Piezoelectric
Accelerometer Endevco Model 7704A-17-50
The Endevco Model 7704A-XXXX ISOSHEAR piezoelectric
accelerometer is designed for general vibration measurement
on structures and objects. The ISOSHEAR design is extremely
stable and virtually insensitive to such environmental
inputs as base bending and thermal transients. This line
of accelerometers has been tested in a radiation environment
up to 1E8 rads without performance degradation, and they
are also capable of accurate vibration measurement up
to +550F (+288C). These units are hermetically sealed
against external contamination. The accelerometer is a
self-generating device that requires no external power
source for operation.
The Model 7704A-XXXX features Endevco's Piezite® Type
P-8 crystal element, operating in shear mode. Signal ground
is isolated from the outer case of the unit. The accelerometer
features a 10-32 top-connector A low-noise coaxial cable
is supplied for error-free operation. The model number
suffix indicates acceleration sensitivity in pC/g; i.e.,
7704A-100 features output sensitivity of 100 PC/g.
Endevco Signal Conditioner Models 133, 2775A or CCAS™
are recommended for use with this high impedance accelerometer.
Features:
• Requires no external power
• ISOSHEAR
• MIL-STD 740-2 applications
• Top connector, 5/8" and 3/4" Hex
• To +550°F (+288°C), temperature compensated
• Hermetically sealed
• Low base strain sensitivity
• Ground isolated
The Endevco Model 7704A-XXXX ISOSHEAR piezoelectric
accelerometer is designed for general vibration measurement
on structures and objects. The ISOSHEAR design is extremely
stable and virtually insensitive to such environmental
inputs as base bending and thermal transients. This line
of accelerometers has been tested in a radiation environment
up to 1E8 rads without performance degradation, and they
are also capable of accurate vibration measurement up
to +550F (+288C). These units are hermetically sealed
against external contamination. The accelerometer is a
self-generating device that requires no external power
source for operation.
