Piezoelectric
Accelerometer Endevco Model 2248 & 2248M1
The Endevco Model 2248 is a small piezoelectric accelerometer
for shock and vibration measurement of structures subjected
to very high temperatures. This device is capable of operation
in nuclear environments during the presence of gamma and
neutron radiation. It features a side 10-32 receptacle,
with either flange (2248) or integral stud-mount (2248M1).
The accelerometer is a self-generating device that requires
no external power source for operation.
The 2248 features Endevco's Piezite® Type P-14 sensing
element in our patented ISOBASE® construction, to
provide for flat charge temperature response over the
range of -67°F to +900°F (-55°C to +482°C). ISOBASE construction
provides mechanical isolation of base strain from the
mounting surface. The unit is constructed using Inconel,
and provides for hermeticity through welding and glass-to-metal
fusion at the connector. Signal ground is connected to
case.
Endevco Signal Conditioner Model 2721B is recommended
for use with this accelerometer. The 2271A Remote Charge
Convertor is also compatible for applications using this
high impedance accelerometer.
Features:
• Small size
• Light weight
• High temperature operation (+482°C)
• Radiation hardened for nuclear environments
• Gas turbine, nuclear applications