STW will be presenting the newly developed SMX.igs-a inclination sensors at the Sensor+Test sensor and measurement technology trade fair in Nuremberg. The sensor features a newly developed, robust housing and additional connection options. These new features give manufacturers of mobile machinery greater flexibility in the design of their machines.
Designed for mobile machines, the SMX.igs-a inclination sensor measures accelerations, inclination angles and rotation rates in all three spatial axes. With a newly designed housing with two integrated M12 connections, the SMX.igs-a is easily integrated into both new and existing system architectures. The sensors are available in non-safety and safety variants up to SIL 2 / PL d.
In all working and travelling processes of mobile machinery, dynamic influences such as movement, shock and vibration cause interference when recording acceleration data. If these influences are not compensated for, they can falsify the measurement results. The SMX.igs-a provides users with various configurable filter algorithms to improve the stability of measured values in the presence of dynamic influences. These include low-pass filters and a Kalman filter. The latter merges the acceleration and rotation rate data using sensor data fusion. It is a filter algorithm that calculates the measured values, predicts the further course and corrects the values accordingly. The Kalman filter is characterised by being highly dynamic and yet show very good damping. Due to the predictive nature of the filter, it is only available in the non-safety version of the SMX.igs-a.
The recorded measured values are forwarded to a higher-level control systems via CAN, CANopen Safety, CANopen or SAE J1939. Intuitive configuration dashboards in the STW open-source software platform openSYDE are available for integration into the system architecture and commissioning. Like all STW products, the SMX.igs-a is designed for use in the most adverse environmental conditions. The sensors have a protection class of up to IPX9K and are suitable for an operating temperature range of -40 to +85 °C.
STW will be presenting these and other sensor innovations at Sensor+Test in Nuremberg, June 11-13, Hall 1, Stand 508.