Servo-accelerometer SX41800
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Aerospace Energy Measurement Railway Sensorex® High performance digital & analogue servo-accelerometerSX41800 KtUb bySensorex mart ensor Characteristics • Analog output (±5V) & digital output (RS485) • Specially designed for severe environments (shocks, vibrations, electromagnetic perturbations) • Very long term stability • Out standing performances • Conform to European Standard of Electromagnetic Compatibility • Oil damped servo mechanism • Autotest function Meggitt (Sensorex) SX41800 is a high performance digital RS485 (MODBUS) servo-accelerometer designed to deliver an output proportional to acceleration. The incorporation of an optical infrared sensor and an inertial mass with servo feedback, as well as optical position measurement and friction-free mounting, gives the SX41800 outstanding accuracy, long term stability and high reliability. Unit can directly interface with any standard PC, with fully user-selectable acquisition and set-up parameters. Analog voltage output is also available. Moreover, an integrated auto-test function enables checks of servo loop and associated functions. Also, the damped servo mechanism being fully oil immersed, this device offers high resistance to shocks and vibrations. Meggitt (Sensorex) SX41800 is also CE EN 50155 railway norm & CE EN 61326 norm qualified. Principle: A galvanometer located within the core of this sensor is sensitive to the effects of gravity. While subjected to acceleration, the inertial mass, mounted on a coil, tends to move with respect to the sensitive axis. This movement is then measured by an optical detector and converted into a current. The current brings the inertial mass back to its original position. By measuring the required current for maintaining pendulum stability, the servo-accelerometer produces an output that is proportional to the applied acceleration. Our measurement product competencies: LVDTs | Inertial systems | Inclinometers | Accelerometers | IMU | MEMS sensors | Servo-inclinometer | Conditioners • Linear acceleration/ deceleration measurements • Automatic train position control (ATC, ATP, ERTMS) • Low frequency vibration measurements (seismic monitoring) • Structure and building movement monitoring MEGGiTT smart engineering for extreme environments

Aerospace Energy Measurement Railway Sensorex® High performance digital & analogue servo-accelerometer SX41800 Outputs Power supply Consumption Bandwidth Non linearity Cross axis sensitivity Bias Bias stability over 1 year Analogue output sensitivity Tolerance on sensitivity Sensitivity stability over 1 year Resolution Electrical noise Zero thermal drift Sensitivity thermal drift Output impedance Operating temperature Storage temperature Selection guide Range Product code Note: accelerometers are supplied with a 2 meter shielded cable and a 8 pin M12 connector. MEGGiTT smart engineering...