Single axis Inclinometer SX41200 series

Single axis servo-inclinometer/ accelerometer



  • High performances
  • Excellent temperature stability
  • Very high resistance to shocks and vibrations (accreditation GAM T13 and EN 50155)
  • Rugged, watertight IP65 sealed housing for severe environments
  • Conform to European Standard of Electromagnetic compatibility


The Meggitt (Sensorex) SX41200 is a single axis closed-loop servo-inclinometer/ accelerometer, designed to provide high reliability tilt or acceleration measurements within extreme environments, and particularly those characterized by high shock and vibration inputs.

The highly rugged design of the SX41200 incorporates a galvanometric pendulum sensing element with hydromechanical damping, combined with an optical position sensor, with voltage or current output, proportional to the sine of the angle of tilt.

When the instrument is submitted to a certain angle alpha, the galvanometric pendulum tends to move in the direction of the inclination. Its position is detected and converted into a current which feeds back to the galvanometer in order to bring it back to its initial position.

This current, proportional to the measured gravity, passes through an accuracy resistor and provides the output voltage.

An output amplifier gives a low output impedance.


  • Industry :

Alignment of structures (rolling mills, alternators…)

Safety purpose (cranes, offshore platforms…)

Levelling (roads, railway tracks…)

Angular measurements

  • Defense:

Positioning of shooting platforms, radar antennas…

Detection of ship roll and pitch

  • Railway:

Acceleration measurements (ATP, ATC)

Download product data sheet