The Endevco Models 7722/7724 are rugged piezoelectric
accelerometers built specifically for measuring vibration
under cryogenic conditions. Signal outputs of these units
are very stable even at extremely low temperatures. Their
internal construction is designed to withstand multiple
cycles of thermal shock with steep temperature gradient.
The accelerometers are self-generating devices that require
no external power source for operation.
The Models 7722/7724 feature Endevco's Piezite® Type
P-23 crystal elements arranged in ISOSHEAR configuration,
which exhibits low base strain sensitivity and excellent
output stability over time. To achieve high reliability
under the most extreme temperature conditions, no thermal
expansion-critical connection, such as wirebond, epoxy
or solder is used inside the accelerometer. The Model
7722 is a grounded design (ground connects to the outer
case), and the Model 7724 is an isolated design (both
signal and ground are isolated form the outer case).
Endevco Signal Conditioner Models 133, 2775A or VCAS™
are recommended for use with these high impedance accelerometers.
Features:
• Requires no external power
• The ultimate accelerometer for cryogenic temperature
measurement
• Withstand repeated thermal shock down to -452°F (-269°C)
• Wide bandwidth, ISOSHEAR
• Hermetically sealed, top connector
The Endevco Models 7722/7724 are rugged piezoelectric
accelerometers built specifically for measuring vibration
under cryogenic conditions. Signal outputs of these units
are very stable even at extremely low temperatures. Their
internal construction is designed to withstand multiple
cycles of thermal shock with steep temperature gradient.
The accelerometers are self-generating devices that require
no external power source for operation.
