Meggitt Sensing Systems Endevco® Model 2221D Piezoelectric Accelerometer0 pages

Model 2221D
Piezoelectric accelerometer
Features

Description

•t NEW! 2221D-R available as replacement sensor
• High output, 17 pC/g
• Light weight (12 gm)
• 360° cable orientation
• Low profile
• Vibration measurement on small structures

The Endevco® model 2221D is a piezoelectric accelerometer
designed specifically for vibration measurement on small
structures and objects. The unit is epoxy sealed and it is ideal for
use in a controlled environment. Its light weight (12 gm) effectively
minimizes mass loading. The accelerometer is a self-generating
device that requires no external power source for operation.
The model 2221D features Endevco’s Piezite® type P-8 crystal
element operating in annular shear mode. This device exhibits
excellent output sensitivity stability over time. Signal ground
is connected to the outer case of the unit. When used with an
isolated mounting screw, the accelerometer is electrically isolated
from ground. A low-noise coaxial cable is supplied for errorfree operation. The transducer has a centrally located thru bolt,
allowing for 360° cable orientation. The unit may also be adhesive
mounted if the application permits.
Endevco signal conditioner models 133, 2771C, 2775B, or Oasis 2000 computer-controlled system
are recommended for use with this high impedance accelerometer.