
sealed against environmental contamination, offers high
output sensitivity and wide bandwidth. The new light weight
(10.5 gm) design effectively minimizes mass loading effects.
The Model 7251A features Endevco's Piezite® Type P-8
crystal element, operating in annular shear mode, which
exhibits low base strain sensitivity and excellent output
stability over time. The 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 constant current power.
Signal ground is connected to outer case of the unit and,
when used with the supplied isolated mounting screw, it
is electrically isolated from ground. The centrally located
mounting bolt permits 360° cable orientation, a very desirable
feature in many applications. A model number suffix indicates
sensitivity in mV/g; i.e., 7251A-10 features output sensitivity
of 10 mV/g.
Endevco Signal Conditioner Models 133, 2792B, 2793, 2775A
or OASIS 2000 Computer-Controlled System are recommended
for use with this accelerometer.
Features:
• Hermetically sealed
• Wide bandwidth
• 360° cable orientation
• New low profile
• Machine tool measurements, shaker tables, flight test/aerospace
Endevco Model 7251A-10-100-500
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