AAA545 Servo Accelerometer

Single-axis acceleration sensor in MEMS technology (2- and 3-axial also available)

About the AAA545 Servo Accelerometer

The AAA545 Series range of Solid State Accelerometers measure vector acceleration with high accuracy and incorporate a micro-machined piezo-resistive strain gauge bridge silicon sensor incorporating an air damping feature. Unlike fluid damped devices the air damping employed is essentially independent of temperature. The transducer also incorporates positive mechanical stops confering excellent shock resistance.


Key features AAA545

  • Essentially zero temperature coefficent of damping ratio
  • Integral temperature compensation
  • DC input - DC output
  • High reliability


Applications AAA545

  • Data acquisition systems
  • Crash recorders
  • Fatigue life monitoring and prediction
  • Monitoring and controlling deceleration in mass transit systems
  • Road bed analysis and fault detection equipment for high speed railways
  • Military and civil flight simulators
  • Autopilots
  • Low frequency vibration monitoring


Measurement Range
±2g / ±5g / ±10g / ±20g / ±50g / ±100g
≤ 0.02%
Output [Supply Voltage]
16 - 36 mV [Single axis: 14,5 -27 VDC, 2- and 3-axial: 5VDC]
Input Current
5m A dc max.
≤ 0.0005%
Damping Ratio
0.7 (±0.2) @ 25°C
Operating Temperature
-40°C to +105°C
Compensated Temperature
0°C to +50°C
Storage Temperature
-55°C to +130°C
Acceleration Limit
400g for 2 to 10 g versions, 20 x range or 2000g, whichever is lower for other versions (any direction)
40 g max.
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