 The Endevco Model 7250A is a subminiature, piezoelectric
accelerometer with integral electronics, designed specifically
for measuring vibration on small objects. The unit is
hermetically sealed for use in extreme environments and
to ensure long term stability. This accelerometer offers
high resonance frequency and wide bandwidth, its light
weight (1.8 gm) effectively eliminates mass loading effects.
The Model 7250A features a standard 6-40 coaxial connector
which requires a specially designed coaxial cable for
error-free operation.
The Model 7250A features Endevco's Piezite® Type P-8
crystal element, operating in annular shear mode. 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
constant current power. Signal ground is connected to
the outer case of the unit and, when used with the supplied
isolated mounting screw/washer, it is electrically isolated
from ground. The centrally located mounting bolt permits
360° cable orientation, however, the unit may also be
adhesively mounted. A model number suffix indicates acceleration
sensitivity in mV/g;, i.e., 7250A-10 features output sensitivity
of 10 mV/g.
A special version Model 7250AM1, is available with solder
pins as output terminals instead of the 6-40 UNF connector.
Endevco Signal Conditioner Models 4416B, 133, 2792B, 2775A
or OASIS 2000 Computer-Controller System are recommended
for use with these accelerometers.
Features:
• Low impedance output
• Hermetically sealed
• 360° cable orientation
• Light weight (1.8 gm)
• Flight test applications
Endevco Model 7250A-2-10
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