Low-g Accelerometer (LGA-BTA)
Specifications and User Guide


  • Primary Test: Point the sensor arrow upward and hold sensor motionless; reading should be approximately 9.8 m/s^2. Point arrow downward; reading should be approximately -9.8 m/s^2.
  • Secondary Test: Make sure that the line marked by the arrow on the label of the sensor is positioned parallel to the direction of intended acceleration measurement.

What is the difference between your accelerometers?
What can I do to reduce the error in Physics with Vernier Experiment 9, Newton's 2nd Law?
Can I use an accelerometer to measure velocity or position?
How do you calibrate an accelerometer?
What are the dimensions of the mounting holes on the Vernier wired (BTA) accelerometers?

Power: 30 mA @ 5VDC
Range: +/-50 m/s2 (+/-5g)
Accuracy: +/-0.5 m/2 (+/- 0.05g)
Frequency Response: 0 to 100 Hz

Calibrate? Usually, no. The sensor is individually calibrated before shipping. For many experiments, you may use the stored calibration and zero the sensor before collecting data.

Perform a two-point calibration.

  • First point: position the sensor with the arrow pointing down and held motionless, and define this reading as -9.8 m/s2 or -1 g.
  • Second point: rotate the sensor so that the arrow points up and define this reading as +9.8 m/s2 or +1 g.
  • Zero the accelerometer in the orientation to be used.

Data Vest (DV)
25-g Accelerometer (ACC-BTA)
3-Axis Accelerometer (3D-BTA)