The Endevco Model 7264 series is a family of very low
mass piezoresistive accelerometers weighing only 1 gram.
They are designed for flutter testing, modal testing,
biodynamics measurements and similar applications that
require minimum mass loading and broad frequency response.
They may also be used for shock testing of light weight
systems or structures and meets SAEJ211 specifications
for anthropomorphic dummy instrumentation.
Model 7264 accelerometers have minimum damping, thereby
producing no phase shift over their useful frequency range.
The Model 7264-200 has Endevco's exclusive sapphire needle
positive mechanical stops to protect against overrange
shock. With a frequency response extending down to dc
or steady state acceleration, these transducers are ideal
for measuring long duration transients as well as short
duration shocks.
The Model 7264 utilizes Endevco's Piezite® P-11 semiconductor
elements in a half-bridge circuit, providing a low impedance
output of 500 mV full scale at 10 VDC excitation. Bridge
completion resistors are normally located in the signal
conditioning equipment and allow shunt calibration of
the transducer. This unit is also available with increased
performance, providing for 1% transverse sensitivity ("T"
Option) and +/-25 mV zero measured output ("Z" Option).
Endevco Model 136 Three-Channel System, Model 4430A or
Model 68207 BCAS Computer Controlled System are
recommended as signal conditioner and power supply.
Features:
• Small size
• 200 and 2,000 g full scale
• Undamped
• DC response