The Endevco Model 2220D is a subminiature, piezoelectric
accelerometer designed specifically for high temperature
vibration measurement on mini-structures and small objects.
The unit is hermetically sealed and it is ideal for use
in extreme environmental conditions. Its light weight
(3.1 gm) effectively minimizes mass loading. The accelerometer
is a self-generating device that requires no external
power source for operation.
Model 2220D features Endevco's Piezite® Type P-8 crystal
elements, operating in annular shear mode, which 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 specially designed,
low-noise coaxial cable is supplied for error-=free operation.
The transducer has a centrally located thru bolt, allowing
360° cable orientation. The unit may also be adhesive
mounted if the application permits.
Endevco Signal Conditioner Models 133, 2775A or CCAS
are recommended for use with this high impedance accelerometer.
Features:
• Requires no external power
• Annular shear
• To +500°F (+260°C)
• Light weight (3.1 gm)
• Hermetically sealed
• 360° Cable orientation