Piezoelectric
Accelerometer Endevco Model 7702A-17-50
The Endevco Model 7702A-XXXX stud mounted, ISOSHEAR
piezoelectric accelerometer is designed for general vibration
measurement on structures and objects. The ISOSHEAR design
is extremely stable and 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. They are
also capable of accurate vibration measurement up to +550°F
(+288°C). 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 7702A-XXXX features Endevco's Piezite® Type
P-8 crystal element, operating in shear mode. Signal ground
is connected to the outer case of the unit. When used
with an isolated mounting stud, the accelerometer is electrically
isolated from ground. 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., 7702A-50 features
output sensitivity of 50 PC/g.
Endevco Signal Conditioner Models 133, 2775A or OASIS
2000 Computer-Controlled System are recommended for use
wit this high impedance accelerometer.
Features:
• To +550°F (+288°C), temperature compensated
• Hermetically sealed
• Top connector, 5/8" and 3/4" Hex
• MIL-STD 740-2 applications
• Requires no external power
• ISOSHEAR
• Low base strain sensitivity
The Endevco Model 7702A-XXXX stud mounted, ISOSHEAR
piezoelectric accelerometer is designed for general vibration
measurement on structures and objects. The ISOSHEAR design
is extremely stable and 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. They are
also capable of accurate vibration measurement up to +550°F
(+288°C). These units are hermetically sealed against
external contamination. The accelerometer is a self-generating
device that requires no external power source for operation.
