Variable
Capacitance Accelerometer Endevco Model 7290A
The Endevco Model 7290A MICROTRON® accelerometer
family utilizes unique variable capacitance microsensors.
The accelerometers are designed for measurement of relatively
low level accelerations in aerospace and automotive environments.
Typical applications require measurement of whole body
motion immediately after the accelerometer is subjected
to a shock motion, and in the presence of severe vibrational
inputs.
Gas damping and internal overrange stops enable the anisotropically-etched
silicon microsensors to withstand high shock and acceleration
loads.
The Model 7290A can operate from 9.5 V to 18.0 V and provide
a high level, low impedance output. The +/-2 volt differential
output is dc coupled at a dc bias of approximately 3.6
V. Frequency response is controlled by the near-critically
damped sensors. The use of gas damping results in very
small thermally-induced changes of frequency response.
Endevco Model 136 Three-Channel System, Model 4430A or
Model 68207 BCAS™ Computer Controlled System are
recommended as signal conditioner and power supply.
Features:
• Rugged
• 2 to 100 g full scale
• Overrange stops
• Gas damping
• +/-2 V full scale output
The Endevco Model 7290A MICROTRON® accelerometer
family utilizes unique variable capacitance microsensors.
The accelerometers are designed for measurement of relatively
low level accelerations in aerospace and automotive environments.
Typical applications require measurement of whole body
motion immediately after the accelerometer is subjected
to a shock motion, and in the presence of severe vibrational
inputs.
